Debian DLA-2847-1 : mediawiki - LTS security update

high Nessus Plugin ID 156234

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2847 advisory.

A security issue was discovered in MediaWiki, a website engine for collaborative work: Missing validation in the mcrundo action may allow allow an attacker to leak page content from private wikis or to bypass edit restrictions. For additional information please refer to https://www.mediawiki.org/wiki/2021-12_security_release/FAQ For Debian 9 stretch, this problem has been fixed in version 1:1.27.7-1+deb9u11. We recommend that you upgrade your mediawiki packages. For the detailed security status of mediawiki please refer to its security tracker page at: https://security- tracker.debian.org/tracker/mediawiki Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at:
https://wiki.debian.org/LTS

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the mediawiki packages.

For Debian 9 stretch, this problem has been fixed in version 1

Plugin Details

Severity: High

ID: 156234

File Name: debian_DLA-2847.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/21/2021

Updated: 1/24/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2021-44858

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:mediawiki-classes, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:mediawiki

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/21/2021

Vulnerability Publication Date: 12/20/2021

Reference Information

CVE: CVE-2021-44858

Detections

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