CVE-2022-23613: Privilege escalation on xrdp

Published Feb 7, 2022

Updated

xrdp is an open source remote desktop protocol (RDP) server. In affected versions an integer underflow leading to a heap overflow in the sesman server allows any unauthenticated attacker which is able to locally access a sesman server to execute code as root. This vulnerability has been patched in version 0.9.18.1 and above. Users are advised to upgrade. There are no known workarounds.

Affected Software

4 affected components

Neutrinolabs Xrdp=0.9.17

Neutrinolabs Xrdp=0.9.18

Fedoraproject Fedora=34

Fedoraproject Fedora=35

Remediation

Patch Available

https://github.com/neutrinolabs/xrdp/commit/4def30ab8ea445cdc06832a44c3ec40a506a0ffa

Event History

Feb 7, 2022

CVE Published

via MITRE·09:40 PM

Data Sourced

via MITRE·09:40 PM

DescriptionSeverityWeakness

Frequently Asked Questions

What is CVE-2022-23613?

CVE-2022-23613 is a vulnerability in the xrdp remote desktop protocol (RDP) server that allows an unauthenticated attacker with local access to execute code as root.

How severe is CVE-2022-23613?

CVE-2022-23613 has a severity score of 7.8 (high).

Which versions of xrdp are affected by CVE-2022-23613?

Versions 0.9.17 and 0.9.18 of the Neutrinolabs Xrdp server are affected by CVE-2022-23613.

How can an attacker exploit CVE-2022-23613?

An attacker with local access to the sesman server can exploit CVE-2022-23613 through an integer underflow leading to a heap overflow, allowing them to execute code as root.

Has CVE-2022-23613 been patched?

Yes, CVE-2022-23613 has been patched in version 0.9.18 of the Neutrinolabs Xrdp server.