CVE-2023-40184

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

xrdp is an open source remote desktop protocol (RDP) server. In versions prior to 0.9.23 improper handling of session establishment errors allows bypassing OS-level session restrictions. The `auth_start_session` function can return non-zero (1) value on, e.g., PAM error which may result in in session restrictions such as max concurrent sessions per user by PAM (ex ./etc/security/limits.conf) to be bypassed. Users (administrators) don't use restrictions by PAM are not affected. This issue has been addressed in release version 0.9.23. Users are advised to upgrade. There are no known workarounds for this issue.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-755

Affected software

No affected versions have been published.

Timeline

Published: Aug 30, 2023
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2023

CVE-2023-401858.6shescape is simple shell escape library for JavaScript. This may impact users that use Shescape on Windows in a threaded context. The vulner CVE-2023-401869.8FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a CVE-2023-401879.8FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions of the 3.x beta CVE-2023-401889.1FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. Affected versions are subject to a CVE-2023-40198.8The Media from FTP WordPress plugin before 11.17 does not properly limit who can use the plugin, which may allow users with author+ privileg CVE-2023-401916.1Reflected cross-site scripting (XSS) vulnerability in the instance settings for Accounts in Liferay Portal 7.4.3.44 through 7.4.3.97, and Li CVE-2023-401938.0Deco M4 firmware versions prior to 'Deco M4(JP)_V2_1.5.8 Build 20230619' allows a network-adjacent authenticated attacker to execute arbitra CVE-2023-401948.8An arbitrary file creation vulnerability exists in the Javascript exportDataObject API of Foxit Reader 12.1.3.15356 due to mistreatment of w CVE-2023-401958.8Deserialization of Untrusted Data, Inclusion of Functionality from Untrusted Control Sphere vulnerability in Apache Software Foundation Apac CVE-2023-401966.1Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in ImageRecycle ImageRecycle pdf & image compression plugin <= 3.1.11 versions.CVE-2023-401975.4Auth. (contributor+) Stored Cross-Site Scripting (XSS) vulnerability in Devaldi Ltd flowpaper plugin <= 1.9.9 versions.CVE-2023-401986.5Cross-Site Request Forgery (CSRF) vulnerability in Antsanchez Easy Cookie Law plugin <= 3.1 versions.