CVE-2020-10740 Wildfly Unsafe Deserialization Vulnerability

What is CVE-2020-10740?

CVE-2020-10740 is a medium-severity unsafe deserialization vulnerability in [UNKNOWN] wildfly, published on 22 Jun 2020. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A vulnerability was found in Wildfly in versions before 20.0.0.Final, where a remote deserialization attack is possible in the Enterprise Application Beans(EJB) due to lack of validation/filtering capabilities in wildfly.

Weakness: CWE-502

Which versions are affected by CVE-2020-10740?

3 open source packages ship an affected version, including org.wildfly:wildfly-parent and wildfly. It affects 1 product.

Products include Redhat Wildfly.

How do I fix CVE-2020-10740?

Upgrade org.wildfly:wildfly-parent to 20.0.0.Final or later.

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

Is CVE-2020-10740 being exploited?

There is no known exploitation of CVE-2020-10740 in the wild and no public exploit code.

Other vulnerabilities in [UNKNOWN] wildfly

• CVE-2018-10683 Auth bypass in n/a Critical 9.8
• CVE-2020-27822 Wildfly has a memory leak vulnerability Medium 5.9
• CVE-2020-1719 Privilege Context Switching Error in wildlfy Medium 5.4
• CVE-2020-25640 Wildfly logs plaintext passwords Medium 5.3
• CVE-2018-14627 Security feature bypass in JBoss/WildFly Medium 5.3

Sources

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

Also known as BIT-wildfly-2020-10740, GHSA-vrmw-2xhq-hrmp.