CVE-2004-1099

Severity

99%

Complexity

99%

Confidentiality

165%

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.

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.

CVSS 2.0 Base Score 9.9. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C).

Overview

Type

Cisco Secure

First reported 20 years ago

2005-01-10 05:00:00

Last updated 6 years ago

2018-10-30 16:25:00

Affected Software

Cisco Secure Access Control Server (ACS) 3.3(1) for Windows

3.3\(1\)

Cisco Secure Access Control Server (ACS) 3.3.1 for Windows

3.3.1

Cisco Secure ACS Solution Engine

References

P-028

Patch, Vendor Advisory

20041102 Vulnerability in Cisco Secure Access Control Server EAP-TLS Authentication

Vendor Advisory

11577

Patch, Vendor Advisory

ciscosecure-eaptls-auth-bypass(17936)

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