Auth bypass in Wi-Fi Wifi Protected Setup Protocol
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.033 (88.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- code.google.com/p/reaver-wps/
- sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerabi…
- sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf
- www.kb.cert.org/vuls/id/723755 (US Government Resource, third-party-advisory)
- www.us-cert.gov/cas/techalerts/TA12-006A.html (US Government Resource, third-party-advisory)
- tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20120111… (vendor-advisory)
Frequently asked questions
- What is CVE-2011-5053?
- CVE-2011-5053 is a vulnerability in Wi-Fi Wifi Protected Setup Protocol, classified under Improper Authentication. Published 2012-01-06.
- Is CVE-2011-5053 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.