PRP: Apache livy None RCE

[joernNNN]

• Identifier of the vulnerability: None
• Affected software: Apache livy
• Type of vulnerability: RCE
• Requires authentication: No
• Language you would use for writing the plugin: Templated plugins
• Resources: https://livy.apache.org/docs/latest/rest-api.html

Vulnerability is simple to exploit. Please follow the README:
google/security-testbeds#154

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