MediaWiki up to 1.23.14/1.26.3/1.27.0 Parse Action api.php information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in MediaWiki up to 1.23.14/1.26.3/1.27.0. This vulnerability affects unknown code of the file api.php of the component Parse Action. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2016-6335. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in MediaWiki up to 1.23.14/1.26.3/1.27.0 (Content Management System). It has been rated as problematic. This issue affects an unknown functionality of the file api.php of the component Parse Action. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 does not generate head items in the context of a given title, which allows remote attackers to obtain sensitive information via a parse action to api.php.

The bug was discovered 04/20/2017. The weakness was disclosed 04/20/2017 (Website). It is possible to read the advisory at lists.wikimedia.org. The identification of this vulnerability is CVE-2016-6335 since 07/26/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

By approaching the search of inurl:api.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 93195 (MediaWiki 1.23.x < 1.23.15 / 1.26.x < 1.26.4 / 1.27.x < 1.27.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11684 (Mediawiki Multiple Vulnerabilities (MediaWiki Security Release: 1.27.1, 1.26.4, 1.23.15)).

Upgrading to version 1.23.15, 1.26.4 or 1.27.1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (93195). The entries VDB-100363, VDB-100364, VDB-100365 and VDB-100366 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 93195
Nessus Name: MediaWiki 1.23.x < 1.23.15 / 1.26.x < 1.26.4 / 1.27.x < 1.27.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for mediawiki FEDORA-2016-ce1678471e
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: MediaWiki 1.23.15/1.26.4/1.27.1

Timelineinfo

07/26/2016 🔍
08/23/2016 +28 days 🔍
08/29/2016 +6 days 🔍
04/20/2017 +234 days 🔍
04/20/2017 +0 days 🔍
04/20/2017 +0 days 🔍
04/21/2017 +1 days 🔍
09/18/2020 +1246 days 🔍

Sourcesinfo

Product: mediawiki.org

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

CVE: CVE-2016-6335 (🔍)
GCVE (CVE): GCVE-0-2016-6335
GCVE (VulDB): GCVE-100-100367
OSVDB: - CVE-2016-6335 - MediaWiki - Information Disclosure Issue

See also: 🔍

Entryinfo

Created: 04/21/2017 09:55
Updated: 09/18/2020 18:59
Changes: 04/21/2017 09:55 (73), 09/18/2020 18:59 (3)
Complete: 🔍
Cache ID: 216::103

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