Vulnerability-Lookup

GHSA-2XWJ-G27R-P9CR

Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2022-10-25 19:00

Details

An improper access control vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with the ability to fork a repository to disclose Actions secrets for the parent repository of the fork. This vulnerability existed due to a flaw that allowed the base reference of a pull request to be updated to point to an arbitrary SHA or another pull request outside of the fork repository. By establishing this incorrect reference in a PR, the restrictions that limit the Actions secrets sent a workflow from forks could be bypassed. This vulnerability affected GitHub Enterprise Server version 3.0.0, 3.0.0.rc2, and 3.0.0.rc1. This vulnerability was reported via the GitHub Bug Bounty program.

Severity ?

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2021-22862"
  ],
  "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 an authenticated user with the ability to fork a repository to disclose Actions secrets for the parent repository of the fork. This vulnerability existed due to a flaw that allowed the base reference of a pull request to be updated to point to an arbitrary SHA or another pull request outside of the fork repository. By establishing this incorrect reference in a PR, the restrictions that limit the Actions secrets sent a workflow from forks could be bypassed. This vulnerability affected GitHub Enterprise Server version 3.0.0, 3.0.0.rc2, and 3.0.0.rc1. This vulnerability was reported via the GitHub Bug Bounty program.",
  "id": "GHSA-2xwj-g27r-p9cr",
  "modified": "2022-10-25T19:00:35Z",
  "published": "2022-05-24T17:43:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-22862"
    },
    {
      "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:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-22862 (GCVE-0-2021-22862)

Vulnerability from cvelistv5 – Published: 2021-03-03 03:25 – Updated: 2024-08-03 18:51

Title

Improper access control in GitHub Enterprise Server leading to the disclosure of Actions secrets to forks

Summary

Severity ?

No CVSS data available.

CWE

CWE-285 - Improper Authorization

Assigner

GitHub_P

References

URL

Tags

https://docs.github.com/en/enterprise-server%403.…

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	GitHub	GitHub Enterprise Server	Affected: 3.0 , < 3.0.1 (custom)

Credits

Teddy Katz

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:51:07.479Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "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"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "GitHub Enterprise Server",
          "vendor": "GitHub",
          "versions": [
            {
              "lessThan": "3.0.1",
              "status": "affected",
              "version": "3.0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Teddy Katz"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An improper access control vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with the ability to fork a repository to disclose Actions secrets for the parent repository of the fork. This vulnerability existed due to a flaw that allowed the base reference of a pull request to be updated to point to an arbitrary SHA or another pull request outside of the fork repository. By establishing this incorrect reference in a PR, the restrictions that limit the Actions secrets sent a workflow from forks could be bypassed. This vulnerability affected GitHub Enterprise Server version 3.0.0, 3.0.0.rc2, and 3.0.0.rc1. This vulnerability was reported via the GitHub Bug Bounty program."
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "description": "CWE-285: Improper Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-03T03:25:22",
        "orgId": "82327ea3-741d-41e4-88f8-2cf9e791e760",
        "shortName": "GitHub_P"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.1"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Improper access control in GitHub Enterprise Server leading to the disclosure of Actions secrets to forks",
      "x_legacyV4Record": {
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          "ID": "CVE-2021-22862",
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        },
        "affects": {
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                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
                            "version_name": "3.0",
                            "version_value": "3.0.1"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "GitHub"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Teddy Katz"
          }
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        "data_format": "MITRE",
        "data_type": "CVE",
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            }
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        },
        "problemtype": {
          "problemtype_data": [
            {
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                  "value": "CWE-285: Improper Authorization"
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        },
        "references": {
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            {
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              "refsource": "MISC",
              "url": "https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.1"
            }
          ]
        },
        "source": {
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        }
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "82327ea3-741d-41e4-88f8-2cf9e791e760",
    "assignerShortName": "GitHub_P",
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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

GHSA-2XWJ-G27R-P9CR

CVE-2021-22862 (GCVE-0-2021-22862)

Tags

Sightings

Nomenclature