CVE-2013-5674 Deserialization in n/a

High 7.5 Published Updated

Remote attackers can execute arbitrary code or escalate privileges via PHP object injection in Moodle's external badge handling.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2013-5674?

CVE-2013-5674 is a high-severity unsafe deserialization vulnerability in Moodle Moodle, published on 16 Sep 2013. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

badges/external.php in Moodle 2.5.x before 2.5.2 does not properly handle an object obtained by unserializing a description of an external badge, which allows remote attackers to conduct PHP object injection attacks via unspecified vectors, as demonstrated by overwriting the value of the userid parameter.

Weakness: CWE-94

Which versions are affected by CVE-2013-5674?

It affects 1 product.

Products include Moodle Moodle.

How do I fix CVE-2013-5674?

No fix has been published for CVE-2013-5674 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2013-5674 being exploited?

There is no known exploitation of CVE-2013-5674 in the wild and no public exploit code.

All Moodle Moodle vulnerabilities

Sources

Also known as GHSA-2hw8-qj3h-c7pq.

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