FKIE_CVE-2023-49291

Vulnerability from fkie_nvd - Published: 2023-12-05 00:15 - Updated: 2024-11-21 08:33
Severity ?
9.3 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
tj-actions/branch-names is a Github action to retrieve branch or tag names with support for all events. The `tj-actions/branch-names` GitHub Actions improperly references the `github.event.pull_request.head.ref` and `github.head_ref` context variables within a GitHub Actions `run` step. The head ref variable is the branch name and can be used to execute arbitrary code using a specially crafted branch name. As a result an attacker can use this vulnerability to steal secrets from or abuse `GITHUB_TOKEN` permissions. This vulnerability has been addressed in version 7.0.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
References
security-advisories@github.comhttps://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337Patch
security-advisories@github.comhttps://github.com/tj-actions/branch-names/commit/6c999acf206f5561e19f46301bb310e9e70d8815Patch
security-advisories@github.comhttps://github.com/tj-actions/branch-names/commit/726fe9ba5e9da4fcc716223b7994ffd0358af060Patch
security-advisories@github.comhttps://github.com/tj-actions/branch-names/security/advisories/GHSA-8v8w-v8xg-79rfExploit, Vendor Advisory
security-advisories@github.comhttps://securitylab.github.com/research/github-actions-untrusted-inputExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/tj-actions/branch-names/commit/6c999acf206f5561e19f46301bb310e9e70d8815Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/tj-actions/branch-names/commit/726fe9ba5e9da4fcc716223b7994ffd0358af060Patch
af854a3a-2127-422b-91ae-364da2661108https://github.com/tj-actions/branch-names/security/advisories/GHSA-8v8w-v8xg-79rfExploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://securitylab.github.com/research/github-actions-untrusted-inputExploit, Third Party Advisory
Impacted products
Vendor Product Version
tj-actions branch-names *
tj-actions branch-names *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tj-actions:branch-names:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4AB0A58B-E056-49E3-9CD4-063AF78D1ECB",
              "versionEndExcluding": "7.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:tj-actions:branch-names:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "04A7066A-CDAB-4C39-AD1F-87ADAF23495A",
              "versionEndExcluding": "7.0.7",
              "versionStartIncluding": "7.0.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "tj-actions/branch-names is a Github action to retrieve branch or tag names with support for all events. The `tj-actions/branch-names` GitHub Actions improperly references the `github.event.pull_request.head.ref` and `github.head_ref` context variables within a GitHub Actions `run` step. The head ref variable is the branch name and can be used to execute arbitrary code using a specially crafted branch name. As a result an attacker can use this vulnerability to steal secrets from or abuse `GITHUB_TOKEN` permissions. This vulnerability has been addressed in version 7.0.7. Users are advised to upgrade. There are no known workarounds for this vulnerability."
    },
    {
      "lang": "es",
      "value": "tj-actions/branch-names es una acci\u00f3n de Github para recuperar nombres de ramas o etiquetas con soporte para todos los eventos. Las GitHub Actions `tj-actions/branch-names` hacen referencia incorrectamente a las variables de contexto `github.event.pull_request.head.ref` y `github.head_ref` dentro de un paso de `ejecuci\u00f3n` de GitHub Actions. La variable head ref es el nombre de la rama y se puede usar para ejecutar c\u00f3digo arbitrario usando un nombre de rama especialmente manipulado. Como resultado, un atacante puede utilizar esta vulnerabilidad para robar secretos o abusar de los permisos \"GITHUB_TOKEN\". Esta vulnerabilidad se ha solucionado en la versi\u00f3n 7.0.7. Se recomienda a los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad."
    }
  ],
  "id": "CVE-2023-49291",
  "lastModified": "2024-11-21T08:33:12.027",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "LOW",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 4.7,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2023-12-05T00:15:09.403",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/tj-actions/branch-names/commit/6c999acf206f5561e19f46301bb310e9e70d8815"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/tj-actions/branch-names/commit/726fe9ba5e9da4fcc716223b7994ffd0358af060"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Vendor Advisory"
      ],
      "url": "https://github.com/tj-actions/branch-names/security/advisories/GHSA-8v8w-v8xg-79rf"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://securitylab.github.com/research/github-actions-untrusted-input"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/tj-actions/branch-names/commit/4923d1ca41f928c24f1c1b3af9daaadfb71e6337"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/tj-actions/branch-names/commit/6c999acf206f5561e19f46301bb310e9e70d8815"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/tj-actions/branch-names/commit/726fe9ba5e9da4fcc716223b7994ffd0358af060"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Vendor Advisory"
      ],
      "url": "https://github.com/tj-actions/branch-names/security/advisories/GHSA-8v8w-v8xg-79rf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://securitylab.github.com/research/github-actions-untrusted-input"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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