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Newly Discovered Vulnerability Could Threaten Cisco Wireless LANs




Newly Discovered Vulnerability Could Threaten Cisco Wireless LANs
Newly Discovered Vulnerability Could Threaten Cisco Wireless LANs



http://www.darkreading.com/security/vulnerabilities/showArticle.jhtml?articleID=219401274 

By Tim Wilson
DarkReading
Aug 24, 2009 

A flaw in the provisioning system used by Cisco wireless LANs could 
allow attackers to collect data about users' wired networks or even gain 
access to WLAN-attached systems, researchers said today.

Researchers at AirMagnet's Intrusion Research Team say they have 
uncovered a security vulnerability in Cisco's Over-The-Air-Provisioning 
(OTAP), a feature that helps users deploy wireless access points (APs). 
The potential exploit -- which AirMagnet has dubbed SkyJack -- makes it 
possible for others to gain control of a Cisco AP, intentionally or 
unintentionally.

The Cisco OTAP feature allows a Cisco AP to "listen" to traffic from 
nearby Cisco APs and use that information to quickly locate a nearby 
WLAN controller on the network. However, this feature may cause 
unintentional exposure or leakage of network information in all 
lightweight Cisco APs, AirMagnet says.

If the OTAP feature is not turned off, it is possible for APs to be 
incorrectly assigned to an outside Cisco controller -- a.k.a. SkyJacked 
-- either by accident or at the direction of a potential hacker, 
AirMagnet says.

[...]


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