SB2023110244 - Improper Certificate Validation in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software
Published: November 2, 2023
Security Bulletin ID
SB2023110244
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Certificate Validation (CVE-ID: CVE-2023-20247)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper error handling during remote access VPN authentication. A remote user can send a specially crafted request and bypass the configured multiple certificate authentication policy while retaining the privileges and permissions associated with the original connection profile.
Remediation
Install update from vendor's website.