pysec - pysec-2018-51

PYSEC-2018-51

Vulnerability from pysec - Published: 2018-03-07 23:29 - Updated: 2021-07-15 02:22

Details

An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren't properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide through unsanitized.

Impacted products

Name	purl
bleach	pkg:pypi/bleach

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "bleach",
        "purl": "pkg:pypi/bleach"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "c5df5789ec3471a31311f42c2d19fc2cf21b35ef"
            }
          ],
          "repo": "https://github.com/mozilla/bleach",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "2.1"
            },
            {
              "fixed": "2.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.1",
        "2.1.1",
        "2.1.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2018-7753",
    "GHSA-m9mq-p2f9-cfqv"
  ],
  "details": "An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren\u0027t properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide through unsanitized.",
  "id": "PYSEC-2018-51",
  "modified": "2021-07-15T02:22:07.141398Z",
  "published": "2018-03-07T23:29:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mozilla/bleach/releases/tag/v2.1.3"
    },
    {
      "type": "FIX",
      "url": "https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/892252"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-m9mq-p2f9-cfqv"
    }
  ]
}

GHSA-M9MQ-P2F9-CFQV

Vulnerability from github – Published: 2019-01-04 17:46 – Updated: 2024-09-04 19:41

Summary

Bleach URI Scheme Restriction Bypass

Details

Severity ?

9.8 (Critical)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "bleach"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.1.0"
            },
            {
              "fixed": "2.1.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2018-7753"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-06-16T21:45:43Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren\u0027t properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide through unsanitized.",
  "id": "GHSA-m9mq-p2f9-cfqv",
  "modified": "2024-09-04T19:41:50Z",
  "published": "2019-01-04T17:46:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7753"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/892252"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mozilla/bleach"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mozilla/bleach/releases/tag/v2.1.3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/bleach/PYSEC-2018-51.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Bleach URI Scheme Restriction Bypass"
}

CVE-2018-7753 (GCVE-0-2018-7753)

Vulnerability from cvelistv5 – Published: 2018-03-07 23:00 – Updated: 2024-09-17 01:25

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/mozilla/bleach/releases/tag/v2.1.3	x_refsource_MISC
	https://github.com/mozilla/bleach/commit/c5df5789…	x_refsource_MISC
	https://bugs.debian.org/892252	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T06:37:59.183Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/mozilla/bleach/releases/tag/v2.1.3"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bugs.debian.org/892252"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren\u0027t properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide through unsanitized."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-03-07T23:00:00Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mozilla/bleach/releases/tag/v2.1.3"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bugs.debian.org/892252"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2018-7753",
          "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": "An issue was discovered in Bleach 2.1.x before 2.1.3. Attributes that have URI values weren\u0027t properly sanitized if the values contained character entities. Using character entities, it was possible to construct a URI value with a scheme that was not allowed that would slide through unsanitized."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/mozilla/bleach/releases/tag/v2.1.3",
              "refsource": "MISC",
              "url": "https://github.com/mozilla/bleach/releases/tag/v2.1.3"
            },
            {
              "name": "https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef",
              "refsource": "MISC",
              "url": "https://github.com/mozilla/bleach/commit/c5df5789ec3471a31311f42c2d19fc2cf21b35ef"
            },
            {
              "name": "https://bugs.debian.org/892252",
              "refsource": "MISC",
              "url": "https://bugs.debian.org/892252"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2018-7753",
    "datePublished": "2018-03-07T23:00:00Z",
    "dateReserved": "2018-03-07T00:00:00Z",
    "dateUpdated": "2024-09-17T01:25:52.866Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

PYSEC-2018-51

GHSA-M9MQ-P2F9-CFQV

CVE-2018-7753 (GCVE-0-2018-7753)

Tags

Sightings

Nomenclature