CVE-2004-1099 Auth bypass in n/a

Critical 10.0 Published 1 Dec 2004 Updated 8 Aug 2024

Remote attackers can bypass authentication in Cisco Secure ACS by exploiting improper handling of expired or untrusted certificates when EAP-TLS is enabled.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2004-1099?

CVE-2004-1099 is a critical authentication bypass vulnerability in n/a, published on 1 Dec 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Which versions are affected by CVE-2004-1099?

It affects 2 products.

Products include Cisco Secure Access Control Server, Cisco Secure Acs Solution Engine.

How do I fix CVE-2004-1099?

No fix has been published for CVE-2004-1099 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2004-1099 being exploited?

There is no known exploitation of CVE-2004-1099 in the wild and no public exploit code.

Sources

Also known as GHSA-jx47-vcqg-x34g.