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CVE-2021-41766GHSA-JH5G-9M4V-9VV9

Insecure Java Deserialization in Apache Karaf

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.3.6
None on Exploit-DB, Metasploit or GitHub

Summary

Apache Karaf allows monitoring of applications and the Java runtime by using the Java Management Extensions (JMX). JMX is a Java RMI based technology that relies on Java serialized objects for client server communication. Whereas the default JMX implementation is hardened against unauthenticated deserialization attacks, the implementation used by Apache Karaf is not protected against this kind of attack. The impact of Java deserialization vulnerabilities strongly depends on the classes that are available within the targets class path. Generally speaking, deserialization of untrusted data does always represent a high security risk and should be prevented. The risk is low as, by default, Karaf uses a limited set of classes in the JMX server class path. It depends of system scoped classes (e.g. jar in the lib folder).

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Apache Software Foundation Apache Karaf

    fixed in 4.3.6

  • org.apache.karaf.management:org.apache.karaf.management.serverMaven

    fixed in 4.3.6

References 1

karaf.apache.org