MediaWiki up to 1.27.3/1.28.2/1.29.1 Raw Message Parameter Extension input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in MediaWiki up to 1.27.3/1.28.2/1.29.1. This affects an unknown function of the component Raw Message Parameter Extension. This manipulation causes input validation. This vulnerability is tracked as CVE-2017-8811. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in MediaWiki up to 1.27.3/1.28.2/1.29.1 (Content Management System). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Raw Message Parameter Extension. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity. The summary by CVE is:

The implementation of raw message parameter expansion in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows HTML mangling attacks.

The bug was discovered 11/14/2017. The weakness was disclosed 11/15/2017 (Website). It is possible to read the advisory at lists.wikimedia.org. This vulnerability is known as CVE-2017-8811 since 05/07/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104693 (FreeBSD : mediawiki -- multiple vulnerabilities (298829e2-ccce-11e7-92e4-000c29649f92)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176216 (Debian Security Update for mediawiki (DSA 4036-1)).

Upgrading to version 1.27.4, 1.28.3 or 1.29.2 eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104693). The entries VDB-102879, VDB-109444, VDB-109445 and VDB-109446 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104693
Nessus Name: FreeBSD : mediawiki -- multiple vulnerabilities (298829e2-ccce-11e7-92e4-000c29649f92)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 863854
OpenVAS Name: MediaWiki Multiple Vulnerabilities - November17 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: MediaWiki 1.27.4/1.28.3/1.29.2

Timelineinfo

05/07/2017 🔍
11/14/2017 +191 days 🔍
11/15/2017 +1 days 🔍
11/15/2017 +0 days 🔍
11/16/2017 +1 days 🔍
11/19/2017 +3 days 🔍
11/20/2017 +1 days 🔍
01/23/2021 +1160 days 🔍

Sourcesinfo

Product: mediawiki.org

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

CVE: CVE-2017-8811 (🔍)
GCVE (CVE): GCVE-0-2017-8811
GCVE (VulDB): GCVE-100-109447

OVAL: 🔍

SecurityTracker: 1039812

See also: 🔍

Entryinfo

Created: 11/16/2017 10:52
Updated: 01/23/2021 18:41
Changes: 11/16/2017 10:52 (75), 12/06/2019 19:48 (3), 01/23/2021 18:41 (3)
Complete: 🔍
Cache ID: 216::103

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