A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with any key known to it. By encrypting forged kpasswd requests with its own key, a user can change other users passwords, enabling full domain takeover.
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Samba | Samba | 4.3.0 (including) | 4.14.14 (excluding) |
| Samba | Samba | 4.15.0 (including) | 4.15.9 (excluding) |
| Samba | Samba | 4.16.0 (including) | 4.16.4 (excluding) |
| Samba | Ubuntu | bionic | * |
| Samba | Ubuntu | devel | * |
| Samba | Ubuntu | esm-infra/bionic | * |
| Samba | Ubuntu | focal | * |
| Samba | Ubuntu | impish | * |
| Samba | Ubuntu | jammy | * |
| Samba | Ubuntu | kinetic | * |
| Samba | Ubuntu | lunar | * |
| Samba | Ubuntu | mantic | * |
| Samba | Ubuntu | noble | * |
| Samba | Ubuntu | oracular | * |
| Samba | Ubuntu | trusty/esm | * |