Vulnerability Monitor

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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.

Published

2005-01-10T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 10.0 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

10.0

Impact Score

10.0

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cisco	secure_access_control_server	3.3\(1\)	Yes
Application	cisco	secure_access_control_server	3.3.1	Yes
Application	cisco	secure_acs_solution_engine	*	Yes

References

http://www.ciac.org/ciac/bulletins/p-028.shtml Patch, Vendor Advisory ([email protected])
http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/11577 Patch, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/17936 ([email protected])
http://www.ciac.org/ciac/bulletins/p-028.shtml Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/11577 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/17936 (af854a3a-2127-422b-91ae-364da2661108)