CVE-2020-4044
Cisco XRDP Buffer Overflow Vulnerability
Description
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.
INFO
Published Date :
June 30, 2020, 4:15 p.m.
Last Modified :
Aug. 14, 2020, 9:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-4044.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-4044 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-4044 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 14, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00037.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 09, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/08/msg00015.html [No Types Assigned] -
CVE Modified by [email protected]
Jul. 30, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4737 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 19, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00036.html [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 13, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/neutrinolabs/xrdp/commit/0c791d073d0eb344ee7aaafd221513dc9226762c No Types Assigned https://github.com/neutrinolabs/xrdp/commit/0c791d073d0eb344ee7aaafd221513dc9226762c Patch, Third Party Advisory Changed Reference Type https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.13.1 No Types Assigned https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.13.1 Release Notes, Third Party Advisory Changed Reference Type https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j9fv-6fwf-p3g4 No Types Assigned https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j9fv-6fwf-p3g4 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:* versions up to (excluding) 0.9.13.1 -
CPE Deprecation Remap by [email protected]
Jul. 08, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:xrdp:xrdp:*:*:*:*:*:*:*:* versions from (excluding) 0.9.13.1 OR *cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:* versions from (excluding) 0.9.13.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-4044 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-4044
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.23906
percentile