Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS : FreeRDP vulnerabilities (USN-5461-1)

critical Nessus Plugin ID 161908

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 21.10 / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5461-1 advisory.

- FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). In versions prior to 2.7.0, NT LAN Manager (NTLM) authentication does not properly abort when someone provides and empty password value. This issue affects FreeRDP based RDP Server implementations. RDP clients are not affected. The vulnerability is patched in FreeRDP 2.7.0. There are currently no known workarounds. (CVE-2022-24882)

- 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. (CVE-2022-24883)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-5461-1

Plugin Details

Severity: Critical

ID: 161908

File Name: ubuntu_USN-5461-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 6/6/2022

Updated: 10/16/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2022-24883

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:freerdp2-dev, p-cpe:/a:canonical:ubuntu_linux:freerdp2-shadow-x11, p-cpe:/a:canonical:ubuntu_linux:freerdp2-wayland, p-cpe:/a:canonical:ubuntu_linux:freerdp2-x11, p-cpe:/a:canonical:ubuntu_linux:libfreerdp-client2-2, p-cpe:/a:canonical:ubuntu_linux:libfreerdp-server2-2, p-cpe:/a:canonical:ubuntu_linux:libfreerdp-shadow-subsystem2-2, p-cpe:/a:canonical:ubuntu_linux:libfreerdp-shadow2-2, p-cpe:/a:canonical:ubuntu_linux:libfreerdp2-2, p-cpe:/a:canonical:ubuntu_linux:libuwac0-0, p-cpe:/a:canonical:ubuntu_linux:libuwac0-dev, p-cpe:/a:canonical:ubuntu_linux:libwinpr-tools2-2, p-cpe:/a:canonical:ubuntu_linux:libwinpr2-2, p-cpe:/a:canonical:ubuntu_linux:libwinpr2-dev, p-cpe:/a:canonical:ubuntu_linux:winpr-utils

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/6/2022

Vulnerability Publication Date: 4/26/2022

Reference Information

CVE: CVE-2022-24882, CVE-2022-24883

USN: 5461-1