Threat database

A vulnerability in wpa_supplicant versions prior to 2.12 allows a local attacker to bypass proper network context and AKMP matching for PMKSA caching due to missing validation in the driver-based PMKSA selection path. This issue affects multiple SUSE and Ubuntu builds across various architectures. The vulnerability has a CVSS score of 7.1, indicating medium severity.

The implementation of PEAP in wpa_supplicant through 2.10 allows authentication bypass. For a successful attack, wpa_supplicant must be configured to not verify the network's TLS certificate during Phase 1 authentication, and an eap_peap_decrypt vulnerability can then be abused to skip Phase 2 authentication. The attack vector is sending an EAP-TLV Success packet instead of starting Phase 2. This allows an adversary to impersonate Enterprise Wi-Fi networks.