Vulnerability Name:

CVE-2019-16738 (CCN-167726)

Assigned:2019-08-13
Published:2019-08-13
Updated:2022-03-31
Summary:In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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): Low
Integrity (I): None
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:L/I:N/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:L/I:N/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): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-862
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2019-16738

Source: XF
Type: UNKNOWN
mediawiki-cve201916738-info-disc(167726)

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-c4cdd73c74

Source: FEDORA
Type: Mailing List, Third Party Advisory
FEDORA-2019-3ba38e1cdb

Source: CCN
Type: HomePhabricator Web page
Exposed suppressed username via Special:Redirect

Source: MISC
Type: Exploit, Issue Tracking, Patch, Third Party Advisory
https://phabricator.wikimedia.org/T230402

Source: BUGTRAQ
Type: Mailing List, Third Party Advisory
20191021 [SECURITY] [DSA 4545-1] mediawiki security update

Source: DEBIAN
Type: Third Party Advisory
DSA-4545

Source: CCN
Type: MediaWiki Web site
MediaWiki

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2019-16738

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mediawiki:mediawiki:*:*:*:*:*:*:*:* (Version <= 1.33.0)

    • Configuration 2:
  • cpe:/o:fedoraproject:fedora:30:*:*:*:*:*:*:*
  • OR cpe:/o:fedoraproject:fedora:31:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:10.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:mediawiki:mediawiki:1.33.0:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019167380000000
    V
    		CVE-2019-16738 on Ubuntu 19.04 (disco) - medium.
    2019-09-26
    oval:com.ubuntu.bionic:def:2019167380000000
    V
    		CVE-2019-16738 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-09-26
    BACK
    mediawiki mediawiki *
    fedoraproject fedora 30
    fedoraproject fedora 31
    debian debian linux 9.0
    debian debian linux 10.0
    mediawiki mediawiki 1.33.0 -