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 networks 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.
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Debian_linux | Debian | 10.0 (including) | 10.0 (including) |
| Fedora | Fedoraproject | 38 (including) | 38 (including) |
| Fedora | Fedoraproject | 39 (including) | 39 (including) |
| Enterprise_linux | Redhat | 8.0 (including) | 8.0 (including) |
| Enterprise_linux | Redhat | 9.0 (including) | 9.0 (including) |
| Wpa | Ubuntu | bionic | * |
| Wpa | Ubuntu | mantic | * |
| Wpa | Ubuntu | trusty | * |
| Wpa | Ubuntu | xenial | * |
| Red Hat Enterprise Linux 9 | RedHat | wpa_supplicant-1:2.10-5.el9 | * |