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.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Reaver - WiFi Protected Setup (WPS) EDB-18291 · remote · Dec 30, 2011
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- http://code.google.com/p/reaver-wps/
- http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/
- http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf
- VU#723755 third-party-advisory
- TA12-006A third-party-advisory
- 20120111 Wi-Fi Protected Setup PIN Brute Force Vulnerability vendor-advisory