CVE-2011-5053

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.

• CWE-287

• 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/723755US Government Resource
• http://www.us-cert.gov/cas/techalerts/TA12-006A.htmlUS Government Resource
• 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/723755US Government Resource
• http://www.us-cert.gov/cas/techalerts/TA12-006A.htmlUS Government Resource

Published

Jan 6, 2012

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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