Cisco Network Admission Control (NAC) Appliance unauthorized access
| cisco-nac-unauthorized-access (41849) |  High Risk |
Description:
The Cisco Network Admission Control (NAC) Appliance could allow a remote attacker to gain control of the system. By using a network sniffing tool, a remote attacker could obtain the shared secret from the error logs for the Clean Access Server (CAS) and Clean Access Manager (CAM). An attacker could exploit this vulnerability to gain complete control over an affected system.
Platforms Affected:
- Cisco, Network Admission Control 3.5
- Cisco, Network Admission Control 3.6
- Cisco, Network Admission Control 3.6.0
- Cisco, Network Admission Control 3.6.0.1
- Cisco, Network Admission Control 3.6.1.1
- Cisco, Network Admission Control 3.6.2.1
- Cisco, Network Admission Control 3.6.2.2
- Cisco, Network Admission Control 3.6.4.1
- Cisco, Network Admission Control 3.6.4.2
- Cisco, Network Admission Control 3.6.4.3
- Cisco, Network Admission Control 4.0
- Cisco, Network Admission Control 4.0.0.1
- Cisco, Network Admission Control 4.0.1
- Cisco, Network Admission Control 4.0.2
- Cisco, Network Admission Control 4.0.2.1
- Cisco, Network Admission Control 4.0.2.2
- Cisco, Network Admission Control 4.0.3
- Cisco, Network Admission Control 4.0.3.1
- Cisco, Network Admission Control 4.0.3.2
- Cisco, Network Admission Control 4.0.3.3
- Cisco, Network Admission Control 4.0.4
- Cisco, Network Admission Control 4.0.5
- Cisco, Network Admission Control 4.0.5.0
- Cisco, Network Admission Control 4.0.5.1
- Cisco, Network Admission Control 4.1
- Cisco, Network Admission Control 4.1.0
- Cisco, Network Admission Control 4.1.1
Remedy:
Refer to cisco-sa-20080416-nac for patch, upgrade or suggested workaround information. See References.
Consequences:
Gain Access
References:
- cisco-sa-20080416-nac, Control Shared Secret Vulnerability at http://www.cisco.com/warp/public/707/cisco-sa-20080416-nac.shtml.
- BID-28807: Cisco Network Admission Control Shared Secret Information Disclosure Vulnerability
- CVE-2008-1155: Cisco Network Admission Control (NAC) Appliance 3.5.x, 3.6.x before 3.6.4.4, 4.0.x before 4.0.6, and 4.1.x before 4.1.2 allows remote attackers to obtain the shared secret for the Clean Access Server (CAS) and Clean Access Manager (CAM) by sniffing error logs.
- SA29822: Cisco Network Admission Control Information Disclosure Security Issue
- SECTRACK ID: 1019859: Cisco Network Admission Control Appliance Discloses Clean Access Server and Clean Access Manager Shared Secret
- VUPEN/ADV-2008-1248: Cisco Network Admission Control Shared Secret Disclosure Vulnerability
Reported:
Apr 16, 2008
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