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CVE-2006-4430

5.0 · MEDIUM

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…

Published Aug 29, 2006ciscoEPSS 1.95%

Overview

CVE-2006-4430 is a medium-severity vulnerability affecting cisco network_admission_control. It was published on August 29, 2006 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from cisco. Update network_admission_control to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
cisconetwork_admission_control0Affected

References

Refarchive.cert.uni-stuttgart.de/archive/bugtraq/2005/08/msg00200.htmlRefwww.cisco.com/en/US/products/ps6128/products_security_notice09186a00804fa82b.htmlRefwww.cisco.com/en/US/products/ps6128/tsd_products_security_response09186a008071d609.htmlRefwww.securityfocus.com/archive/1/408603/30/0/threadedRefwww.securityfocus.com/archive/1/444424/100/0/threadedRefwww.securityfocus.com/archive/1/444501/100/0/threadedRefwww.securityfocus.com/archive/1/444737/100/0/threadedRefwww.securityfocus.com/bid/19726Refarchive.cert.uni-stuttgart.de/archive/bugtraq/2005/08/msg00200.htmlRefwww.cisco.com/en/US/products/ps6128/products_security_notice09186a00804fa82b.html

How CyberStrike helps

Frequently asked questions

What is CVE-2006-4430?

CVE-2006-4430 is a medium-severity vulnerability affecting cisco network_admission_control. It was published on August 29, 2006 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2006-4430?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2006-4430?

Check the references section for vendor advisories and patches from cisco. Update network_admission_control to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2006-4430?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2006-4430 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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