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CVE-2024-4030

7.1 · HIGH

On Windows a directory returned by tempfile.mkdtemp() would not always have permissions set to restrict reading and writing to the temporary directory by other users, instead usually inheriting the…

Published May 7, 2024CWE-276EPSS 0.30%

Overview

CVE-2024-4030 is a high-severity vulnerability. It was published on May 7, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

On Windows a directory returned by tempfile.mkdtemp() would not always have permissions set to restrict reading and writing to the temporary directory by other users, instead usually inheriting the correct permissions from the default location. Alternate configurations or users without a profile directory may not have the intended permissions.

If you’re not using Windows or haven’t changed the temporary directory location then you aren’t affected by this vulnerability. On other platforms the returned directory is consistently readable and writable only by the current user.

This issue was caused by Python not supporting Unix permissions on Windows. The fix adds support for Unix “700” for the mkdir function on Windows which is used by mkdtemp() to ensure the newly created directory has the proper permissions.

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/35c799d79177b962ddace2fa068101465570a29aGitHubgithub.com/python/cpython/commit/5130731c9e779b97d00a24f54cdce73ce9975dfdGitHubgithub.com/python/cpython/commit/66f8bb76a15e64a1bb7688b177ed29e26230fdeeGitHubgithub.com/python/cpython/commit/6d0850c4c8188035643586ab4d8ec2468abd699eGitHubgithub.com/python/cpython/commit/81939dad77001556c527485d31a2d0f4a759033eGitHubgithub.com/python/cpython/commit/8ed546679524140d8282175411fd141fe7df070dGitHubgithub.com/python/cpython/commit/91e3669e01245185569d09e9e6e11641282971eeGitHubgithub.com/python/cpython/commit/94591dca510c796c7d40e9b4167ea56f2fdf28caGitHubgithub.com/python/cpython/commit/c8f868dc52f98011d0f9b459b6487920bfb0ac4dGitHubgithub.com/python/cpython/commit/d86b49411753bf2c83291e3a14ae43fefded2f84

How CyberStrike helps

Frequently asked questions

What is CVE-2024-4030?

CVE-2024-4030 is a high-severity vulnerability. It was published on May 7, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2024-4030?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-4030?

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-2024-4030?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-4030 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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