Description
In Apache Spark versions prior to 3.4.0, applications using spark-submit can specify a 'proxy-user' to run as, limiting privileges. The application can execute code with the privileges of the submitting user, however, by providing malicious configuration-related classes on the classpath. This affects architectures relying on proxy-user, for example those using Apache Livy to manage submitted applications. Update to Apache Spark 3.4.0 or later, and ensure that spark.submit.proxyUser.allowCustomClasspathInClusterMode is set to its default of "false", and is not overridden by submitted applications.
Remediation
References
https://lists.apache.org/thread/yllfl25xh5tbotjmg93zrq4bzwhqc0gv
Related Vulnerabilities
CVE-2020-2199 Vulnerability in maven package org.jenkins-ci.plugins:subversion
CVE-2021-41616 Vulnerability in maven package org.apache.ddlutils:ddlutils
CVE-2023-32981 Vulnerability in maven package org.jenkins-ci.plugins:pipeline-utility-steps
CVE-2020-13936 Vulnerability in maven package org.apache.velocity:velocity-engine-core
CVE-2020-17518 Vulnerability in maven package org.apache.flink:flink-runtime_2.11