Authentication Bypass Vulnerability in Cisco Secure Access Control Server

CVE-2004-1099 · HIGH Severity

AV:N/AC:L/AU:N/C:C/I:C/A:C

Cisco Secure Access Control Server for Windows (ACS Windows) and Cisco Secure Access Control Server Solution Engine (ACS Solution Engine) 3.3.1, when the EAP-TLS protocol is enabled, does not properly handle expired or untrusted certificates, which allows remote attackers to bypass authentication and gain unauthorized access via a "cryptographically correct" certificate with valid fields such as the username.

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