CVE-2013-4221 Restlet is vulnerable to Arbitrary Java Code Execution via crafted XML

What is CVE-2013-4221?

CVE-2013-4221 is a high-severity unsafe deserialization vulnerability in n/a, published on 10 Oct 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The default configuration of the ObjectRepresentation class in Restlet before 2.1.4 deserializes objects from untrusted sources using the Java XMLDecoder, which allows remote attackers to execute arbitrary Java code via crafted XML.

Weakness: CWE-91, CWE-16

Which versions are affected by CVE-2013-4221?

2 open source packages ship an affected version, including org.restlet.jse:org.restlet. It affects 1 product.

Products include Restlet Restlet.

How do I fix CVE-2013-4221?

Upgrade org.restlet.jse:org.restlet to 2.1.4 or later.

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

Is CVE-2013-4221 being exploited?

There is no known exploitation of CVE-2013-4221 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2017-14868 Restlet Framework Ja-rs extension is vulnerable to XXE when using SimpleXMLProvider High 7.5
• CVE-2017-14949 Restlet Framework allows remote attackers to access arbitrary files via a crafted REST API HTTP request High 7.5
• CVE-2013-4271 Restlet Arbitrary Java Code Execution via a serialized object High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-92j2-5r7p-6hjw, UBUNTU-CVE-2013-4221.