CVE-2020-4044
Vulnerability from cvelistv5
Published
2020-06-30 15:55
Modified
2024-08-04 07:52
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
security-advisories@github.comhttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00036.html
security-advisories@github.comhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00037.html
security-advisories@github.comhttps://github.com/neutrinolabs/xrdp/commit/0c791d073d0eb344ee7aaafd221513dc9226762cPatch, Third Party Advisory
security-advisories@github.comhttps://github.com/neutrinolabs/xrdp/releases/tag/v0.9.13.1Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j9fv-6fwf-p3g4Third Party Advisory
security-advisories@github.comhttps://lists.debian.org/debian-lts-announce/2020/08/msg00015.html
security-advisories@github.comhttps://www.debian.org/security/2020/dsa-4737
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00036.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00037.html
af854a3a-2127-422b-91ae-364da2661108https://github.com/neutrinolabs/xrdp/commit/0c791d073d0eb344ee7aaafd221513dc9226762cPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.13.1Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j9fv-6fwf-p3g4Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/08/msg00015.html
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4737
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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