taskcontroller allows stealing permissions on any local file
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Key: MAPREDUCE-1991
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1991
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: task-controller
Affects Versions: 0.21.0, 0.22.0
Reporter: Todd Lipcon
Priority: Blocker
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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