SB2023082350 - File extension spoofing in WinRAR
Published: August 23, 2023 Updated: October 25, 2024
Security Bulletin ID
SB2023082350
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2023-38831)
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.
Remediation
Install update from vendor's website.