Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2006-4430

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
29/08/2006
Last modified:
03/04/2025

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.

Impact

Vector 2.0
AV:N/AC:L/Au:N/C:N/I:P/A:N CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): Physical
Availability (A): None

Base Score 2.0
5.00
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:network_admission_control:*:*:*:*:*:*:*:* 3.6.4.1 (including)
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.6:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.8:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.3.9:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:network_admission_control_manager_and_server_system_software:3.4.3:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools