Input validation error in ZNC - CVE-2024-39844
Published: September 25, 2024 / Updated: November 22, 2024
Vulnerability identifier: #VU97707
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2024-39844
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: ZNC
Affected software:
ZNC
ZNC
Detailed vulnerability description
The vulnerability allows a remote user to compromise the affected system.
The vulnerability exists due to insufficient validation of user-supplied input in modtcl when processing the reason to kick a user from the channel. A remote user can pass specially crafted input to the application and execute arbitrary code on the server.
How to mitigate CVE-2024-39844
Install updates from vendor's website.