CVE-2023-40184

CVSS V2 None CVSS V3 None
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.
Overview
  • CVE ID
  • CVE-2023-40184
  • Assigner
  • GitHub_M
  • Vulnerability Status
  • PUBLISHED
  • Published Version
  • 2023-08-30T17:48:30.552Z
  • Last Modified Date
  • 2023-08-30T17:48:30.552Z
Weakness Enumerations
CWE URL
CWE-755 http://cwe.mitre.org/data/definitions/755.html
References
Reference URL Reference Tags
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-f489-557v-47jq x_refsource_CONFIRM
https://github.com/neutrinolabs/xrdp/commit/a111a0fdfe2421ef600e40708b5f0168594cfb23 x_refsource_MISC
https://github.com/neutrinolabs/xrdp/blame/9bbb2ec68f390504c32f2062847aa3d821a0089a/sesman/sesexec/session.c#L571C5-L571C19 x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5IXMQODV3OIJ7DRQBUQV7PUKNT7SH36/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SOT237TIHTHPX5YNIWLVNINOEYC7WMG2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/URO3FKTFBPNKFARAQBEJLI4MH6YS35P5/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2023-40184
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-40184
History
Created Old Value New Value Data Type Notes
2024-06-25 02:26:57 Added to TrackCVE