CVE-2011-1521 (GCVE-0-2011-1521)

Vulnerability from cvelistv5 – Published: 2011-05-24 23:00 – Updated: 2024-08-06 22:28
VLAI
Summary
The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2260 records in the last 180 days details
References
URL Tags
http://openwall.com/lists/oss-security/2011/09/15/5 mailing-listx_refsource_MLIST
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://hg.python.org/cpython/rev/b2934d98dac1/ x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-1592-1 vendor-advisoryx_refsource_UBUNTU
http://hg.python.org/cpython/rev/96a6c128822b/ x_refsource_CONFIRM
http://secunia.com/advisories/51040 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/50858 third-party-advisoryx_refsource_SECUNIA
http://lists.apple.com/archives/Security-announce… vendor-advisoryx_refsource_APPLE
http://bugs.python.org/issue11662 x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2011/03/24/5 mailing-listx_refsource_MLIST
http://openwall.com/lists/oss-security/2011/03/28/2 mailing-listx_refsource_MLIST
http://securitytracker.com/id?1025488 vdb-entryx_refsource_SECTRACK
http://hg.python.org/cpython/file/96a6c128822b/Mi… x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=690560 x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=737366 x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-1596-1 vendor-advisoryx_refsource_UBUNTU
http://hg.python.org/cpython/file/b2934d98dac1/Mi… x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2011/09/11/1 mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-1613-2 vendor-advisoryx_refsource_UBUNTU
http://support.apple.com/kb/HT5002 x_refsource_CONFIRM
https://www.djangoproject.com/weblog/2011/sep/10/127/ x_refsource_CONFIRM
http://secunia.com/advisories/51024 third-party-advisoryx_refsource_SECUNIA
http://www.ubuntu.com/usn/USN-1613-1 vendor-advisoryx_refsource_UBUNTU
http://openwall.com/lists/oss-security/2011/09/13/2 mailing-listx_refsource_MLIST
https://www.djangoproject.com/weblog/2011/sep/09/ x_refsource_CONFIRM
Date Public
2011-03-24 00:00
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T22:28:41.789Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20110916 Re: CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2011/09/15/5"
          },
          {
            "name": "MDVSA-2011:096",
            "tags": [
              "vendor-advisory",
              "x_refsource_MANDRIVA",
              "x_transferred"
            ],
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:096"
          },
          {
            "name": "SUSE-SR:2011:009",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://hg.python.org/cpython/rev/b2934d98dac1/"
          },
          {
            "name": "USN-1592-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1592-1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://hg.python.org/cpython/rev/96a6c128822b/"
          },
          {
            "name": "51040",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/51040"
          },
          {
            "name": "50858",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/50858"
          },
          {
            "name": "APPLE-SA-2011-10-12-3",
            "tags": [
              "vendor-advisory",
              "x_refsource_APPLE",
              "x_transferred"
            ],
            "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://bugs.python.org/issue11662"
          },
          {
            "name": "[oss-security] 20110324 CVE Request -- Python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2011/03/24/5"
          },
          {
            "name": "[oss-security] 20110328 Re: CVE Request -- Python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2011/03/28/2"
          },
          {
            "name": "1025488",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://securitytracker.com/id?1025488"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=690560"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737366"
          },
          {
            "name": "USN-1596-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1596-1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS"
          },
          {
            "name": "[oss-security] 20110911 CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2011/09/11/1"
          },
          {
            "name": "USN-1613-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1613-2"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://support.apple.com/kb/HT5002"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.djangoproject.com/weblog/2011/sep/10/127/"
          },
          {
            "name": "51024",
            "tags": [
              "third-party-advisory",
              "x_refsource_SECUNIA",
              "x_transferred"
            ],
            "url": "http://secunia.com/advisories/51024"
          },
          {
            "name": "USN-1613-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "http://www.ubuntu.com/usn/USN-1613-1"
          },
          {
            "name": "[oss-security] 20110913 Re: CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://openwall.com/lists/oss-security/2011/09/13/2"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.djangoproject.com/weblog/2011/sep/09/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2011-03-24T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2014-02-10T16:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "[oss-security] 20110916 Re: CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://openwall.com/lists/oss-security/2011/09/15/5"
        },
        {
          "name": "MDVSA-2011:096",
          "tags": [
            "vendor-advisory",
            "x_refsource_MANDRIVA"
          ],
          "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:096"
        },
        {
          "name": "SUSE-SR:2011:009",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://hg.python.org/cpython/rev/b2934d98dac1/"
        },
        {
          "name": "USN-1592-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1592-1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://hg.python.org/cpython/rev/96a6c128822b/"
        },
        {
          "name": "51040",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/51040"
        },
        {
          "name": "50858",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/50858"
        },
        {
          "name": "APPLE-SA-2011-10-12-3",
          "tags": [
            "vendor-advisory",
            "x_refsource_APPLE"
          ],
          "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://bugs.python.org/issue11662"
        },
        {
          "name": "[oss-security] 20110324 CVE Request -- Python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://openwall.com/lists/oss-security/2011/03/24/5"
        },
        {
          "name": "[oss-security] 20110328 Re: CVE Request -- Python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://openwall.com/lists/oss-security/2011/03/28/2"
        },
        {
          "name": "1025488",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://securitytracker.com/id?1025488"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=690560"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737366"
        },
        {
          "name": "USN-1596-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1596-1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS"
        },
        {
          "name": "[oss-security] 20110911 CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://openwall.com/lists/oss-security/2011/09/11/1"
        },
        {
          "name": "USN-1613-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1613-2"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://support.apple.com/kb/HT5002"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.djangoproject.com/weblog/2011/sep/10/127/"
        },
        {
          "name": "51024",
          "tags": [
            "third-party-advisory",
            "x_refsource_SECUNIA"
          ],
          "url": "http://secunia.com/advisories/51024"
        },
        {
          "name": "USN-1613-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "http://www.ubuntu.com/usn/USN-1613-1"
        },
        {
          "name": "[oss-security] 20110913 Re: CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://openwall.com/lists/oss-security/2011/09/13/2"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.djangoproject.com/weblog/2011/sep/09/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2011-1521",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20110916 Re: CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
              "refsource": "MLIST",
              "url": "http://openwall.com/lists/oss-security/2011/09/15/5"
            },
            {
              "name": "MDVSA-2011:096",
              "refsource": "MANDRIVA",
              "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:096"
            },
            {
              "name": "SUSE-SR:2011:009",
              "refsource": "SUSE",
              "url": "http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"
            },
            {
              "name": "http://hg.python.org/cpython/rev/b2934d98dac1/",
              "refsource": "CONFIRM",
              "url": "http://hg.python.org/cpython/rev/b2934d98dac1/"
            },
            {
              "name": "USN-1592-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-1592-1"
            },
            {
              "name": "http://hg.python.org/cpython/rev/96a6c128822b/",
              "refsource": "CONFIRM",
              "url": "http://hg.python.org/cpython/rev/96a6c128822b/"
            },
            {
              "name": "51040",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/51040"
            },
            {
              "name": "50858",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/50858"
            },
            {
              "name": "APPLE-SA-2011-10-12-3",
              "refsource": "APPLE",
              "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"
            },
            {
              "name": "http://bugs.python.org/issue11662",
              "refsource": "CONFIRM",
              "url": "http://bugs.python.org/issue11662"
            },
            {
              "name": "[oss-security] 20110324 CVE Request -- Python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes",
              "refsource": "MLIST",
              "url": "http://openwall.com/lists/oss-security/2011/03/24/5"
            },
            {
              "name": "[oss-security] 20110328 Re: CVE Request -- Python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes",
              "refsource": "MLIST",
              "url": "http://openwall.com/lists/oss-security/2011/03/28/2"
            },
            {
              "name": "1025488",
              "refsource": "SECTRACK",
              "url": "http://securitytracker.com/id?1025488"
            },
            {
              "name": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS",
              "refsource": "CONFIRM",
              "url": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=690560",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=690560"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=737366",
              "refsource": "CONFIRM",
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737366"
            },
            {
              "name": "USN-1596-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-1596-1"
            },
            {
              "name": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS",
              "refsource": "CONFIRM",
              "url": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS"
            },
            {
              "name": "[oss-security] 20110911 CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
              "refsource": "MLIST",
              "url": "http://openwall.com/lists/oss-security/2011/09/11/1"
            },
            {
              "name": "USN-1613-2",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-1613-2"
            },
            {
              "name": "http://support.apple.com/kb/HT5002",
              "refsource": "CONFIRM",
              "url": "http://support.apple.com/kb/HT5002"
            },
            {
              "name": "https://www.djangoproject.com/weblog/2011/sep/10/127/",
              "refsource": "CONFIRM",
              "url": "https://www.djangoproject.com/weblog/2011/sep/10/127/"
            },
            {
              "name": "51024",
              "refsource": "SECUNIA",
              "url": "http://secunia.com/advisories/51024"
            },
            {
              "name": "USN-1613-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-1613-1"
            },
            {
              "name": "[oss-security] 20110913 Re: CVE Request -- Django: v1.3.1, v1.2.7 multiple security flaws",
              "refsource": "MLIST",
              "url": "http://openwall.com/lists/oss-security/2011/09/13/2"
            },
            {
              "name": "https://www.djangoproject.com/weblog/2011/sep/09/",
              "refsource": "CONFIRM",
              "url": "https://www.djangoproject.com/weblog/2011/sep/09/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2011-1521",
    "datePublished": "2011-05-24T23:00:00.000Z",
    "dateReserved": "2011-03-28T00:00:00.000Z",
    "dateUpdated": "2024-08-06T22:28:41.789Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2011-1521",
      "date": "2026-11-04",
      "epss": "0.03564",
      "percentile": "0.8938"
    },
    "fkie_nvd": {
      "configurations": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:python:python:2.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "BD5A27DB-0113-4DE3-9CA0-0792CC7795AB",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.0.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "AEB6ED07-C176-496D-B9CA-F24933D71999",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "3870A704-5D26-4999-9C49-19AE9E88AAE2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.1.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "1A223BB3-DD5A-48C9-9C82-5D1C4F122828",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.1.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "C14973EE-5A2E-4935-8D29-594761502D72",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.1.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "3E502388-0A87-4503-8EC9-8A43E8BF43E9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "1E9C3C11-0D4F-44AB-BCA0-4963F1BF67DA",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.2.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "A3CD168A-2180-44C8-8784-3B32589904BB",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.2.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "EB30EAAD-5CF0-41DD-909B-C6AD94D88ABB",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.2.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "569FAD3A-17DF-424A-AF93-B0720D48D6B6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.3.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "0BD8ED56-5568-4461-B94A-0B5C1EF8C01A",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.3.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "396FFF60-8F61-43E5-BF0C-A0C319714247",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.3.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "75872F94-A537-4E57-8325-3426DB5D6C75",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.3.4:*:*:*:*:*:*:*",
                  "matchCriteriaId": "6A038A64-E659-47BB-B2C6-8FD151684CBB",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.3.5:*:*:*:*:*:*:*",
                  "matchCriteriaId": "A82F7C03-C9D3-4B83-AF74-30981EC25431",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.3.7:*:*:*:*:*:*:*",
                  "matchCriteriaId": "02839080-EFB1-4F63-9D4E-45E26D82ECF5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.4.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "00C353D0-C579-4C0B-AD7D-9E56353F2BF5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.4.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "7FB87E45-DBC2-4D0F-B4E9-38585D2F92A4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.4.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "976E5CD0-3A1E-43E6-9C34-B8F1EE1AB863",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.4.4:*:*:*:*:*:*:*",
                  "matchCriteriaId": "179EDC23-2328-4BB6-98D5-7C1A975A0C46",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.4.6:*:*:*:*:*:*:*",
                  "matchCriteriaId": "87B6E723-EC9D-44EF-9DB8-8A229E0ABBB5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.5.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "12D3CD4F-0C58-46F4-939D-FDF19BC98729",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.5.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "6D13FC75-3979-40A8-A1FE-EF86EB15C8A7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.5.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "78AE8C3C-53A1-408A-BA23-1EBA1E6A0E4C",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.5.4:*:*:*:*:*:*:*",
                  "matchCriteriaId": "DA59C66F-E469-42C1-9745-330E35AE5A26",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.6.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "244740D0-CACA-4607-964C-F0F46153653D",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.6.4:*:*:*:*:*:*:*",
                  "matchCriteriaId": "E852D2C6-D744-4311-97B3-CAEF073D6585",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.6.5:*:*:*:*:*:*:*",
                  "matchCriteriaId": "845FBD14-4175-49F1-B762-4F550CEF5B0D",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.6.6:*:*:*:*:*:*:*",
                  "matchCriteriaId": "84E7646B-BC7C-4ED6-925B-268291F31610",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.6.7:*:*:*:*:*:*:*",
                  "matchCriteriaId": "6CD6B328-E333-48C3-B2CC-41EC95321B7C",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:2.7.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "8CE2063E-5B74-4731-885F-80D2D7B15604",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        },
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*",
                  "matchCriteriaId": "FC0C702F-59E0-40AB-BA95-8F0803AB0550",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "3190C547-7230-476C-A43F-641FE7B891EB",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "74AC7EE5-F01D-4F28-80D1-4076B7B24BA6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*",
                  "matchCriteriaId": "2B547525-E0DB-4D64-8ED1-AF3F1B6FF65F",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "19064C18-1CD7-4F10-8065-4B900BB31F83",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*",
                  "matchCriteriaId": "B1997CB6-FD72-4B13-915A-7500AA06F4B1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:3.2:*:*:*:*:*:*:*",
                  "matchCriteriaId": "87845E79-F4A3-4390-9ACF-A14E86BCDB10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:*",
                  "matchCriteriaId": "E2C8F3C4-91AB-4AE3-A2FB-A093F97742FD",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs."
        },
        {
          "lang": "es",
          "value": "Los m\u00f3dulos urllib y urllib2 en Python v2.x anteriores a v2.7.2 y v3.x anteriores a v3.2.1 procesan los encabezados de ubicaci\u00f3n que especificar la redirecci\u00f3n del fichero: URLs, lo que hace que sea m\u00e1s f\u00e1cil para los atacantes remotos obtener informaci\u00f3n sensible o provocar una denegaci\u00f3n de servicio (consumo de recursos) a trav\u00e9s de una URL manipulada, como lo demuestra lso ficheros URLs: //etc/passwd y //dev/zero."
        }
      ],
      "id": "CVE-2011-1521",
      "lastModified": "2024-11-21T01:26:30.300",
      "metrics": {
        "cvssMetricV2": [
          {
            "acInsufInfo": false,
            "baseSeverity": "MEDIUM",
            "cvssData": {
              "accessComplexity": "LOW",
              "accessVector": "NETWORK",
              "authentication": "NONE",
              "availabilityImpact": "PARTIAL",
              "baseScore": 6.4,
              "confidentialityImpact": "PARTIAL",
              "integrityImpact": "NONE",
              "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
              "version": "2.0"
            },
            "exploitabilityScore": 10.0,
            "impactScore": 4.9,
            "obtainAllPrivilege": false,
            "obtainOtherPrivilege": false,
            "obtainUserPrivilege": false,
            "source": "nvd@nist.gov",
            "type": "Primary",
            "userInteractionRequired": false
          }
        ]
      },
      "published": "2011-05-24T23:55:02.840",
      "references": [
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch"
          ],
          "url": "http://bugs.python.org/issue11662"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch"
          ],
          "url": "http://hg.python.org/cpython/rev/96a6c128822b/"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch"
          ],
          "url": "http://hg.python.org/cpython/rev/b2934d98dac1/"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://openwall.com/lists/oss-security/2011/03/24/5"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://openwall.com/lists/oss-security/2011/03/28/2"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://openwall.com/lists/oss-security/2011/09/11/1"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://openwall.com/lists/oss-security/2011/09/13/2"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://openwall.com/lists/oss-security/2011/09/15/5"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://secunia.com/advisories/50858"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://secunia.com/advisories/51024"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://secunia.com/advisories/51040"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://securitytracker.com/id?1025488"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://support.apple.com/kb/HT5002"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:096"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://www.ubuntu.com/usn/USN-1592-1"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://www.ubuntu.com/usn/USN-1596-1"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://www.ubuntu.com/usn/USN-1613-1"
        },
        {
          "source": "cve@mitre.org",
          "url": "http://www.ubuntu.com/usn/USN-1613-2"
        },
        {
          "source": "cve@mitre.org",
          "tags": [
            "Patch"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=690560"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737366"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://www.djangoproject.com/weblog/2011/sep/09/"
        },
        {
          "source": "cve@mitre.org",
          "url": "https://www.djangoproject.com/weblog/2011/sep/10/127/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "http://bugs.python.org/issue11662"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "http://hg.python.org/cpython/rev/96a6c128822b/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "http://hg.python.org/cpython/rev/b2934d98dac1/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://openwall.com/lists/oss-security/2011/03/24/5"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://openwall.com/lists/oss-security/2011/03/28/2"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://openwall.com/lists/oss-security/2011/09/11/1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://openwall.com/lists/oss-security/2011/09/13/2"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://openwall.com/lists/oss-security/2011/09/15/5"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://secunia.com/advisories/50858"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://secunia.com/advisories/51024"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://secunia.com/advisories/51040"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://securitytracker.com/id?1025488"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://support.apple.com/kb/HT5002"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:096"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.ubuntu.com/usn/USN-1592-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.ubuntu.com/usn/USN-1596-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.ubuntu.com/usn/USN-1613-1"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "http://www.ubuntu.com/usn/USN-1613-2"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "tags": [
            "Patch"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=690560"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737366"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.djangoproject.com/weblog/2011/sep/09/"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://www.djangoproject.com/weblog/2011/sep/10/127/"
        }
      ],
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": [
        {
          "description": [
            {
              "lang": "en",
              "value": "CWE-399"
            }
          ],
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ]
    },
    "nvd": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:python:python:2.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "BD5A27DB-0113-4DE3-9CA0-0792CC7795AB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.0.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "AEB6ED07-C176-496D-B9CA-F24933D71999",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3870A704-5D26-4999-9C49-19AE9E88AAE2",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.1.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1A223BB3-DD5A-48C9-9C82-5D1C4F122828",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.1.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "C14973EE-5A2E-4935-8D29-594761502D72",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.1.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3E502388-0A87-4503-8EC9-8A43E8BF43E9",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "1E9C3C11-0D4F-44AB-BCA0-4963F1BF67DA",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.2.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A3CD168A-2180-44C8-8784-3B32589904BB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.2.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "EB30EAAD-5CF0-41DD-909B-C6AD94D88ABB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.2.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "569FAD3A-17DF-424A-AF93-B0720D48D6B6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.3.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "0BD8ED56-5568-4461-B94A-0B5C1EF8C01A",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.3.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "396FFF60-8F61-43E5-BF0C-A0C319714247",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.3.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "75872F94-A537-4E57-8325-3426DB5D6C75",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.3.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6A038A64-E659-47BB-B2C6-8FD151684CBB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.3.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A82F7C03-C9D3-4B83-AF74-30981EC25431",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.3.7:*:*:*:*:*:*:*",
                    "matchCriteriaId": "02839080-EFB1-4F63-9D4E-45E26D82ECF5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.4.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "00C353D0-C579-4C0B-AD7D-9E56353F2BF5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.4.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "7FB87E45-DBC2-4D0F-B4E9-38585D2F92A4",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.4.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "976E5CD0-3A1E-43E6-9C34-B8F1EE1AB863",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.4.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "179EDC23-2328-4BB6-98D5-7C1A975A0C46",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.4.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "87B6E723-EC9D-44EF-9DB8-8A229E0ABBB5",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.5.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "12D3CD4F-0C58-46F4-939D-FDF19BC98729",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.5.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6D13FC75-3979-40A8-A1FE-EF86EB15C8A7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.5.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "78AE8C3C-53A1-408A-BA23-1EBA1E6A0E4C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.5.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DA59C66F-E469-42C1-9745-330E35AE5A26",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.6.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "244740D0-CACA-4607-964C-F0F46153653D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.6.4:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E852D2C6-D744-4311-97B3-CAEF073D6585",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.6.5:*:*:*:*:*:*:*",
                    "matchCriteriaId": "845FBD14-4175-49F1-B762-4F550CEF5B0D",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.6.6:*:*:*:*:*:*:*",
                    "matchCriteriaId": "84E7646B-BC7C-4ED6-925B-268291F31610",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.6.7:*:*:*:*:*:*:*",
                    "matchCriteriaId": "6CD6B328-E333-48C3-B2CC-41EC95321B7C",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:2.7.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8CE2063E-5B74-4731-885F-80D2D7B15604",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FC0C702F-59E0-40AB-BA95-8F0803AB0550",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "3190C547-7230-476C-A43F-641FE7B891EB",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "74AC7EE5-F01D-4F28-80D1-4076B7B24BA6",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*",
                    "matchCriteriaId": "2B547525-E0DB-4D64-8ED1-AF3F1B6FF65F",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "19064C18-1CD7-4F10-8065-4B900BB31F83",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*",
                    "matchCriteriaId": "B1997CB6-FD72-4B13-915A-7500AA06F4B1",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:3.2:*:*:*:*:*:*:*",
                    "matchCriteriaId": "87845E79-F4A3-4390-9ACF-A14E86BCDB10",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:*",
                    "matchCriteriaId": "E2C8F3C4-91AB-4AE3-A2FB-A093F97742FD",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs."
          },
          {
            "lang": "es",
            "value": "Los m\u00f3dulos urllib y urllib2 en Python v2.x anteriores a v2.7.2 y v3.x anteriores a v3.2.1 procesan los encabezados de ubicaci\u00f3n que especificar la redirecci\u00f3n del fichero: URLs, lo que hace que sea m\u00e1s f\u00e1cil para los atacantes remotos obtener informaci\u00f3n sensible o provocar una denegaci\u00f3n de servicio (consumo de recursos) a trav\u00e9s de una URL manipulada, como lo demuestra lso ficheros URLs: //etc/passwd y //dev/zero."
          }
        ],
        "id": "CVE-2011-1521",
        "lastModified": "2026-04-29T01:13:23.040",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 6.4,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 4.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ]
        },
        "published": "2011-05-24T23:55:02.840",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch"
            ],
            "url": "http://bugs.python.org/issue11662"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch"
            ],
            "url": "http://hg.python.org/cpython/rev/96a6c128822b/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch"
            ],
            "url": "http://hg.python.org/cpython/rev/b2934d98dac1/"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://openwall.com/lists/oss-security/2011/03/24/5"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://openwall.com/lists/oss-security/2011/03/28/2"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://openwall.com/lists/oss-security/2011/09/11/1"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://openwall.com/lists/oss-security/2011/09/13/2"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://openwall.com/lists/oss-security/2011/09/15/5"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/50858"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/51024"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/51040"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://securitytracker.com/id?1025488"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://support.apple.com/kb/HT5002"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:096"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ubuntu.com/usn/USN-1592-1"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ubuntu.com/usn/USN-1596-1"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ubuntu.com/usn/USN-1613-1"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ubuntu.com/usn/USN-1613-2"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=690560"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737366"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.djangoproject.com/weblog/2011/sep/09/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.djangoproject.com/weblog/2011/sep/10/127/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://bugs.python.org/issue11662"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://hg.python.org/cpython/rev/96a6c128822b/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "http://hg.python.org/cpython/rev/b2934d98dac1/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://openwall.com/lists/oss-security/2011/03/24/5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://openwall.com/lists/oss-security/2011/03/28/2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://openwall.com/lists/oss-security/2011/09/11/1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://openwall.com/lists/oss-security/2011/09/13/2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://openwall.com/lists/oss-security/2011/09/15/5"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/50858"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/51024"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/51040"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://securitytracker.com/id?1025488"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://support.apple.com/kb/HT5002"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:096"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1592-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1596-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1613-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-1613-2"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Patch"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=690560"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737366"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.djangoproject.com/weblog/2011/sep/09/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.djangoproject.com/weblog/2011/sep/10/127/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-399"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-27T15:18:59+00:00",
      "cve": "CVE-2011-1521",
      "id": "CVE-2011-1521",
      "initial_release_date": "2011-03-24T00:00:00+00:00",
      "product_status:fixed": "224",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "urllib2): Improper management of ftp:// and file:// URL schemes (Issue #11662)",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-1521.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-26T01:52:23Z",
      "cve": "CVE-2011-1521",
      "id": "CVE-2011-1521",
      "initial_release_date": "2023-02-15T05:53:37Z",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "2",
      "product_status:recommended": "521",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2011-1521",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2011-1521.json",
      "version": "14"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.