CVE-2023-50254

22.12.2023, 17:15

Deepin Linux's default document reader `deepin-reader` software suffers from a serious vulnerability in versions prior to 6.0.7 due to a design flaw that leads to remote command execution via crafted docx document. This is a file overwrite vulnerability. Remote code execution (RCE) can be achieved by overwriting files like .bash_rc, .bash_login, etc. RCE will be triggered when the user opens the terminal. Version 6.0.7 contains a patch for the issue.

Path Traversal

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	9.3 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H
GitHub_M	CNA	9.3 CRITICAL	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 92%

Vendor	Product	Version
deepin	deepin_reader	𝑥 < 6.0.7

𝑥

= Vulnerable software versions

Known Exploits!

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://github.com/linuxdeepin/deepin-reader/commit/4db7a079fb7bd77257b1b9208a7ab26aade8fe04

https://github.com/linuxdeepin/deepin-reader/commit/c192fd20a2fe4003e0581c3164489a89e06420c6

https://github.com/linuxdeepin/developer-center/security/advisories/GHSA-q9jr-726g-9495

https://github.com/linuxdeepin/deepin-reader/commit/4db7a079fb7bd77257b1b9208a7ab26aade8fe04

https://github.com/linuxdeepin/deepin-reader/commit/c192fd20a2fe4003e0581c3164489a89e06420c6

https://github.com/linuxdeepin/developer-center/security/advisories/GHSA-q9jr-726g-9495