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CVE-2023-6507

6.1 · MEDIUM

An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms.

Published Dec 8, 2023CWE-269EPSS 1.34%

Overview

CVE-2023-6507 is a medium-severity vulnerability. It was published on December 8, 2023 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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`).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82bGitHubgithub.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06GitHubgithub.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610GitHubgithub.com/python/cpython/issues/112334Refmail.python.org/archives/list/[email protected]/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/GitHubgithub.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82bGitHubgithub.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06GitHubgithub.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610GitHubgithub.com/python/cpython/issues/112334Refmail.python.org/archives/list/[email protected]/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-6507?

CVE-2023-6507 is a medium-severity vulnerability. It was published on December 8, 2023 and has a CVSS 3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2023-6507?

This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-6507?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-6507?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-6507 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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