github - ghsa-x87g-4c45-mvv5

ghsa-x87g-4c45-mvv5

Vulnerability from github

Published

2022-05-24 17:43

Modified

2022-10-25 19:00

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Details

An improper access control vulnerability was identified in GitHub Enterprise Server that allowed authenticated users of the instance to gain write access to unauthorized repositories via specifically crafted pull requests and REST API requests. An attacker would need to be able to fork the targeted repository, a setting that is disabled by default for organization owned private repositories. Branch protections such as required pull request reviews or status checks would prevent unauthorized commits from being merged without further review or validation. This vulnerability affected all versions of GitHub Enterprise Server since 2.4.21 and was fixed in versions 2.20.24, 2.21.15, 2.22.7 and 3.0.1. This vulnerability was reported via the GitHub Bug Bounty program.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-22861"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-03-03T04:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An improper access control vulnerability was identified in GitHub Enterprise Server that allowed authenticated users of the instance to gain write access to unauthorized repositories via specifically crafted pull requests and REST API requests. An attacker would need to be able to fork the targeted repository, a setting that is disabled by default for organization owned private repositories. Branch protections such as required pull request reviews or status checks would prevent unauthorized commits from being merged without further review or validation. This vulnerability affected all versions of GitHub Enterprise Server since 2.4.21 and was fixed in versions 2.20.24, 2.21.15, 2.22.7 and 3.0.1. This vulnerability was reported via the GitHub Bug Bounty program.",
  "id": "GHSA-x87g-4c45-mvv5",
  "modified": "2022-10-25T19:00:36Z",
  "published": "2022-05-24T17:43:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22861"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@2.20/admin/release-notes#2.20.24"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@2.21/admin/release-notes#2.21.15"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@2.22/admin/release-notes#2.22.7"
    },
    {
      "type": "WEB",
      "url": "https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2021-22861

Vulnerability from cvelistv5

Published

2021-03-03 03:25

Modified

2024-08-03 18:51

Severity ?

Summary

Improper access control in GitHub Enterprise Server leading to unauthorized write access to forkable repositories

References

▼	URL	Tags
	https://docs.github.com/en/enterprise-server%402.20/admin/release-notes#2.20.24	x_refsource_MISC
	https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.15	x_refsource_MISC
	https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.7	x_refsource_MISC
	https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.1	x_refsource_MISC

Impacted products

▼	Vendor	Product
	GitHub	GitHub Enterprise Server

Show details on NVD website

JSON

To clipboard

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  "containers": {
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              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server%402.20/admin/release-notes#2.20.24"
          },
          {
            "tags": [
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            ],
            "url": "https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.15"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.7"
          },
          {
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.1"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
      "affected": [
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          "product": "GitHub Enterprise Server",
          "vendor": "GitHub",
          "versions": [
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              "lessThan": "2.20.24",
              "status": "affected",
              "version": "2.20",
              "versionType": "custom"
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              "status": "affected",
              "version": "2.21",
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            },
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              "lessThan": "2.22.7",
              "status": "affected",
              "version": "2.22",
              "versionType": "custom"
            },
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              "lessThan": "3.0.1",
              "status": "affected",
              "version": "3.0",
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      ],
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      ],
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        }
      ],
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-03T03:25:21",
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      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Improper access control in GitHub Enterprise Server leading to unauthorized write access to forkable repositories",
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        },
        "affects": {
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                          },
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            },
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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