CVE-2012-4380 Auth bypass in n/a

High 7.5 Published Updated

Remote attackers can bypass IP blocking restrictions in the GlobalBlocking extension to create unauthorized accounts in MediaWiki.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2012-4380?

CVE-2012-4380 is a high-severity authentication bypass vulnerability in Mediawiki Mediawiki, published on 19 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

MediaWiki before 1.18.5, and 1.19.x before 1.19.2 allows remote attackers to bypass GlobalBlocking extension IP address blocking and create an account via unspecified vectors.

Weakness: CWE-284

Which versions are affected by CVE-2012-4380?

It affects 1 product.

Products include Mediawiki Mediawiki.

How do I fix CVE-2012-4380?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2012-4380 being exploited?

There is no known exploitation of CVE-2012-4380 in the wild and no public exploit code.

All Mediawiki Mediawiki vulnerabilities

Sources

Also known as DEBIAN-CVE-2012-4380, GHSA-4fr9-73w7-j6w3.

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