Current 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.

Basic Data

PublishedJanuary 10, 2005
Last ModifiedOctober 30, 2018
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeNVD-CWE-Other
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:C/I:C/A:C
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactCOMPLETE
CVSS 2 - Availability ImpactCOMPLETE
CVSS 2 - Base Score10.0
Exploitability Score10.0
Impact Score10.0
Obtain All Privilegetrue
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.


  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationCiscoSecure Access Control Server3.3(1)*******
    2.3ApplicationCiscoSecure Access Control Server3.3.1*******
    2.3ApplicationCiscoSecure Acs Solution Engine********

Vulnerable Software List

Cisco Secure Access Control Server 3.3(1), 3.3.1
Cisco Secure Acs Solution Engine *


P-028 Vendor Advisory
20041102 Vulnerability in Cisco Secure Access Control Server EAP-TLS Authentication Advisory
11577 Vendor Advisory