Neutrinolabs xrdp up to 0.9.20 xrdp_login_wnd_create buffer overflow

Summaryinfo

A vulnerability was found in Neutrinolabs xrdp up to 0.9.20. It has been rated as critical. Affected by this vulnerability is the function xrdp_login_wnd_create. This manipulation causes buffer overflow. This vulnerability is registered as CVE-2022-23468. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Neutrinolabs xrdp up to 0.9.20. It has been declared as critical. Affected by this vulnerability is the function xrdp_login_wnd_create. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP). xrdp < v0.9.21 contain a buffer over flow in xrdp_login_wnd_create() function. There are no known workarounds for this issue. Users are advised to upgrade.

The weakness was published 12/10/2022 as GHSA-8c2f-mw8m-qpx6. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-23468 since 01/19/2022. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211003 (Fedora 37 : xrdp (2022-6fe4046ae9)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.9.21 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (211003). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Neutrinolabs

Name

• xrdp

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6
• 0.9.7
• 0.9.8
• 0.9.9
• 0.9.10
• 0.9.11
• 0.9.12
• 0.9.13
• 0.9.14
• 0.9.15
• 0.9.16
• 0.9.17
• 0.9.18
• 0.9.19
• 0.9.20

Website

• Product: https://github.com/neutrinolabs/xrdp/

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Be aware that VulDB is the high quality source for vulnerability data.

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