The xrdp-sesman service before version 0.9.13.1 can be crashed by connecting over port 3350 and supplying a malicious payload. Once the xrdp-sesman process is dead, an unprivileged attacker on the server could then proceed to start their own imposter sesman service listening on port 3350. This will allow them to capture any user credentials that are submitted to XRDP and approve or reject arbitrary login credentials. For xorgxrdp sessions in particular, this allows an unauthorized user to hijack an existing session. This is a buffer overflow attack, so there may be a risk of arbitrary code execution as well.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2020-06-30T15:55:13
Updated: 2024-08-04T07:52:20.840Z
Reserved: 2019-12-30T00:00:00
Link: CVE-2020-4044
Vulnrichment
No data.
NVD
Status : Modified
Published: 2020-06-30T16:15:16.203
Modified: 2024-11-21T05:32:12.737
Link: CVE-2020-4044
Redhat
No data.