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https://issues.apache.org/jira/browse/DRILL-8549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18098092#comment-18098092
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ASF GitHub Bot commented on DRILL-8549:
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pjfanning opened a new pull request, #3057:
URL: https://github.com/apache/drill/pull/3057
# [DRILL-8549](https://issues.apache.org/jira/browse/DRILL-8549): Add
Jackson validation of polymorphic types.
## Description
Work in Progress. I need to add some tests. I just want to start by seeing
if the validation causes unexpected test failures.
## Documentation
(Please describe user-visible changes similar to what should appear in the
Drill documentation.)
## Testing
(Please describe how this PR has been tested.)
> Insecure Jackson deserialization
> --------------------------------
>
> Key: DRILL-8549
> URL: https://issues.apache.org/jira/browse/DRILL-8549
> Project: Apache Drill
> Issue Type: Task
> Reporter: PJ Fanning
> Priority: Major
>
> https://github.com/apache/drill/blob/09ff1949aac7282dafec0f10ae16669b4f7d8c08/exec/java-exec/src/main/java/org/apache/drill/exec/planner/physical/PartitionFunction.java#L27
> `@JsonTypeInfo(use = JsonTypeInfo.Id.CLASS)` – when you deserialize the
> `@class` value that appears in the JSON can be any class name and Jackson
> will load that class and try to create an instance.
> You should add a polymorphic type validator to your ObjectMapper that
> restricts which classes can be loaded at deserialization time.
> [https://fasterxml.github.io/jackson-databind/javadoc/2.10/com/fasterxml/jackson/databind/jsontype/BasicPolymorphicTypeValidator.html]
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