CVE-2022-24883: FreeRDP Server authentication might allow invalid credentials to pass
First published: Tue Apr 26 2022(Updated: )
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.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FreeRDP FreeRDP | <2.7.0 | |
| Fedoraproject Fedora | =34 | |
| Fedoraproject Fedora | =35 | |
| Fedoraproject Fedora | =36 |
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Reference Links
- https://github.com/FreeRDP/FreeRDP/commit/4661492e5a617199457c8074bad22f766a116cdc
- https://github.com/FreeRDP/FreeRDP/commit/6f473b273a4b6f0cb6aca32b95e22fd0de88e144
- https://github.com/FreeRDP/FreeRDP/releases/tag/2.7.0
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qxm3-v2r6-vmwf
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AELSWWBAM2YONRPGLWVDY6UNTLJERJYL/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DOYKBQOHSRM7JQYUIYUWFOXI2JZ2J5RD/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PZWR6KSIKXO4B2TXBB3WH6YTNYHN46OY/
- https://security.gentoo.org/glsa/202210-24
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AELSWWBAM2YONRPGLWVDY6UNTLJERJYL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DOYKBQOHSRM7JQYUIYUWFOXI2JZ2J5RD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZWR6KSIKXO4B2TXBB3WH6YTNYHN46OY/
- https://lists.debian.org/debian-lts-announce/2023/11/msg00010.html
Frequently Asked Questions
What is CVE-2022-24883?
CVE-2022-24883 is a vulnerability that affects the FreeRDP software prior to version 2.7.0.
How does CVE-2022-24883 affect the FreeRDP software?
CVE-2022-24883 allows for successful server-side authentication against an invalid SAM file path if configured.
Which versions of FreeRDP are affected by CVE-2022-24883?
FreeRDP versions up to but excluding 2.7.0 are affected by CVE-2022-24883.
Are FreeRDP-based clients affected by CVE-2022-24883?
No, FreeRDP based clients are not affected by CVE-2022-24883.
How severe is CVE-2022-24883?
CVE-2022-24883 has a severity rating of 9.8, which is considered critical.
How can I fix CVE-2022-24883?
To fix CVE-2022-24883, users should update to FreeRDP version 2.7.0 or later.
Is there any additional information about CVE-2022-24883?
Yes, more information about CVE-2022-24883 can be found in the references provided: [Reference 1](https://github.com/FreeRDP/FreeRDP/commit/4661492e5a617199457c8074bad22f766a116cdc), [Reference 2](https://github.com/FreeRDP/FreeRDP/commit/6f473b273a4b6f0cb6aca32b95e22fd0de88e144), [Reference 3](https://github.com/FreeRDP/FreeRDP/releases/tag/2.7.0).
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