Description
An attacker can use SnakeYAML to deserialize java.net.URLClassLoader and make it load a JAR from a specified URL, and then deserialize javax.script.ScriptEngineManager to load code using that ClassLoader. This unbounded deserialization can likely lead to remote code execution. The code can be run in Helix REST start and Workflow creation. Affect all the versions lower and include 1.2.0. Affected products: helix-core, helix-rest Mitigation: Short term, stop using any YAML based configuration and workflow creation. Long term, all Helix version bumping up to 1.3.0
Remediation
References
https://lists.apache.org/thread/zyqxhv0lc2z9w3tgr8ttrdy2zfh5jvc4
Related Vulnerabilities
CVE-2019-10355 Vulnerability in maven package org.jenkins-ci.plugins:script-security
CVE-2017-2601 Vulnerability in maven package org.jenkins-ci.main:jenkins-core
CVE-2017-12619 Vulnerability in maven package org.apache.zeppelin:zeppelin
CVE-2017-7663 Vulnerability in maven package org.apache.openmeetings:openmeetings-core