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GoogleOSV:BIT-MEDIAWIKI-2023-45367

HistoryMar 06, 2024 - 10:58 a.m.

BIT-mediawiki-2023-45367

2024-03-0610:58:28

Google

osv.dev

issue

checkuser

extension

mediawiki

denial of service

useragent

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.5%

JSON

An issue was discovered in the CheckUser extension for MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. A user can use a rest.php/checkuser/v0/useragent-clienthints/revision/ URL to store an arbitrary number of rows in cu_useragent_clienthints, leading to a denial of service.

CPENameOperatorVersion
mediawikilt1.35.12
mediawikige1.40.0
mediawikilt1.39.5
mediawikile1.40.0
mediawikige1.36.0

Name	Operator	Version
mediawiki	lt	1.35.12
mediawiki	ge	1.40.0
mediawiki	lt	1.39.5
mediawiki	le	1.40.0
mediawiki	ge	1.36.0

References

phabricator.wikimedia.org/T344923

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

13.5%

JSON

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