SB2024052710 - Authorization bypass in Cisco Adaptive Security Appliance and Firepower Threat Defense
Published: May 27, 2024
Security Bulletin ID
SB2024052710
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) Missing Authorization (CVE-ID: CVE-2024-20355)
The vulnerability allows a remote user to bypass authorization.
The vulnerability exists due to an error in the implementation of SAML 2.0 single sign-on (SSO) for remote access VPN services. A remote authenticated user can establish a VPN connection using their designated connection profile (tunnel group), then intercept the SAML SSO token that is sent back from the Cisco ASA device, and use this token to a different tunnel group for authentication.
Remediation
Install update from vendor's website.