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CVE-2024-4030

HIGH
Published 2024-05-07T21:02:55.284Z
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CVSS Score

V3.1
7.1
/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.036
Higher than 3.6% of all CVEs

Attack Vector Metrics

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Python Software Foundation

CPython

Affected Versions:

0 3.9.0 3.10.0 3.11.0 3.12.0 3.13.0a1
python

cpython

Affected Versions:

0 3.13.0a1

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-2w87-6hh6-mqrj

Advisory Details

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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-4030
WEB https://github.com/python/cpython/issues/118486
WEB https://github.com/python/cpython/commit/35c799d79177b962ddace2fa068101465570a29a
WEB https://github.com/python/cpython/commit/5130731c9e779b97d00a24f54cdce73ce9975dfd
WEB https://github.com/python/cpython/commit/66f8bb76a15e64a1bb7688b177ed29e26230fdee
WEB https://github.com/python/cpython/commit/6d0850c4c8188035643586ab4d8ec2468abd699e
WEB https://github.com/python/cpython/commit/81939dad77001556c527485d31a2d0f4a759033e
WEB https://github.com/python/cpython/commit/8ed546679524140d8282175411fd141fe7df070d
WEB https://github.com/python/cpython/commit/91e3669e01245185569d09e9e6e11641282971ee
WEB https://github.com/python/cpython/commit/94591dca510c796c7d40e9b4167ea56f2fdf28ca
WEB https://github.com/python/cpython/commit/c8f868dc52f98011d0f9b459b6487920bfb0ac4d
WEB https://github.com/python/cpython/commit/d86b49411753bf2c83291e3a14ae43fefded2f84
WEB https://github.com/python/cpython/commit/e1dfa978b1ad210d551385ad8073ec6154f53763
WEB https://github.com/python/cpython/commit/eb29e2f5905da93333d1ce78bc98b151e763ff46
WEB https://mail.python.org/archives/list/[email protected]/thread/PRGS5OR3N3PNPT4BMV2VAGN5GMUI5636
WEB https://security.netapp.com/advisory/ntap-20240705-0005

Advisory provided by GitHub Security Advisory Database. Published: May 7, 2024, Modified: September 7, 2024

References

https://mail.python.org/archives/list/[email protected]/thread/PRGS5OR3N3PNPT4BMV2VAGN5GMUI5636/
https://github.com/python/cpython/issues/118486
https://github.com/python/cpython/commit/81939dad77001556c527485d31a2d0f4a759033e
https://github.com/python/cpython/commit/8ed546679524140d8282175411fd141fe7df070d
https://github.com/python/cpython/commit/35c799d79177b962ddace2fa068101465570a29a
https://github.com/python/cpython/commit/5130731c9e779b97d00a24f54cdce73ce9975dfd
https://github.com/python/cpython/commit/66f8bb76a15e64a1bb7688b177ed29e26230fdee
https://github.com/python/cpython/commit/6d0850c4c8188035643586ab4d8ec2468abd699e
https://github.com/python/cpython/commit/91e3669e01245185569d09e9e6e11641282971ee
https://github.com/python/cpython/commit/94591dca510c796c7d40e9b4167ea56f2fdf28ca
https://github.com/python/cpython/commit/c8f868dc52f98011d0f9b459b6487920bfb0ac4d
https://github.com/python/cpython/commit/d86b49411753bf2c83291e3a14ae43fefded2f84
https://github.com/python/cpython/commit/e1dfa978b1ad210d551385ad8073ec6154f53763
https://github.com/python/cpython/commit/eb29e2f5905da93333d1ce78bc98b151e763ff46
https://security.netapp.com/advisory/ntap-20240705-0005/
Published: 2024-05-07T21:02:55.284Z
Last Modified: 2024-09-07T02:44:36.613Z
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