CVE-2006-4430 Security feature bypass in n/a

Medium 5.0 Published Updated

Remote attackers can bypass Cisco NAC protection mechanisms by modifying HTTP headers or TCP/IP stack behavior, preventing agent installation.

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-2006-4430?

CVE-2006-4430 is a medium-severity vulnerability in n/a, published on 29 Aug 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Cisco Network Admission Control (NAC) 3.6.4.1 and earlier allows remote attackers to prevent installation of the Cisco Clean Access (CCA) Agent and bypass local and remote protection mechanisms by modifying (1) the HTTP User-Agent header or (2) the behavior of the TCP/IP stack. NOTE: the vendor has disputed the severity of this issue, stating that users cannot bypass authentication mechanisms.

Which versions are affected by CVE-2006-4430?

It affects 2 products.

Products include Cisco Network Admission Control, Cisco Network Admission Control Manager and Server System Software.

How do I fix CVE-2006-4430?

No fix has been published for CVE-2006-4430 yet. Limit exposure of the affected software until one is available.

Is CVE-2006-4430 being exploited?

There is no known exploitation of CVE-2006-4430 in the wild and no public exploit code.

Sources

Also known as GHSA-xhqj-9p6p-qgxw.

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