CVE-2004-1099

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.

10.0

CVSS

Severity: Critical

CVSS 2.0 •

EPSS 10.73% Top 10%

Vendor Advisory cisco.com Vendor Advisory ciac.org Vendor Advisory securityfocus.com

Affected: n/a n/a

References

Link	Tags
http://www.cisco.com/warp/public/707/cisco-sa-20041102-acs-eap-tls.shtml	vendor advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/17936	vdb entry
http://www.securityfocus.com/bid/11577	patch vendor advisory vdb entry
http://www.ciac.org/ciac/bulletins/p-028.shtml	patch vendor advisory government resource third party advisory

Frequently Asked Questions

What is the severity of CVE-2004-1099?: CVE-2004-1099 has been scored as a critical severity vulnerability.
How to fix CVE-2004-1099?: To fix CVE-2004-1099, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2004-1099 being actively exploited in the wild?: It is possible that CVE-2004-1099 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~11% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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