SB2024102402 - Denial of service in Cisco Adaptive Security Appliance and Firepower Threat Defense Software Remote Access SSL VPN Authentication
Published: October 24, 2024
Security Bulletin ID
SB2024102402
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of insufficiently random values (CVE-ID: CVE-2024-20331)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient entropy in the authentication process in the session authentication functionality of the Remote Access SSL VPN feature. A remote attacker can determining the handle of an authenticating user and use it to terminate their authentication session, resulting in a denial of service condition.
Remediation
Install update from vendor's website.