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Posted to dev@lucene.apache.org by "Ishan Chattopadhyaya (JIRA)" <ji...@apache.org> on 2015/09/27 15:35:04 UTC
[jira] [Updated] (SOLR-8099) Remove sleep() function /
ValueSourceParser
[ https://issues.apache.org/jira/browse/SOLR-8099?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ishan Chattopadhyaya updated SOLR-8099:
---------------------------------------
Summary: Remove sleep() function / ValueSourceParser (was: Remove sleep() function / valuesourceparse)
> Remove sleep() function / ValueSourceParser
> -------------------------------------------
>
> Key: SOLR-8099
> URL: https://issues.apache.org/jira/browse/SOLR-8099
> Project: Solr
> Issue Type: Improvement
> Reporter: Ishan Chattopadhyaya
> Labels: security
> Fix For: 5.4
>
> Attachments: SOLR-8099.patch
>
>
> As per Doug Turnbull, the sleep() represents a security risk.
> {noformat}
> I noticed a while back that "sleep" is a function query. Which I
> believe means I can make the current query thread sleep for as long as I
> like.
> I'm guessing an attacker could use this to starve Solr of threads, running
> a denial of service attack by running multiple queries with sleeps in them.
> Is this a concern? I realize there may be test purposes to sleep a function
> query, but I'm trying to think if there's really practical purpose to
> having sleep here.
> Best,
> -Doug
> {noformat}
> This issue is to remove it, since it is neither documented publicly, nor used internally very much, apart from one test suite.
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