CVE-2011-5053 Information

Description

The Wi-Fi Protected Setup (WPS) protocol when the \external registrar\ authentication method is used does not properly inform clients about failed PIN authentication which makes it easier for remote attackers to discover the PIN value and consequently discover the Wi-Fi network password or reconfigure an access point by reading EAP-NACK messages.

Reference

http://code.google.com/p/reaver-wps/ http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/ http://tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20120111-wps http://www.kb.cert.org/vuls/id/723755 http://www.us-cert.gov/cas/techalerts/TA12-006A.html