OS command injection in TeX Live

1) OS Command Injection

EUVDB-ID: #VU76489

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-32700

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when processing a TeX file, obtain from an untrusted source. A remote attacker can pass specially crafted file to the application and execute arbitrary OS commands on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

texlive: 62180 - 66539

CPE2.3

• cpe:2.3:a:tex_users_group:texlive:62180:*:*:*:*:*:*:*
• cpe:2.3:a:tex_users_group:texlive:62182:*:*:*:*:*:*:*
• cpe:2.3:a:tex_users_group:texlive:62297:*:*:*:*:*:*:*

External links

https://tug.org/pipermail/tex-live/2023-May/049188.html
https://github.com/TeX-Live/texlive-source/releases/tag/build-svn66984

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.