Vulnerability CVE-2021-45444
Published: 2022-02-14

Description:
In zsh before 5.8.1, an attacker can achieve code execution if they control a command output inside the prompt, as demonstrated by a %F argument. This occurs because of recursive PROMPT_SUBST expansion.

Type:

NVD-CWE-noinfo

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
ZSH -> ZSH 
Fedoraproject -> Fedora 
Debian -> Debian linux 

 References:
https://zsh.sourceforge.io/releases.html
https://vuln.ryotak.me/advisories/63
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2P3LPMGENEHKDWFO4MWMZSZL6G7Y4CV7/
https://www.debian.org/security/2022/dsa-5078
https://lists.debian.org/debian-lts-announce/2022/02/msg00020.html
Copyright 2024, cxsecurity.com

 

Back to Top