SB2018092102 - Multiple vulnerabilities in MediaWiki

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Main Vulnerability Database SB2018092102

SB2018092102 - Multiple vulnerabilities in MediaWiki

Published: September 21, 2018

Security Bulletin ID SB2018092102
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Security restrictions bypass (CVE-ID: CVE-2018-0503)

The vulnerability allows a remote authenticated attacker to bypass certain security restrictions.

The vulnerability exists due to value of "$wgRateLimits" overrides setting for "newbie" users. A remote authenticated attacker can bypass intended limits.


2) Improper access control (CVE-ID: CVE-2018-0504)

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

The vulnerability exists due to incorrect validation of user privileges when log event is partially hidden. A remote authenticated attacker can access sensitive information from the log event via the 'Special:Redirect/logid' function.


3) Improper access control (CVE-ID: CVE-2018-0505)

The vulnerability allows a remote authenticated attacker to bypass certain security restrictions.

The vulnerability exists due to incorrect validation of user privileges. A remote authenticated user with privileges to change user rights can bypass certain security controls.


Remediation

Install update from vendor's website.

References