Input validation error in WinRAR - CVE-2023-38831
Published: August 23, 2023 / Updated: October 25, 2024
Vulnerability identifier: #VU79925
CSH Severity: Critical
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red
CVE-ID: CVE-2023-38831
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vendor: RARLAB
Affected software:
WinRAR
WinRAR
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient validation of file names inside .zip archives. A remote attacker can create a specially crafted archive that contains executable malicious files and spoof their file extension to look like .jpeg or .txt.
Note, the vulnerability is being actively exploited in the wild as of April 2023.
How to mitigate CVE-2023-38831
Install updates from vendor's website.