The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.

Vulnerability of MediaWiki: open redirect via Title_blacklist

Synthesis of the vulnerability

An attacker can deceive the user via Title_blacklist of MediaWiki, in order to redirect him to a malicious site.
Severity of this bulletin: 1/4.
Creation date: 30/12/2019.
Références of this threat: CVE-2019-19709, DSA-4592-1, VIGILANCE-VUL-31239.

Description of the vulnerability

The MediaWiki product offers a web service.

However, the web service accepts to redirect the victim with no warning, to an external site indicated by the attacker.

An attacker can therefore deceive the user via Title_blacklist of MediaWiki, in order to redirect him to a malicious site.
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This security vulnerability impacts software or systems such as Debian.

Our Vigil@nce team determined that the severity of this computer weakness bulletin is low.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this security note.

Solutions for this threat

Debian 9/10: new mediawiki packages.
New packages are available:
  Debian 9: mediawiki 1:1.27.7-1~deb9u3
  Debian 10: mediawiki 1:1.31.6-1~deb10u1
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