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Posted to mapreduce-issues@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2011/01/11 01:13:45 UTC

[jira] Commented: (MAPREDUCE-2252) XSS injection in JobHistoryParser

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2252?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12979863#action_12979863 ] 

Todd Lipcon commented on MAPREDUCE-2252:
----------------------------------------

More generally we should probably register a jetty ErrorHandler which escapes the output of exception traces. org.mortbay.jetty.handler.ErrorHandler is the default and has this lack of escaping that causes the bug.

> XSS injection in JobHistoryParser
> ---------------------------------
>
>                 Key: MAPREDUCE-2252
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2252
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Priority: Critical
>             Fix For: 0.22.0
>
>
> A malicious user can copy a job history file to another location to which both the user and the JT have access to, and then modify the "taskid" field of a "TaskStarted" event in the JSON to include a script tag. This will be printed unescaped in the 500 error that is produced.

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