GHSA-JM6M-4632-36HF

Vulnerability from github – Published: 2023-09-29 20:39 – Updated: 2025-02-13 19:15
VLAI
Summary
Composer Remote Code Execution vulnerability via web-accessible composer.phar
Details

Impact

Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be impacted if PHP also has register_argc_argv enabled in php.ini.

Patches

2.6.4, 2.2.22 and 1.10.27 patch this vulnerability.

Workarounds

Make sure register_argc_argv is disabled in php.ini, and avoid publishing composer.phar to the web as this really should not happen.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "composer/composer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.10.27"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "composer/composer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.2.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "composer/composer"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.3.0"
            },
            {
              "fixed": "2.6.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-43655"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-74"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-09-29T20:39:21Z",
    "nvd_published_at": "2023-09-29T20:15:09Z",
    "severity": "HIGH"
  },
  "details": "### Impact\n\nUsers publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be impacted if PHP also has `register_argc_argv` enabled in php.ini.\n\n### Patches\n\n2.6.4, 2.2.22 and 1.10.27 patch this vulnerability.\n\n### Workarounds\n\nMake sure `register_argc_argv` is disabled in php.ini, and avoid publishing composer.phar to the web as this really should not happen.",
  "id": "GHSA-jm6m-4632-36hf",
  "modified": "2025-02-13T19:15:08Z",
  "published": "2023-09-29T20:39:21Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43655"
    },
    {
      "type": "WEB",
      "url": "https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d"
    },
    {
      "type": "WEB",
      "url": "https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/composer/composer"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Composer Remote Code Execution vulnerability via web-accessible composer.phar"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.



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