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From "Sivaguru Sankaridurg (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14820) Wasb mkdirs security checks inconsistent with HDFS
Date Mon, 04 Sep 2017 12:11:01 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14820?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sivaguru Sankaridurg updated HADOOP-14820:
------------------------------------------
    Status: Patch Available  (was: Open)

Submitting branch-2 patch

> Wasb mkdirs security checks inconsistent with HDFS
> --------------------------------------------------
>
>                 Key: HADOOP-14820
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14820
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/azure
>    Affects Versions: 2.8.1
>            Reporter: Sivaguru Sankaridurg
>            Assignee: Sivaguru Sankaridurg
>              Labels: azure, fs, secure, wasb
>         Attachments: HADOOP-14820.001.patch, HADOOP-14820.002.patch, HADOOP-14820.003.patch,
HADOOP-14820.004.patch, HADOOP-14820.005.patch, HADOOP-14820-006.patch, HADOOP-14820-007.patch,
HADOOP-14820-branch-2-001.patch.txt
>
>
> No authorization checks should be made when a user tries to create (mkdirs -p) an existing
folder hierarchy.
> For example, if we start with _/home/hdiuser/prefix_ pre-created, and do the following
operations, the results should be as shown below.
> {noformat}
> hdiuser@hn0-0d2f67:~$ sudo chown root:root prefix
> hdiuser@hn0-0d2f67:~$ sudo chmod 555 prefix
> hdiuser@hn0-0d2f67:~$ ls -l
> dr-xr-xr-x 3 root    root      4096 Aug 29 08:25 prefix
> hdiuser@hn0-0d2f67:~$ mkdir -p /home
> hdiuser@hn0-0d2f67:~$ mkdir -p /home/hdiuser
> hdiuser@hn0-0d2f67:~$ mkdir -p /home/hdiuser/prefix
> hdiuser@hn0-0d2f67:~$ mkdir -p /home/hdiuser/prefix/1
> mkdir: cannot create directory â/home/hdiuser/prefix/1â: Permission denied
> The first three mkdirs succeed, because the ancestor is already present. The fourth one
fails because of a permission check against the (shorter) ancestor (as compared to the path
being created).
> {noformat}



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