CVE-2024-11944

30.12.2024, 21:15

iXsystems TrueNAS CORE tarfile.extractall Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of iXsystems TrueNAS devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the tarfile.extractall method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-25626.

Path Traversal

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	ADJACENT_NETWORK	HIGH	NONE	CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
zdi	CNA	7.5 HIGH				CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA-ADP	ADP	---				---

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 75%

Common Weakness Enumeration

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References

https://www.truenas.com/docs/core/13.0/gettingstarted/corereleasenotes/#130-u63

https://www.zerodayinitiative.com/advisories/ZDI-24-1643/