The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
The product does not properly verify that the source of data or communication is valid.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Hostapd | W1.fi | * | 2.4 (including) |
| Hostapd | W1.fi | 2.5 (including) | 2.7 (including) |
| Wpa_supplicant | W1.fi | * | 2.4 (including) |
| Wpa_supplicant | W1.fi | 2.5 (including) | 2.7 (including) |
| Wpa | Ubuntu | bionic | * |
| Wpa | Ubuntu | cosmic | * |
| Wpa | Ubuntu | devel | * |
| Wpa | Ubuntu | disco | * |
| Wpa | Ubuntu | trusty | * |
| Wpa | Ubuntu | upstream | * |
| Wpa | Ubuntu | xenial | * |