CentralAuth Extension REL1_34 on MediaWiki API api.php?action=query&meta=globaluserinfo guiuser information disclosure

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 (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in CentralAuth Extension REL1_34 on MediaWiki. Affected by this issue is some unknown functionality of the file api.php?action=query&meta=globaluserinfo of the component API. Such manipulation of the argument guiuser as part of Request leads to information disclosure. This vulnerability is documented as CVE-2020-12051. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in CentralAuth Extension REL1_34 on MediaWiki and classified as problematic. Affected by this issue is an unknown code block of the file api.php?action=query&meta=globaluserinfo of the component API. The manipulation of the argument guiuser as part of a Request 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. CVE summarizes:

The CentralAuth extension through REL1_34 for MediaWiki allows remote attackers to obtain sensitive hidden account information via an api.php?action=query&meta=globaluserinfo&guiuser= request. In other words, the information can be retrieved via the action API even though access would be denied when simply visiting wiki/Special:CentralAuth in a web browser.

The weakness was released 04/21/2020. This vulnerability is handled as CVE-2020-12051 since 04/21/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/21/2020 🔍
04/21/2020 +0 days 🔍
04/22/2020 +1 days 🔍
06/01/2024 +1501 days 🔍

Sourcesinfo

Advisory: gerrit.wikimedia.org
Status: Not defined

CVE: CVE-2020-12051 (🔍)
GCVE (CVE): GCVE-0-2020-12051
GCVE (VulDB): GCVE-100-154166

Entryinfo

Created: 04/22/2020 10:09
Updated: 06/01/2024 11:32
Changes: 04/22/2020 10:09 (38), 04/22/2020 10:14 (17), 06/01/2024 11:32 (17)
Complete: 🔍
Cache ID: 216::103

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