Vulnerability Name:

CVE-2019-12472 (CCN-162522)

Assigned:2019-06-06
Published:2019-06-06
Updated:2020-08-24
Summary:An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/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): High
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/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): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2019-12472

Source: XF
Type: UNKNOWN
mediawiki-cve201912472-sec-bypass(162522)

Source: CCN
Type: Wikimedia Mailing List, Thu Jun 6 15:50:05 UTC 2019
[Wikitech-l] Security and maintenance release: 1.27.6 / 1.30.2 / 1.31.2 / 1.32.2

Source: CONFIRM
Type: Patch, Third Party Advisory
https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html

Source: MISC
Type: Issue Tracking, Third Party Advisory
https://phabricator.wikimedia.org/T199540

Source: CCN
Type: MediaWiki Web site
MediaWiki

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mediawiki:mediawiki:*:*:*:*:*:*:*:* (Version >= 1.18.0 and < 1.27.6)
  • OR cpe:/a:mediawiki:mediawiki:*:*:*:*:*:*:*:* (Version >= 1.30.0 and < 1.30.2)
  • OR cpe:/a:mediawiki:mediawiki:*:*:*:*:*:*:*:* (Version >= 1.31.0 and < 1.31.2)
  • OR cpe:/a:mediawiki:mediawiki:*:*:*:*:*:*:*:* (Version >= 1.32.0 and < 1.32.2)

    • Configuration CCN 1:
  • cpe:/a:mediawiki:mediawiki:1.27.5:*:*:*:*:*:*:*
  • OR cpe:/a:mediawiki:mediawiki:1.30.1:*:*:*:*:*:*:*
  • OR cpe:/a:mediawiki:mediawiki:1.31.1:*:*:*:*:*:*:*
  • OR cpe:/a:mediawiki:mediawiki:1.32.1:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.cosmic:def:2019124720000000
    V
    		CVE-2019-12472 on Ubuntu 18.10 (cosmic) - medium.
    2019-07-10
    oval:com.ubuntu.bionic:def:2019124720000000
    V
    		CVE-2019-12472 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-07-10
    oval:com.ubuntu.disco:def:2019124720000000
    V
    		CVE-2019-12472 on Ubuntu 19.04 (disco) - medium.
    2019-07-10
    BACK
    mediawiki mediawiki *
    mediawiki mediawiki *
    mediawiki mediawiki *
    mediawiki mediawiki *
    mediawiki mediawiki 1.27.5
    mediawiki mediawiki 1.30.1
    mediawiki mediawiki 1.31.1
    mediawiki mediawiki 1.32.1