CVE-2004-1099

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.

• http://www.ciac.org/ciac/bulletins/p-028.shtmlPatch, Vendor Advisory
• http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtmlVendor Advisory
• http://www.securityfocus.com/bid/11577Patch, Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/17936
• http://www.ciac.org/ciac/bulletins/p-028.shtmlPatch, Vendor Advisory
• http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtmlVendor Advisory
• http://www.securityfocus.com/bid/11577Patch, Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/17936

Published

Jan 10, 2005

Last Modified

Jun 16, 2026

Status

Modified

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