CVE-2022-30333
Published 2022-05-09 · Updated 2026-10-02 · Source cve@mitre.org
Summary
CVE-2022-30333 is a high-severity (CVSS 7.5) vulnerability in RARLAB UnRAR. CISA added it to the Known Exploited Vulnerabilities catalog on August 9, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by August 30, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. RARLAB has 5 vulnerabilities in the KEV catalog, 4 of them linked to ransomware.
All 5 known-exploited RARLAB vulnerabilities →Description
RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (aka unpack) operation, as demonstrated by creating a ~/.ssh/authorized_keys file. NOTE: WinRAR and Android RAR are unaffected.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA Known-Exploited Vulnerability
Product: RARLAB — UnRAR
Name: RARLAB UnRAR Directory Traversal Vulnerability
Date added: 2022-08-09 · Due: 2022-08-30
Required action: Apply updates per vendor instructions.
References
- http://packetstormsecurity.com/files/167989/Zimbra-UnRAR-Path-Traversal.html
- https://blog.sonarsource.com/zimbra-pre-auth-rce-via-unrar-0day/
- https://lists.debian.org/debian-lts-announce/2023/08/msg00022.html
- https://security.gentoo.org/glsa/202309-04
- https://www.rarlab.com/rar/rarlinux-x32-612.tar.gz
- https://www.rarlab.com/rar_add.htm
- http://packetstormsecurity.com/files/167989/Zimbra-UnRAR-Path-Traversal.html
- https://blog.sonarsource.com/zimbra-pre-auth-rce-via-unrar-0day/

