CVE-2012-2356 Moodle Authentication Bypass in Question-Bank

Medium 4.0 Published Updated

Authenticated users can bypass capability checks to save questions in Moodle, allowing unauthorized data modification.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2012-2356?

CVE-2012-2356 is a medium-severity missing authorization vulnerability in Moodle Moodle, published on 21 Jul 2012. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The question-bank functionality in Moodle 2.1.x before 2.1.6 and 2.2.x before 2.2.3 allows remote authenticated users to bypass intended capability requirements and save questions via a save_question action.

Weakness: CWE-264

Which versions are affected by CVE-2012-2356?

4 open source packages ship an affected version, including moodle/moodle. It affects 1 product.

PackageAffectedFixed in
moodle/moodle PackagistFrom 2.12.1.6
moodle/moodle PackagistFrom 2.12.1.6
moodle/moodle PackagistFrom 2.22.2.3
moodle/moodle PackagistFrom 2.22.2.3

Products include Moodle Moodle.

How do I fix CVE-2012-2356?

Upgrade moodle/moodle to a fixed version for your release line: 2.1.6 or 2.2.3.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2012-2356 being exploited?

There is no known exploitation of CVE-2012-2356 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as GHSA-3rqj-jchw-9cc7.

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