Debian DLA-2504-1 : mediawiki security update

medium Nessus Plugin ID 144574

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Synopsis

The remote Debian host is missing a security update.

Description

Multiple security issues were discovered in MediaWiki, a website engine for collaborative work.

CVE-2020-15005

Private wikis behind a caching server using the img_auth.php image authorization security feature may have had their files cached publicly, so any unauthorized user could view them.

CVE-2020-35477

Blocks legitimate attempts to hide log entries in some situations.

CVE-2020-35479

Allows XSS via BlockLogFormatter.php. Language::translateBlockExpiry itself does not escape in all code paths. For example, the return of Language::userTimeAndDate is is always unsafe for HTML in a month value.

CVE-2020-35480

Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers.

For Debian 9 stretch, these problems have been fixed in version 1:1.27.7-1~deb9u7.

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

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected mediawiki, and mediawiki-classes packages.

Plugin Details

Severity: Medium

ID: 144574

File Name: debian_DLA-2504.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 12/23/2020

Updated: 1/31/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2020-35480

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

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

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

CVSS Score Source: CVE-2020-35479

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/22/2020

Vulnerability Publication Date: 6/24/2020

Reference Information

CVE: CVE-2020-15005, CVE-2020-35477, CVE-2020-35479, CVE-2020-35480

Detections

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