Threat Center Security News Cisco Secure ACS EAP Remote Denial Of Service Vulnerability
Cisco Secure ACS EAP Remote Denial Of Service Vulnerability Print E-mail
Written by Rebecca Mints   
Thursday, 04 September 2008 11:27

A vulnerability has been identified in Cisco Secure ACS, which could be exploited by remote attackers to cause a denial of service. This issue is caused by an error when processing a specially crafted Remote Authentication Dial In User Service (RADIUS) Extensible Authentication Protocol (EAP) Message Attribute packet containing an overly large "length" field, which could allow attackers to cause the CSRadius and CSAuth processes to crash, creating a denial of service condition.

 

Note: The RADIUS shared secret and a valid known Network Access Server (NAS) IP address must be known to exploit this vulnerability. Vulnerability reported by Laurent Butti and Gabriel Campana (Orange Labs / France Telecom Group

 

Source: http://www.frsirt.com/english/advisories/2008/2491

 

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