Detections
Analytics

CVE-2021-45444

high

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.

References

https://zsh.sourceforge.io/releases.html

https://www.debian.org/security/2022/dsa-5078

https://vuln.ryotak.me/advisories/63

https://support.apple.com/kb/HT213257

https://support.apple.com/kb/HT213256

https://support.apple.com/kb/HT213255

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BWF3EXNBX5SVFDBL4ZFOD4GJBWFUKWN4/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2P3LPMGENEHKDWFO4MWMZSZL6G7Y4CV7/

https://lists.debian.org/debian-lts-announce/2022/02/msg00020.html

http://seclists.org/fulldisclosure/2022/May/38

http://seclists.org/fulldisclosure/2022/May/35

http://seclists.org/fulldisclosure/2022/May/33

https://support.apple.com/en-us/HT213256

https://support.apple.com/en-us/102770

Details

Source: Mitre, NVD

Published: 2022-02-14

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00083