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.
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
Remedy:
Refer to cisco-sr-20071019-eap for patch, upgrade or suggested workaround information. See References.
Consequences:
Denial of Service
References:
- cisco-sr-20071019-eap, Cisco Security Response: Extensible Authentication Protocol Vulnerability at http://www.cisco.com/warp/public/707/cisco-sr-20071019-eap.shtml.
- 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.
- FrSIRT/ADV-2007-3566: Cisco Products Extensible Authentication Protocol Denial of Service Issue
- SA27329: Cisco Products EAP Denial of Service Vulnerability
- SECTRACK ID: 1018842: Cisco IOS Extensible Authentication Protocol (EAP) Bug Lets Remote Users Deny Service
Reported:
Oct 19, 2007
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