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Posted to mapreduce-issues@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2010/08/05 01:40:17 UTC
[jira] Assigned: (MAPREDUCE-1994) Linux task-controller determines
its own path insecurely
[ https://issues.apache.org/jira/browse/MAPREDUCE-1994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon reassigned MAPREDUCE-1994:
--------------------------------------
Assignee: Todd Lipcon
> Linux task-controller determines its own path insecurely
> --------------------------------------------------------
>
> Key: MAPREDUCE-1994
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1994
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: security, task-controller
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
>
> The task-controller uses argv[0] to determine its own path, and then calls stat() on that. Instead it should stat("/proc/self/exe") directly. This is important since argv[0] can be spoofed to point to another program and thus either fool the autodetection of HADOOP_HOME or evade various permissions checks.
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