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.

Score

CVSS 2.0 5.8 Medium

Status

Modified - cret@cert.org

Published

2012-01-06

Last modified

2024-08-07

Weaknesses

CWE-287

Affected products

• Wifi Protected Setup Protocol (Wi-fi)

References

• 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