Description
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.
References (4)
Core 4
Core References
Vendor Advisory vendor-advisory
x_refsource_cisco
http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/17936
Patch, Vendor Advisory vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/11577
Patch, Vendor Advisory third-party-advisory
government-resource
x_refsource_ciac
http://www.ciac.org/ciac/bulletins/p-028.shtml
Scores
EPSS
0.1019
EPSS Percentile
95.2%
Details
Status
published
Products (3)
cisco/secure_access_control_server
3.3\(1\)
cisco/secure_access_control_server
3.3.1
cisco/secure_acs_solution_engine
Published
Jan 10, 2005
Tracked Since
Feb 18, 2026