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.
Advisories
Source ID Title
EUVD EUVD EUVD-2006-4418 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-07T19:06:07.879Z

Reserved: 2006-08-28T00:00:00

Link: CVE-2006-4430

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2006-08-29T00:04:00.000

Modified: 2025-04-03T01:03:51.193

Link: CVE-2006-4430

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.