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Last updated: 7/25/2014 4:24:24 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2011-5053

Original release date: 01/06/2012
Last revised: 01/14/2013
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 5.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:N) (legend)
Impact Subscore: 4.9
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification

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External Source: MISC
Name: http://code.google.com/p/reaver-wps/
External Source: MISC
Name: http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/
US-CERT Vulnerability Note: CERT-VN
Name: VU#723755
External Source: CISCO
Name: 20120111 Wi-Fi Protected Setup PIN Brute Force Vulnerability
External Source: MISC
Name: http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf
US-CERT Vulnerability Note: CERT
Name: TA12-006A

Technical Details

Vulnerability Type (View All)