SB2019071035 - Multiple vulnerabilities in MediaWiki MediaWiki

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Main Vulnerability Database SB2019071035

SB2019071035 - Multiple vulnerabilities in MediaWiki MediaWiki

Published: July 10, 2019 Updated: July 17, 2020

Security Bulletin ID SB2019071035
Severity
High
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 43% Medium 43% Low 14%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 secuirty vulnerabilities.


1) Improper access control (CVE-ID: CVE-2019-12469)

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted request and gain unauthorized access to the affected application.


2) Improper access control (CVE-ID: CVE-2019-12470)

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted request and gain unauthorized access to the affected application.


3) Cross-site scripting (CVE-ID: CVE-2019-12471)

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Wikimedia MediaWiki 1.30.0 through 1.32.1 has XSS. Loading user JavaScript from a non-existent account allows anyone to create the account, and perform XSS on users loading that script. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.


4) Improper access control (CVE-ID: CVE-2019-12472)

The vulnerability allows a remote non-authenticated attacker to manipulate data.

An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.


5) Input validation error (CVE-ID: CVE-2019-12473)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Wikimedia MediaWiki 1.27.0 through 1.32.1 might allow DoS. Passing invalid titles to the API could cause a DoS by querying the entire watchlist table. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.


6) Information disclosure (CVE-ID: CVE-2019-12474)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

Wikimedia MediaWiki 1.23.0 through 1.32.1 has an information leak. Privileged API responses that include whether a recent change has been patrolled may be cached publicly. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.


7) Improper access control (CVE-ID: CVE-2019-12467)

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted request and gain unauthorized access to the affected application.


Remediation

Install update from vendor's website.

References