[jira] [Created] (CASSANDRA-9889) Disable scripted UDFs by default

["Robert Stupp (JIRA)" <ji...@apache.org>]

Robert Stupp created CASSANDRA-9889:
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             Summary: Disable scripted UDFs by default
                 Key: CASSANDRA-9889
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9889
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Robert Stupp
            Assignee: Robert Stupp
            Priority: Minor
             Fix For: 3.0.x


(Follow-up to CASSANDRA-9402)

TL;DR this ticket is about to add an other config option to enable scripted UDFs.

Securing Java-UDFs is much easier than scripted UDFs.

The secure execution of scripted UDFs heavily relies on "how secure" a particular script provider implementation is. Nashorn is probably pretty good at this - but (as discussed offline with [~iamaleksey]) we are not certain. This becomes worse with other JSR-223 providers (which need to be installed by the user anyway).

E.g.:

{noformat}
# Enables use of scripted UDFs.
# Java UDFs are always enabled, if enable_user_defined_functions is true.
# Enable this option to be able to use UDFs with "language javascript" or any custom JSR-223 provider.
enable_scripted_user_defined_functions: false
{noformat}

TBH: I would feel more comfortable to have this one. But we should review this along with enable_user_defined_functions for 4.0.



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