CVE-2020-4464 Deserialization in WebSphere Application Server

What is CVE-2020-4464?

CVE-2020-4464 is a high-severity unsafe deserialization vulnerability in Ibm Websphere Application Server, published on 17 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 traditional could allow a remote attacker to execute arbitrary code on a system with a specially-crafted sequence of serialized objects over the SOAP connector. IBM X-Force ID: 181489.

Weakness: CWE-502

Which versions are affected by CVE-2020-4464?

It affects 1 product.

Products include Ibm Websphere Application Server.

How do I fix CVE-2020-4464?

No fix has been published for CVE-2020-4464 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-2020-4464 being exploited?

There is no known exploitation of CVE-2020-4464 in the wild and no public exploit code.

Public exploit code: 2 proofs of concept on GitHub.

Other vulnerabilities in Ibm Websphere Application Server

• CVE-2015-1920 Code injection in n/a Critical 10.0
• CVE-2013-0462 Other in n/a Critical 10.0
• CVE-2011-1377 Security feature bypass in n/a Critical 10.0
• CVE-2010-3186 Other in n/a Critical 10.0
• CVE-2009-1899 Information disclosure in n/a Critical 10.0

All Ibm Websphere Application Server vulnerabilities

Sources

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

Also known as GHSA-57jh-54r4-h5x5.