github - ghsa-4wxh-fpjf-c8wf

GHSA-4WXH-FPJF-C8WF

Vulnerability from github – Published: 2023-12-08 21:30 – Updated: 2024-05-08 00:31

Details

An issue was found in CPython 3.12.0 subprocess module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases.

When using the extra_groups= parameter with an empty list as a value (ie extra_groups=[]) the logic regressed to not call setgroups(0, NULL) before calling exec(), thus not dropping the original processes' groups before starting the new process. There is no issue when the parameter isn't used or when any value is used besides an empty list.

This issue only impacts CPython processes run with sufficient privilege to make the setgroups system call (typically root).

Severity ?

6.1 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2023-6507"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-12-08T19:15:08Z",
    "severity": "MODERATE"
  },
  "details": "An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases.\n\nWhen using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes\u0027 groups before starting the new process. There is no issue when the parameter isn\u0027t used or when any value is used besides an empty list.\n\nThis issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).\n\n",
  "id": "GHSA-4wxh-fpjf-c8wf",
  "modified": "2024-05-08T00:31:12Z",
  "published": "2023-12-08T21:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6507"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/issues/112334"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/pull/112617"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06"
    },
    {
      "type": "WEB",
      "url": "https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610"
    },
    {
      "type": "WEB",
      "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2023-6507 (GCVE-0-2023-6507)

Vulnerability from cvelistv5 – Published: 2023-12-08 18:20 – Updated: 2024-08-02 08:35

Summary

An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases. When using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes' groups before starting the new process. There is no issue when the parameter isn't used or when any value is used besides an empty list. This issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).

Severity ?

6.1 (Medium)


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

CWE

CWE-269 - Improper Privilege Management

Assigner

PSF

References

URL

Tags

	https://github.com/python/cpython/issues/112334	issue-tracking
	https://mail.python.org/archives/list/security-an…	vendor-advisory
	https://github.com/python/cpython/commit/9fe7655c…	patch
	https://github.com/python/cpython/commit/10e9bb13…	patch
	https://github.com/python/cpython/commit/85bbfa8a…	patch

Impacted products

	Vendor	Product	Version
	Python Software Foundation	CPython	Affected: 3.12.0 , < 3.12.1 (python) Affected: 3.13.0a1 , < 3.13.0a3 (python)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:python:cpython:3.13.0:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "cpython",
            "vendor": "python",
            "versions": [
              {
                "status": "affected",
                "version": "3.13.0"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:python:cpython:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "cpython",
            "vendor": "python",
            "versions": [
              {
                "status": "affected",
                "version": "3.12.0"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-6507",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-31T20:16:20.207522Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:17:02.629Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:35:13.267Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "issue-tracking",
              "x_transferred"
            ],
            "url": "https://github.com/python/cpython/issues/112334"
          },
          {
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/"
          },
          {
            "tags": [
              "patch",
              "x_transferred"
            ],
            "url": "https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610"
          },
          {
            "tags": [
              "patch",
              "x_transferred"
            ],
            "url": "https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b"
          },
          {
            "tags": [
              "patch",
              "x_transferred"
            ],
            "url": "https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "POSIX"
          ],
          "product": "CPython",
          "repo": "https://github.com/python/cpython",
          "vendor": "Python Software Foundation",
          "versions": [
            {
              "lessThan": "3.12.1",
              "status": "affected",
              "version": "3.12.0",
              "versionType": "python"
            },
            {
              "lessThan": "3.13.0a3",
              "status": "affected",
              "version": "3.13.0a1",
              "versionType": "python"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003e\u003cspan style=\"background-color: transparent;\"\u003eAn issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases.\u003c/span\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: transparent;\"\u003eWhen using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes\u0027 groups before starting the new process. There is no issue when the parameter isn\u0027t used or when any value is used besides an empty list.\u003c/span\u003e\u003c/p\u003e\u003cp\u003e\u003cspan style=\"background-color: transparent;\"\u003eThis issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).\u003c/span\u003e\u003c/p\u003e"
            }
          ],
          "value": "An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases.\n\nWhen using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes\u0027 groups before starting the new process. There is no issue when the parameter isn\u0027t used or when any value is used besides an empty list.\n\nThis issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).\n\n"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-122",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-122 Privilege Abuse"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269 Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-07T21:36:25.215Z",
        "orgId": "28c92f92-d60d-412d-b760-e73465c3df22",
        "shortName": "PSF"
      },
      "references": [
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/python/cpython/issues/112334"
        },
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Groups not dropped before running subprocess when using empty \u0027extra_groups\u0027 parameter",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "28c92f92-d60d-412d-b760-e73465c3df22",
    "assignerShortName": "PSF",
    "cveId": "CVE-2023-6507",
    "datePublished": "2023-12-08T18:20:49.583Z",
    "dateReserved": "2023-12-04T21:24:50.284Z",
    "dateUpdated": "2024-08-02T08:35:13.267Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-4WXH-FPJF-C8WF

CVE-2023-6507 (GCVE-0-2023-6507)

Tags

Sightings

Nomenclature