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

Vulnerability from cvelistv5 – Published: 2023-12-08 18:20 – Updated: 2024-08-02 08:35
VLAI?
Title
Groups not dropped before running subprocess when using empty 'extra_groups' parameter
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
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)
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}


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  • 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.
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  • 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.