CVE-2012-3387 Moodle Authentication Bypass in File Upload

Medium 4.0 Published Updated

Authenticated users can bypass file upload restrictions by omitting client-side checks, allowing unauthorized alias creation in Moodle.

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-2012-3387?

CVE-2012-3387 is a medium-severity vulnerability in Moodle Moodle, published on 23 Jul 2012. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Moodle 2.3.x before 2.3.1 uses only a client-side check for whether references are permitted in a file upload, which allows remote authenticated users to bypass intended alias (aka shortcut) restrictions via a client that omits this check.

Weakness: CWE-264

Which versions are affected by CVE-2012-3387?

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

PackageAffectedFixed in
moodle/moodle PackagistFrom 2.32.3.1
moodle/moodle PackagistFrom 2.32.3.1

Products include Moodle Moodle.

How do I fix CVE-2012-3387?

Upgrade moodle/moodle to 2.3.1 or later.

Is CVE-2012-3387 being exploited?

There is no known exploitation of CVE-2012-3387 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as GHSA-w66h-c2vj-cm7f.

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