CVE-2023-43655 (GCVE-0-2023-43655)

Vulnerability from cvelistv5 – Published: 2023-09-29 19:33 – Updated: 2025-06-18 13:59
VLAI?
Title
Remote Code Execution via web-accessible composer.phar
Summary
Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be subject to a remote code execution vulnerability if PHP also has `register_argc_argv` enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27 patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure `register_argc_argv` is disabled in php.ini, and avoid publishing composer.phar to the web as this is not best practice.
Severity ?
6.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Assigner
References
Impacted products
Vendor Product Version
composer composer Affected: 2.6.4, 2.2.21, 1.10.27
Affected: >= 2.0, < 2.2.22
Affected: < 1.10.27
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T19:44:43.787Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf"
          },
          {
            "name": "https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d"
          },
          {
            "name": "https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c"
          },
          {
            "name": "https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:docker:composer:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "composer",
            "vendor": "docker",
            "versions": [
              {
                "lessThanOrEqual": "2.6.4",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-43655",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-23T16:22:54.194704Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-18T13:59:58.568Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "composer",
          "vendor": "composer",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.4, 2.2.21, 1.10.27"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0, \u003c 2.2.22"
            },
            {
              "status": "affected",
              "version": "\u003c 1.10.27"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be subject to a remote code execution vulnerability if PHP also has `register_argc_argv` enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27 patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure `register_argc_argv` is disabled in php.ini, and avoid publishing composer.phar to the web as this is not best practice."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-74",
              "description": "CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-03-27T10:05:55.605Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf"
        },
        {
          "name": "https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d"
        },
        {
          "name": "https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c"
        },
        {
          "name": "https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2/"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE/"
        },
        {
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG/"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html"
        }
      ],
      "source": {
        "advisory": "GHSA-jm6m-4632-36hf",
        "discovery": "UNKNOWN"
      },
      "title": "Remote Code Execution via web-accessible composer.phar"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-43655",
    "datePublished": "2023-09-29T19:33:32.183Z",
    "dateReserved": "2023-09-20T15:35:38.147Z",
    "dateUpdated": "2025-06-18T13:59:58.568Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf\", \"name\": \"https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}, {\"url\": \"https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d\", \"name\": \"https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c\", \"name\": \"https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c\", \"name\": \"https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T19:44:43.787Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-43655\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-23T16:22:54.194704Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:docker:composer:-:*:*:*:*:*:*:*\"], \"vendor\": \"docker\", \"product\": \"composer\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"2.6.4\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-23T16:24:58.786Z\"}}], \"cna\": {\"title\": \"Remote Code Execution via web-accessible composer.phar\", \"source\": {\"advisory\": \"GHSA-jm6m-4632-36hf\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6.4, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"composer\", \"product\": \"composer\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.4, 2.2.21, 1.10.27\"}, {\"status\": \"affected\", \"version\": \"\u003e= 2.0, \u003c 2.2.22\"}, {\"status\": \"affected\", \"version\": \"\u003c 1.10.27\"}]}], \"references\": [{\"url\": \"https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf\", \"name\": \"https://github.com/composer/composer/security/advisories/GHSA-jm6m-4632-36hf\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d\", \"name\": \"https://github.com/composer/composer/commit/4fce14795aba98e40b6c4f5047305aba17a6120d\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c\", \"name\": \"https://github.com/composer/composer/commit/955a48e6319c8962e5cd421b07c00ab3c728968c\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c\", \"name\": \"https://github.com/composer/composer/commit/95e091c921037b7b6564942845e7b738f6b95c9c\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KFOPGPW2KS37O3KJWBRGTUWHTXCQXBS2/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7AWYAUZNH565NWPIKGEIYBWHYNM5JGAE/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/66H2WKFUO255T3BZTL72TNYJYH2XM5FG/\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/03/msg00030.html\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Composer is a dependency manager for PHP. Users publishing a composer.phar to a public web-accessible server where the composer.phar can be executed as a php file may be subject to a remote code execution vulnerability if PHP also has `register_argc_argv` enabled in php.ini. Versions 2.6.4, 2.2.22 and 1.10.27 patch this vulnerability. Users are advised to upgrade. Users unable to upgrade should make sure `register_argc_argv` is disabled in php.ini, and avoid publishing composer.phar to the web as this is not best practice.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-74\", \"description\": \"CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component (\u0027Injection\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2024-03-27T10:05:55.605Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-43655\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-06-18T13:59:58.568Z\", \"dateReserved\": \"2023-09-20T15:35:38.147Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2023-09-29T19:33:32.183Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.