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https://issues.apache.org/jira/browse/YARN-11923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18053877#comment-18053877
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ASF GitHub Bot commented on YARN-11923:
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susheelgupta7 commented on PR #8206:
URL: https://github.com/apache/hadoop/pull/8206#issuecomment-3789616530
> Thanks @susheelgupta7 for this security upgrade.
>
> I think that if we hardcode these two HTTP methods, it will also affect
non-Spark applications and could potentially break some custom YARN
applications. For example, what if there is a specific YARN AM that has
business logic tied to these trace calls?
>
> What do you think about creating a new configuration list of allowed HTTP
methods instead of hardcoding these values? If the list is empty, everything
would behave as it does currently; otherwise, the methods would be filtered
against the list.
Thanks @K0K0V0K for the review. The custom YARN applications may be
impacted. I'll update the implementation to use a configurable approach.
> YARN web proxy AmIpFilter allows TRACE, bypassing sparkUI TRACE block
> ---------------------------------------------------------------------
>
> Key: YARN-11923
> URL: https://issues.apache.org/jira/browse/YARN-11923
> Project: Hadoop YARN
> Issue Type: Bug
> Components: yarn
> Reporter: Susheel Gupta
> Assignee: Susheel Gupta
> Priority: Major
> Labels: pull-request-available
>
> In yarn mode, sparkUI responds to http TRACE with 302 redirect. The redirect
> happens in AmIpFilter, so the TRACE request is getting processed before spark
> jetty handler can reject it. This causes security scanners to report TRACE
> enabled.
> In local mode there is no yarn proxy filter, so requests go directly to spark
> Jetty servlet. SPARK‑5983 adds TRACE filter correctly returning 405.
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