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CVE-2021-32722— Uncontrolled Resource Consumption in GlobalNewFiles

Quick assessment

Affected
miraheze GlobalNewFiles
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GlobalNewFiles是美国维基媒体（MediaWiki）基金会的一个扩展，提供了一个特殊的页面在全球范围内查看wiki farm的所有文件。 GlobalNewFiles 存在资源管理错误漏洞，该漏洞源于GlobalNewFiles的所有现有版本都受到一个不受控制的资源消耗漏洞的影响。攻击者可利用该漏洞引起短时间内大量的页面移动可能会使数据库服务器不堪重负。

CVSS 6.5 · Medium EPSS 1.33% · P68

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-32722

Vulnerability Information
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Vulnerability Title
Uncontrolled Resource Consumption in GlobalNewFiles
Source: CVE Program / CVE List V5
Vulnerability Description
GlobalNewFiles is a mediawiki extension. Versions prior to 48be7adb70568e20e961ea1cb70904454a671b1d are affected by an uncontrolled resource consumption vulnerability. A large amount of page moves within a short space of time could overwhelm Database servers due to improper handling of load balancing and a lack of an appropriate index. As a workaround, one may avoid use of the extension unless additional rate limit at the MediaWiki level or via PoolCounter / MySQL is enabled. A patch is available in version 48be7adb70568e20e961ea1cb70904454a671b1d.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
MediaWiki GlobalNewFiles 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GlobalNewFiles是美国维基媒体（MediaWiki）基金会的一个扩展，提供了一个特殊的页面在全球范围内查看wiki farm的所有文件。 GlobalNewFiles 存在资源管理错误漏洞，该漏洞源于GlobalNewFiles的所有现有版本都受到一个不受控制的资源消耗漏洞的影响。攻击者可利用该漏洞引起短时间内大量的页面移动可能会使数据库服务器不堪重负。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
miraheze GlobalNewFiles < 48be7adb70568e20e961ea1cb70904454a671b1d -

II. Public POCs for CVE-2021-32722

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III. Intelligence Information for CVE-2021-32722

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Patches & Fixes for CVE-2021-32722 (2)

Vendor Advisories for CVE-2021-32722 (1)

Other References for CVE-2021-32722 (1)

IV. Related Vulnerabilities

Same product: GlobalNewFiles
Same vendor: miraheze
Same weakness: CWE-400

V. Comments for CVE-2021-32722

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