Description
The Cisco Network Admission Control (NAC) 3.6.4.1 and earlier allows remote attackers to prevent installation of the Cisco Clean Access (CCA) Agent and bypass local and remote protection mechanisms by modifying (1) the HTTP User-Agent header or (2) the behavior of the TCP/IP stack. NOTE: the vendor has disputed the severity of this issue, stating that users cannot bypass authentication mechanisms.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n/a n/a
n/aaffected
References
- http://archive.cert.uni-stuttgart.de/archive/bugtraq/2005/08/msg00200.html ↗
- http://www.securityfocus.com/bid/19726 ↗
- http://www.securityfocus.com/archive/1/444737/100/0/threaded ↗
- http://www.cisco.com/en/US/products/ps6128/products_security_notice09186a00804fa82b.html ↗
- http://www.securityfocus.com/archive/1/408603/30/0/threaded ↗
- http://www.cisco.com/en/US/products/ps6128/tsd_products_security_response09186a008071d609.html ↗
- http://www.securityfocus.com/archive/1/444501/100/0/threaded ↗
- http://www.securityfocus.com/archive/1/444424/100/0/threaded ↗