Remus Rusanu resolved YARN-2552.
    Resolution: Implemented

Fix is included in YARN-2198.delta.7.patch

> Windows Secure Container Executor: the privileged file operations of 
> hadoopwinutilsvc should be constrained to localdirs only
> -----------------------------------------------------------------------------------------------------------------------------
>                 Key: YARN-2552
>                 URL: https://issues.apache.org/jira/browse/YARN-2552
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager
>            Reporter: Remus Rusanu
>            Assignee: Remus Rusanu
>              Labels: security, windows, wsce
>         Attachments: YARN-2552.1.patch
> YARN-2458 added file manipulation operations executed in an elevated context 
> by hadoopwinutilsvc. W/o any constraint, the NM (or a hijacker that takes 
> over the NM) can manipulate arbitrary OS files under highest possible 
> privileges, an easy elevation attack vector. The service should only allow 
> operations on files/directories that are under the configured NM localdirs. 
> It should read this value from wsce-site.xml, as the yarn-site.xml cannot be 
> trusted, being writable by Hadoop admins (YARN-2551 ensures wsce-site.xml is 
> only writable by system Administrators, not Hadoop admins).

This message was sent by Atlassian JIRA

Reply via email to