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Ravi Gummadi commented on MAPREDUCE-1991: ----------------------------------------- display_usage( ) function has "Usage: task-controller [-l logfile] user command command-args". Would you please remove [-l logfile] here also ? > 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: 0.21.0, 0.22.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Priority: Blocker > Attachments: 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) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.