VDB-137677 · CVE-2019-12472 · Qualys 176919

Wikimedia MediaWiki up to 1.27.5/1.30.1/1.31.1/1.32.1 Access Control $wgBlockCIDRLimit access control

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2	$0-$5k	0.00

A vulnerability has been found in Wikimedia MediaWiki up to 1.27.5/1.30.1/1.31.1/1.32.1 (Content Management System) and classified as critical. Affected by this vulnerability is an unknown functionality of the component Access Control. The manipulation of the argument $wgBlockCIDRLimit with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was disclosed 07/10/2019 (Website). The advisory is shared at lists.wikimedia.org. This vulnerability is known as CVE-2019-12472 since 05/30/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 176919 (Debian Security Update for mediawiki (DSA 4460-1)).

Upgrading to version 1.27.6, 1.30.2, 1.31.2 or 1.32.2 eliminates this vulnerability.

The entries VDB-137671, VDB-137672, VDB-137673 and VDB-137674 are pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Content Management System

Vendor

Wikimedia

Name

MediaWiki

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.27.6/1.30.2/1.31.2/1.32.2

Timelineinfo

05/30/2019 🔍
07/10/2019 +41 days 🔍
07/11/2019 +1 days 🔍
07/07/2024 +1823 days 🔍

Sourcesinfo

Advisory: lists.wikimedia.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-12472 (🔍)
GCVE (CVE): GCVE-0-2019-12472
GCVE (VulDB): GCVE-100-137677
See also: 🔍

Entryinfo

Created: 07/11/2019 11:13 AM
Updated: 07/07/2024 09:36 PM
Changes: 07/11/2019 11:13 AM (59), 07/03/2020 04:55 PM (1), 07/07/2024 09:36 PM (18)
Complete: 🔍
Cache ID: 18:ACB:40