gsd-2021-23336
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2021-23336",
    "description": "The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.",
    "id": "GSD-2021-23336",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-23336.html",
      "https://access.redhat.com/errata/RHSA-2021:4162",
      "https://access.redhat.com/errata/RHSA-2021:4151",
      "https://access.redhat.com/errata/RHSA-2021:3254",
      "https://access.redhat.com/errata/RHSA-2021:3252",
      "https://access.redhat.com/errata/RHSA-2021:1633",
      "https://ubuntu.com/security/CVE-2021-23336",
      "https://advisories.mageia.org/CVE-2021-23336.html",
      "https://security.archlinux.org/CVE-2021-23336",
      "https://alas.aws.amazon.com/cve/html/CVE-2021-23336.html",
      "https://linux.oracle.com/cve/CVE-2021-23336.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-23336"
      ],
      "details": "The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.",
      "id": "GSD-2021-23336",
      "modified": "2023-12-13T01:23:30.134155Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "report@snyk.io",
        "DATE_PUBLIC": "2021-02-15T12:12:19.012177Z",
        "ID": "CVE-2021-23336",
        "STATE": "PUBLIC",
        "TITLE": "Web Cache Poisoning"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "python/cpython",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003e=",
                          "version_value": "0"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "3.6.13"
                        },
                        {
                          "version_affected": "\u003e=",
                          "version_value": "3.7.0"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "3.7.10"
                        },
                        {
                          "version_affected": "\u003e=",
                          "version_value": "3.8.0"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "3.8.8"
                        },
                        {
                          "version_affected": "\u003e=",
                          "version_value": "3.9.0"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_value": "3.9.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Snyk Security Team"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H/E:P/RL:U/RC:C",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
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              {
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                "value": "Web Cache Poisoning"
              }
            ]
          }
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      },
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            "name": "https://snyk.io/vuln/SNYK-UPSTREAM-PYTHONCPYTHON-1074933",
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            "url": "https://github.com/python/cpython/pull/24297"
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          {
            "name": "https://www.oracle.com/security-alerts/cpuApr2021.html",
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            "name": "[debian-lts-announce] 20230920 [SECURITY] [DLA 3575-1] python2.7 security update",
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=2.2,\u003c2.2.19||\u003e=3.0,\u003c3.0.13||\u003e=3.1,\u003c3.1.7",
          "affected_versions": "All versions starting from 2.2 before 2.2.19, all versions starting from 3.0 before 3.0.13, all versions starting from 3.1 before 3.1.7",
          "cvss_v2": "AV:N/AC:H/Au:N/C:N/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-444",
            "CWE-937"
          ],
          "date": "2022-03-04",
          "description": "When the attacker can separate query parameters using a semicolon (`;`), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter.",
          "fixed_versions": [
            "2.2.19",
            "3.0.13",
            "3.1.7"
          ],
          "identifier": "CVE-2021-23336",
          "identifiers": [
            "CVE-2021-23336"
          ],
          "not_impacted": "All versions before 2.2, all versions starting from 2.2.19 before 3.0, all versions starting from 3.0.13 before 3.1, all versions starting from 3.1.7",
          "package_slug": "pypi/Django",
          "pubdate": "2021-02-15",
          "solution": "Upgrade to versions 2.2.19, 3.0.13, 3.1.7 or above.",
          "title": "Inconsistent Interpretation of HTTP Requests (HTTP Request Smuggling)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-23336"
          ],
          "uuid": "449767c6-4b64-41f7-bdeb-7eae216d0671"
        }
      ]
    },
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                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:oracle:communications_pricing_design_center:12.0.0.3.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "report@snyk.io",
          "ID": "CVE-2021-23336"
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        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "en",
              "value": "The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs by using a vector called parameter cloaking. When the attacker can separate query parameters using a semicolon (;), they can cause a difference in the interpretation of the request between the proxy (running with default configuration) and the server. This can result in malicious requests being cached as completely safe ones, as the proxy would usually not see the semicolon as a separator, and therefore would not include it in a cache key of an unkeyed parameter."
            }
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              "refsource": "MLIST",
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              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/46N6A52EGSXHJYCZWVMBJJIH4NWIV2B5/"
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            {
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            {
              "name": "[announce] 20210501 Apache Airflow CVE: CVE-2021-28359: Apache Airflow Reflected XSS via Origin Query Argument in URL",
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              "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
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            {
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            {
              "name": "[debian-lts-announce] 20230920 [SECURITY] [DLA 3575-1] python2.7 security update",
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              "tags": [],
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "HIGH",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:H/Au:N/C:N/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 4.9,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 4.2
        }
      },
      "lastModifiedDate": "2023-09-20T22:15Z",
      "publishedDate": "2021-02-15T13:15Z"
    }
  }
}


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