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.
*CVSS:
| Base Score: | 9.3 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 6.9 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Refer to cisco-sa-20080416-nac for patch, upgrade or suggested workaround information. See References.
References:
- cisco-sa-20080416-nac: Control Shared Secret Vulnerability.
- 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
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
Reported:
Apr 16, 2008
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For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.