Cisco Extensible Authentication Protocol (EAP) denial of service
| cisco-eap-dos (37300) |  Low Risk |
Description:
Multiple Cisco devices running certain versions of Cisco IOS and Cisco CatOS are vulnerable to a denial of service, caused by an error in the Extensible Authentication Protocol (EAP) implementation. A remote attacker could send a specially-crafted EAP Response Identity packet to cause an affected device to reload, resulting in a denial of service.
*CVSS:
| Base Score: | 7.1 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 5.3 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Refer to cisco-sr-20071019-eap for patch, upgrade or suggested workaround information. See References.
References:
- cisco-sr-20071019-eap: Cisco Security Response: Extensible Authentication Protocol Vulnerability.
- BID-26139: Cisco Multiple Products Extensible Authentication Protocol Denial of Service Vulnerability
- CVE-2007-5651: Unspecified vulnerability in the Extensible Authentication Protocol (EAP) implementation in Cisco IOS 12.3 and 12.4 on Cisco Access Points and 1310 Wireless Bridges (Wireless EAP devices), IOS 12.1 and 12.2 on Cisco switches (Wired EAP devices), and CatOS 6.x through 8.x on Cisco switches allows remote attackers to cause a denial of service (device reload) via a crafted EAP Response Identity packet.
- SA27329: Cisco Products EAP Denial of Service Vulnerability
- SECTRACK ID: 1018842: Cisco IOS Extensible Authentication Protocol (EAP) Bug Lets Remote Users Deny Service
- VUPEN/ADV-2007-3566: Cisco Products Extensible Authentication Protocol Denial of Service Issue
Platforms Affected:
- Cisco CatOS 6.1
- Cisco CatOS 6.2
- Cisco CatOS 6.3
- Cisco CatOS 6.4
- Cisco CatOS 7.1
- Cisco CatOS 7.2
- Cisco CatOS 7.3
- Cisco CatOS 7.4
- Cisco CatOS 7.5
- Cisco CatOS 7.6
- Cisco CatOS 8.1
- Cisco CatOS 8.2
- Cisco CatOS 8.3
- Cisco CatOS 8.4
- Cisco CatOS 8.5
- Cisco IOS 12.1
- Cisco IOS 12.2
- Cisco IOS 12.3JA
- Cisco IOS 12.3JEA
- Cisco IOS 12.3JEB
- Cisco IOS 12.3JEC
- Cisco IOS 12.4JA
Reported:
Oct 19, 2007
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* 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.