CVE-2004-1099

critical

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

https://exchange.xforce.ibmcloud.com/vulnerabilities/17936

http://www.securityfocus.com/bid/11577

http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml

http://www.ciac.org/ciac/bulletins/p-028.shtml

Details

Source: Mitre, NVD

Published: 2005-01-10

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.1073