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Vulnerability · Published Apr 26, 2022 · Assigned by GitHub_M

CVE-2022-24883FreeRDP Server authentication might allow invalid credentials to pass

High 7.4

In plain English

A high-severity improper authentication in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.4High
Exploit odds (30 days)2.3%top 16.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12freerdp22.7.0+dfsg1-1DEBIAN-CVE-2022-24883
Ubuntu:22.04:LTSfreerdp22.6.1+dfsg1-3ubuntu2.1USN-5461-1
Ubuntu:22.04:LTSfreerdp22.6.1+dfsg1-3ubuntu2.1UBUNTU-CVE-2022-24883

Affected products (as reported)

VendorProductVersions
FreeRDP FreeRDP < 2.7.0

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References