UNIX symbolic link following in ClamAV - CVE-2024-20506
Published: September 5, 2024
Vulnerability identifier: #VU96824
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-20506
CWE-ID: CWE-61
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: ClamAV
Affected software:
ClamAV
ClamAV
Detailed vulnerability description
The vulnerability allows a local user to corrupt system files.
The vulnerability exists due to a symlink following issue within the logging module. A local user with existing access to the 'clamd' or 'freshclam' services can corrupt system files and perform a denial of service (DoS) attack.
How to mitigate CVE-2024-20506
Install updates from vendor's website.
Sources
- https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html
- https://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-1.3.2
- https://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-1.0.7
- https://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-0.103.12
- https://github.com/Cisco-Talos/clamav-devel/releases/tag/clamav-1.4.1