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CVE-2022-24883

CRITICALCVSS 9.8/10EPSS 2.17%

Last modified

CVE-2022-24883 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 2.17% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.17%

80.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FreerdpFreerdp< 2.7.0
FedoraprojectFedora34
FedoraprojectFedora35
FedoraprojectFedora36

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-24883?
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.
How severe is CVE-2022-24883?
CVE-2022-24883 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.17% probability of exploitation in the next 30 days.
How do I fix CVE-2022-24883?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-24883?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST