Wifi Protected Setup Protocol: A security weakness

Wifi Protected Setup Protocol is affected by a security weakness. Exposure depends on how the affected operation is made reachable by the site. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 5.8 CVSS · cret@cert.org

NVD score 5.8 CVSS 2.0 · nvd@nist.gov

Component: Wifi Protected Setup Protocol
Plugin slug: wifi-protected-setup-protocol
Affected: See vendor advisory
Safe version: See mitigation notes
Published: Jan 06, 2012
Weakness: CWE-287 — Improper Authentication

This CVE was published Jan 06, 2012 and is one of 1 known issue for this plugin.

What to do

Update, patch or deactivate.

Update Wifi Protected Setup Protocol to a release outside the affected range, or disable and remove it until a fixed version is available.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

NVD vector: AV:N/AC:M/Au:N/C:P/I:P/A:N

References

Update, patch or deactivate.

Technical description

Primary and upstream sources