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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:135500
[Eng]
Version
3
Class
vulnerability
ALTXid
330791
Language
Russian
Severity
High
Title
openSUSE -- уязвимость в xrdp (CVE-2020-4044)
Description
В продукте xrdp обнаружена уязвимость CVE-2020-4044.
Family
unix
Platform
openSUSE Leap 15.1
openSUSE Leap 15.2
Product
xrdp
Reference
FSTEC: BDU:2021-03635
FSTEC: BDU:2021-03635
Id:
BDU:2021-03635
Reference:
https://bdu.fstec.ru/vul/2021-03635
VENDOR: openSUSE-SU-2020:1200-1
VENDOR: openSUSE-SU-2020:1200-1
Id:
openSUSE-SU-2020:1200-1
Reference:
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00037.html
CVE: CVE-2020-4044
CVE: CVE-2020-4044
Id:
CVE-2020-4044
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-4044
Comment
: 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.
CVSSv2 Score:
4.6
Access vector:
LOCAL
Access complexity:
LOW
Authentication:
NONE
Confidentiality impact:
PARTIAL
Integrity impact:
PARTIAL
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSSv3 Score:
7.8
Attack vector:
LOCAL
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
HIGH
Integrity impact:
HIGH
Availability impact:
HIGH
CVSSv3 Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE:
121 (Stack-based Buffer Overflow)
References:
https://github.com/neutrinolabs/xrdp/releases/tag/v0.9.13.1 (MISC)
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j9fv-6fwf-p3g4 (CONFIRM)
https://github.com/neutrinolabs/xrdp/commit/0c791d073d0eb344ee7aaafd221513dc9226762c (MISC)
openSUSE-SU-2020:0999 (SUSE)
DSA-4737 (DEBIAN)
[debian-lts-announce] 20200809 [SECURITY] [DLA 2319-1] xrdp security update (MLIST)
openSUSE-SU-2020:1200 (SUSE)
VENDOR: openSUSE-SU-2020:0999-1
VENDOR: openSUSE-SU-2020:0999-1
Id:
openSUSE-SU-2020:0999-1
Reference:
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00036.html
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