Vulnerability Name:

CVE-2022-39194 (CCN-235259)

Assigned:2022-07-18
Published:2022-07-18
Updated:2022-09-07
Summary:An issue was discovered in the MediaWiki through 1.38.2. The community configuration pages for the GrowthExperiments extension could cause a site to become unavailable due to insufficient validation when certain actions (including page moves) were performed.
CVSS v3 Severity:4.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
4.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.9 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-400
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2022-39194

Source: XF
Type: UNKNOWN
mediawiki-cve202239194-dos(235259)

Source: CCN
Type: MediaWiki Code Review
Merged 825283 : SECURITY: Don't use messages in WikiPageConfig error handler

Source: CCN
Type: Phabricator T308659
Validate lemma length in Special:NewLexeme(Alpha) and label/description/aliases length in Special:NewProperty

Source: CCN
Type: Phabricator T313205
CVE-2022-39194: Growth's Community configuration makes it possible for rogue admin to take down a site

Source: MISC
Type: Exploit, Third Party Advisory
https://phabricator.wikimedia.org/T313205

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mediawiki:mediawiki:*:*:*:*:*:*:*:* (Version <= 1.38.2)

    • * Denotes that component is vulnerable
    BACK
    mediawiki mediawiki *