CVEvulnerability

CVE-2006-4430

5.0 MEDIUM Published 2006-08-29 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2006-08-29
Last modified
2026-06-16
Assigner
[email protected]
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N

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.

Affected configurations

• cisco network admission control (<= 3.6.4.1) • cisco network admission control manager and server system software 3.3 • cisco network admission control manager and server system software 3.3.1 • cisco network admission control manager and server system software 3.3.2 • cisco network admission control manager and server system software 3.3.3 • cisco network admission control manager and server system software 3.3.4 • cisco network admission control manager and server system software 3.3.5 • cisco network admission control manager and server system software 3.3.6 • cisco network admission control manager and server system software 3.3.7 • cisco network admission control manager and server system software 3.3.8 • cisco network admission control manager and server system software 3.3.9 • cisco network admission control manager and server system software 3.4 • cisco network admission control manager and server system software 3.4.1 • cisco network admission control manager and server system software 3.4.2 • cisco network admission control manager and server system software 3.4.3 • cisco network admission control manager and server system software 3.4.4 • cisco network admission control manager and server system software 3.4.5 • cisco network admission control manager and server system software 3.5 • cisco network admission control manager and server system software 3.5\(9\) • cisco network admission control manager and server system software 3.5.1 • cisco network admission control manager and server system software 3.5.2 • cisco network admission control manager and server system software 3.5.3 • cisco network admission control manager and server system software 3.5.4 • cisco network admission control manager and server system software 3.5.5 • cisco network admission control manager and server system software 3.6.0.1 • cisco network admission control manager and server system software 3.6.4.0.1

References