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From "Robert Joseph Evans (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2858) MRv2 WebApp Security
Date Wed, 12 Oct 2011 22:01:12 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13126197#comment-13126197
] 

Robert Joseph Evans commented on MAPREDUCE-2858:
------------------------------------------------

I believe that the issue is with DNS setup.  I am not a networking expert so please correct
me if I am wrong about this.  But if your grid is running on your network, say mygrid.company.com,
and your company wide login already sets a cookie for company.com, then in theory any web
server running on mygrid.company.com can steal you company wide login cookie, or perhaps some
other cookies that are tied to the company.com domain.  Now depending on how those cookies
are signed/tied to IP address etc. there is the possibility of misusing them for nefarious
purposes.  It may be difficult but possible.
                
> MRv2 WebApp Security
> --------------------
>
>                 Key: MAPREDUCE-2858
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2858
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: applicationmaster, mrv2, security
>    Affects Versions: 0.23.0
>            Reporter: Luke Lu
>            Assignee: Luke Lu
>            Priority: Blocker
>             Fix For: 0.23.0
>
>
> In MRv2, while the system servers (ResourceManager (RM), NodeManager (NM) and NameNode
(NN)) run as "trusted"
> system users, the application masters (AM) run as users who submit the application. While
this offers great flexibility
> to run multiple version of mapreduce frameworks (including their UI) on the same Hadoop
cluster, it has significant
> implication for the security of webapps (Please do not discuss company specific vulnerabilities
here).
> Requirements:
> # Secure authentication for AM (for app/job level ACLs).
> # Webapp security should be optional via site configuration.
> # Support existing pluggable single sign on mechanisms.
> # Should not require per app/user configuration for deployment.
> # Should not require special site-wide DNS configuration for deployment.
> This the top jira for webapp security. A design doc/notes of threat-modeling and counter
measures will be posted on the wiki.

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