FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 2.7.0, server side authentication against a `SAM` file might be successful for invalid credentials if the server has configured an invalid `SAM` file path. FreeRDP based clients are not affected. RDP server implementations using FreeRDP to authenticate against a `SAM` file are affected. Version 2.7.0 contains a fix for this issue. As a workaround, use custom authentication via `HashCallback` and/or ensure the `SAM` database path configured is valid and the application has file handles left.
https://github.com/FreeRDP/FreeRDP/releases/tag/2.7.0
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qxm3-v2r6-vmwf
https://github.com/FreeRDP/FreeRDP/commit/4661492e5a617199457c8074bad22f766a116cdc
https://github.com/FreeRDP/FreeRDP/commit/6f473b273a4b6f0cb6aca32b95e22fd0de88e144
Source: MITRE
Published: 2022-04-26
Updated: 2022-11-16
Type: CWE-287
Base Score: 6.8
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL