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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-1991) taskcontroller allows stealing permissions on any local file
Date Wed, 05 Jan 2011 03:02:49 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-1991?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated MAPREDUCE-1991:
-----------------------------------

    Status: Open  (was: Patch Available)

After running the tests, I think there may be an error in this patch - we use "--" to signal
"end of flag options" but that's no longer handled since there no longer are any flag options.

> taskcontroller allows stealing permissions on any local file
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-1991
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1991
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: task-controller
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>            Priority: Blocker
>         Attachments: mapreduce-1991-v2.txt, mapreduce-1991.txt
>
>
> The linux task-controller setuid binary allows a malicious user to chmod any file on
the system to 644 (and as a side effect appends some junk to the end)

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