github - ghsa-jwcm-9g39-pmcw

ghsa-jwcm-9g39-pmcw

Vulnerability from github

Published

2024-11-27 21:43

Modified

2024-12-02 18:03

Severity ?

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

Summary

Recursive repository cloning can leak authentication tokens to non-GitHub submodule hosts

Details

Summary

A security vulnerability has been identified in the GitHub CLI that could leak authentication tokens when cloning repositories containing git submodules hosted outside of GitHub.com and ghe.com.

Details

This vulnerability stems from several gh commands used to clone a repository with submodules from a non-GitHub host including gh repo clone, gh repo fork, gh pr checkout. These GitHub CLI commands invoke git with instructions to retrieve authentication tokens using the credential.helper configuration variable for any host encountered.

Prior to 2.63.0, hosts other than GitHub.com and ghe.com are treated as GitHub Enterprise Server hosts and have tokens sourced from the following environment variables before falling back to host-specific tokens stored within system-specific secured storage:

GITHUB_ENTERPRISE_TOKEN
GH_ENTERPRISE_TOKEN
GITHUB_TOKEN when CODESPACES environment variable is set

The result being git sending authentication tokens when cloning submodules.

In 2.63.0, these GitHub CLI commands will limit the hosts for which gh acts as a credential helper to source authentication tokens. Additionally, GITHUB_TOKEN will only be used for GitHub.com and ghe.com.

Impact

Successful exploitation could lead to a third-party using leaked authentication tokens to access privileged resources.

Remediation and mitigation

Upgrade gh to 2.63.0
Revoke authentication tokens used with the GitHub CLI:
- Personal access tokens
- GitHub CLI OAuth app
Review your personal security log and any relevant audit logs for actions associated with your account or enterprise

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.62.0"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/cli/cli/v2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.63.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-53858"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-11-27T21:43:05Z",
    "nvd_published_at": "2024-11-27T22:15:05Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nA security vulnerability has been identified in the GitHub CLI that could leak authentication tokens when cloning repositories containing `git` submodules hosted outside of GitHub.com and ghe.com.\n\n### Details\n\nThis vulnerability stems from several `gh` commands used to clone a repository with submodules from a non-GitHub host including `gh repo clone`, `gh repo fork`, `gh pr checkout`. These GitHub CLI commands invoke `git` with instructions to retrieve authentication tokens using the [`credential.helper`](https://git-scm.com/docs/gitcredentials) configuration variable for any host encountered.\n\nPrior to `2.63.0`, hosts other than GitHub.com and ghe.com are treated as GitHub Enterprise Server hosts and have tokens sourced from the following environment variables before falling back to host-specific tokens stored within system-specific secured storage:\n\n- `GITHUB_ENTERPRISE_TOKEN`\n- `GH_ENTERPRISE_TOKEN`\n- `GITHUB_TOKEN` _when `CODESPACES` environment variable is set_\n\nThe result being `git` sending authentication tokens when cloning submodules.\n\nIn `2.63.0`, these GitHub CLI commands will limit the hosts for which `gh` acts as a credential helper to source authentication tokens. Additionally, `GITHUB_TOKEN` will only be used for GitHub.com and ghe.com.\n\n### Impact\n\nSuccessful exploitation could lead to a third-party using leaked authentication tokens to access privileged resources.\n\n### Remediation and mitigation\n\n1. Upgrade `gh` to `2.63.0`\n2. Revoke authentication tokens used with the GitHub CLI: \n    - [Personal access tokens](https://docs.github.com/en/enterprise-cloud@latest/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens)\n    - [GitHub CLI OAuth app](https://docs.github.com/en/apps/using-github-apps/reviewing-and-revoking-authorization-of-github-apps#reviewing-your-authorized-github-apps)\n3. Review your personal [security log](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/reviewing-your-security-log) and any relevant [audit logs](https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/identifying-audit-log-events-performed-by-an-access-token) for actions associated with your account or enterprise",
  "id": "GHSA-jwcm-9g39-pmcw",
  "modified": "2024-12-02T18:03:39Z",
  "published": "2024-11-27T21:43:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/cli/cli/security/advisories/GHSA-jwcm-9g39-pmcw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53858"
    },
    {
      "type": "WEB",
      "url": "https://git-scm.com/docs/gitcredentials"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/cli/cli"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Recursive repository cloning can leak authentication tokens to non-GitHub submodule hosts"
}

cve-2024-53858

Vulnerability from cvelistv5

Published

2024-11-27 21:25

Modified

2024-12-03 15:04

Severity ?

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

Summary

The gh cli is GitHub’s official command line tool. A security vulnerability has been identified in the GitHub CLI that could leak authentication tokens when cloning repositories containing `git` submodules hosted outside of GitHub.com and ghe.com. This vulnerability stems from several `gh` commands used to clone a repository with submodules from a non-GitHub host including `gh repo clone`, `gh repo fork`, and `gh pr checkout`. These GitHub CLI commands invoke git with instructions to retrieve authentication tokens using the `credential.helper` configuration variable for any host encountered. Prior to version `2.63.0`, hosts other than GitHub.com and ghe.com are treated as GitHub Enterprise Server hosts and have tokens sourced from the following environment variables before falling back to host-specific tokens stored within system-specific secured storage: 1. `GITHUB_ENTERPRISE_TOKEN`, 2. `GH_ENTERPRISE_TOKEN` and 3. `GITHUB_TOKEN` when the `CODESPACES` environment variable is set. The result being `git` sending authentication tokens when cloning submodules. In version `2.63.0`, these GitHub CLI commands will limit the hosts for which `gh` acts as a credential helper to source authentication tokens. Additionally, `GITHUB_TOKEN` will only be used for GitHub.com and ghe.com. Users are advised to upgrade. Additionally users are advised to revoke authentication tokens used with the GitHub CLI and to review their personal security log and any relevant audit logs for actions associated with their account or enterprise

References

▼	URL	Tags
	https://github.com/cli/cli/security/advisories/GHSA-jwcm-9g39-pmcw	x_refsource_CONFIRM
	https://git-scm.com/docs/gitcredentials	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

cli

Version: < 2.63.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:github:cli:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "cli",
            "vendor": "github",
            "versions": [
              {
                "lessThan": "2.63.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-53858",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-12-03T15:02:11.542915Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-12-03T15:04:45.637Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "cli",
          "vendor": "cli",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.63.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The gh cli is GitHub\u2019s official command line tool. A security vulnerability has been identified in the GitHub CLI that could leak authentication tokens when cloning repositories containing `git` submodules hosted outside of GitHub.com and ghe.com. This vulnerability stems from several `gh` commands used to clone a repository with submodules from a non-GitHub host including `gh repo clone`, `gh repo fork`, and `gh pr checkout`. These GitHub CLI commands invoke git with instructions to retrieve authentication tokens using the `credential.helper` configuration variable for any host encountered. Prior to version `2.63.0`, hosts other than GitHub.com and ghe.com are treated as GitHub Enterprise Server hosts and have tokens sourced from the following environment variables before falling back to host-specific tokens stored within system-specific secured storage: 1. `GITHUB_ENTERPRISE_TOKEN`, 2. `GH_ENTERPRISE_TOKEN` and 3. `GITHUB_TOKEN` when the `CODESPACES` environment variable is set. The result being `git` sending authentication tokens when cloning submodules. In version `2.63.0`, these GitHub CLI commands will limit the hosts for which `gh` acts as a credential helper to source authentication tokens. Additionally, `GITHUB_TOKEN` will only be used for GitHub.com and ghe.com. Users are advised to upgrade. Additionally users are advised to revoke authentication tokens used with the GitHub CLI and to review their personal security log and any relevant audit logs for actions associated with their account or enterprise"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-27T21:25:14.071Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/cli/cli/security/advisories/GHSA-jwcm-9g39-pmcw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/cli/cli/security/advisories/GHSA-jwcm-9g39-pmcw"
        },
        {
          "name": "https://git-scm.com/docs/gitcredentials",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://git-scm.com/docs/gitcredentials"
        }
      ],
      "source": {
        "advisory": "GHSA-jwcm-9g39-pmcw",
        "discovery": "UNKNOWN"
      },
      "title": "Recursive repository cloning can leak authentication tokens to non-GitHub submodule hosts in the gh cli"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-53858",
    "datePublished": "2024-11-27T21:25:14.071Z",
    "dateReserved": "2024-11-22T17:30:02.143Z",
    "dateUpdated": "2024-12-03T15:04:45.637Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Action not permitted

ghsa-jwcm-9g39-pmcw

Vulnerability from github

Summary

Details

Impact

Remediation and mitigation

cve-2024-53858

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature