CVE-2023-6597

python: Path traversal on tempfile.TemporaryDirectory

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

An issue was found in the CPython `tempfile.TemporaryDirectory` class affecting versions 3.12.1, 3.11.7, 3.10.13, 3.9.18, and 3.8.18 and prior.

The tempfile.TemporaryDirectory class would dereference symlinks during cleanup of permissions-related errors. This means users which can run privileged programs are potentially able to modify permissions of files referenced by symlinks in some circumstances.

Se encontró un problema en la clase CPython `tempfile.TemporaryDirectory` que afecta a las versiones 3.12.2, 3.11.8, 3.10.13, 3.9.18 y 3.8.18 y anteriores. La clase tempfile.TemporaryDirectory eliminaría la referencia a enlaces simbólicos durante la limpieza de errores relacionados con permisos. Esto significa que los usuarios que pueden ejecutar programas privilegiados pueden modificar los permisos de los archivos a los que hacen referencia los enlaces simbólicos en algunas circunstancias.

A flaw was found in the tempfile.TemporaryDirectory class in python3/cpython3. The class may dereference symbolic links during permission-related errors, resulting in users that run privileged programs being able to modify permissions of files referenced by the symbolic link.

*Credits: N/A

CVSS Scores

Python SFv3.1 7.8

Attack Vector

Local

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2023-12-07 CVE Reserved
2024-03-19 CVE Published
2024-06-11 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-61: UNIX Symbolic Link (Symlink) Following

CAPEC

References (14)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2024/03/20/5
https://github.com/python/cpython/issues/91133	Issue Tracking
https://lists.debian.org/debian-lts-announce/2024/03/msg00025.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3IGRX54M7RNCQOXVQO5KQKTGWCOABIM
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5VHWS52HGD743C47UMCSAK2A773M2YE

URL	Date	SRC

URL	Date	SRC
https://github.com/python/cpython/commit/02a9259c717738dfe6b463c44d7e17f2b6d2cb3a	2024-06-10
https://github.com/python/cpython/commit/5585334d772b253a01a6730e8202ffb1607c3d25	2024-06-10
https://github.com/python/cpython/commit/6ceb8aeda504b079fef7a57b8d81472f15cdd9a5	2024-06-10
https://github.com/python/cpython/commit/81c16cd94ec38d61aa478b9a452436dc3b1b524d	2024-06-10
https://github.com/python/cpython/commit/8eaeefe49d179ca4908d052745e3bb8b6f238f82	2024-06-10
https://github.com/python/cpython/commit/d54e22a669ae6e987199bb5d2c69bb5a46b0083b	2024-06-10

URL	Date	SRC
https://mail.python.org/archives/list/security-announce@python.org/thread/Q5C6ATFC67K53XFV4KE45325S7NS62LD	2024-06-10
https://access.redhat.com/security/cve/CVE-2023-6597	2024-08-21
https://bugzilla.redhat.com/show_bug.cgi?id=2276518	2024-08-21

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Python Software Foundation Search vendor "Python Software Foundation"		CPython Search vendor "Python Software Foundation" for product "CPython"				< 3.8.19 Search vendor "Python Software Foundation" for product "CPython" and version " < 3.8.19"		en		Affected
Python Software Foundation Search vendor "Python Software Foundation"		CPython Search vendor "Python Software Foundation" for product "CPython"				>= 3.9.0 < 3.9.19 Search vendor "Python Software Foundation" for product "CPython" and version " >= 3.9.0 < 3.9.19"		en		Affected
Python Software Foundation Search vendor "Python Software Foundation"		CPython Search vendor "Python Software Foundation" for product "CPython"				>= 3.10.0 < 3.10.14 Search vendor "Python Software Foundation" for product "CPython" and version " >= 3.10.0 < 3.10.14"		en		Affected
Python Software Foundation Search vendor "Python Software Foundation"		CPython Search vendor "Python Software Foundation" for product "CPython"				>= 3.11.0 < 3.11.8 Search vendor "Python Software Foundation" for product "CPython" and version " >= 3.11.0 < 3.11.8"		en		Affected
Python Software Foundation Search vendor "Python Software Foundation"		CPython Search vendor "Python Software Foundation" for product "CPython"				>= 3.12.0 < 3.12.1 Search vendor "Python Software Foundation" for product "CPython" and version " >= 3.12.0 < 3.12.1"		en		Affected