SB2023110237 - Improper access control in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software
Published: November 2, 2023
Security Bulletin ID
SB2023110237
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 access control (CVE-ID: CVE-2023-20264)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to insufficient validation of the login URL in the implementation of Security Assertion Markup Language (SAML) 2.0 single sign-on (SSO) for remote access VPN. A remote attacker can trick a victim to access the specially crafted site and intercept the SAML assertion, leading to access to the protected network.
Remediation
Install update from vendor's website.