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user able to delete directory owned by root

 
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# 1  
Old 04-13-2011
user able to delete directory owned by root
I've tried to figure this out.
I'm only about 6 mos into my AIX admin duties, but I've got a "security" problem I can't figure out.

I've created a sub directory as follows:

Code:
drwx------ 2 root system 256 Apr 13 16:02 mike

I've logged in another session with the following user:

$ id
uid=991(yoman) gid=1(staff)

$ cd mike
ksh: mike: Permission denied.
$ rmdir mike
$ ls -l mi*
ls: 0653-341 The file mi* does not exist.
$ id
uid=991(yoman) gid=1(staff)

How is it possible for yoman to delete the directory mike ???Smilie


---------- Post updated at 04:13 PM ---------- Previous update was at 04:07 PM ----------

Is it because the directory "above" (i.e. parent) has drwxrwxrwx ?
Last edited by Yogesh Sawant; 04-14-2011 at 08:37 AM.. Reason: added code tags
# 2  
Old 04-13-2011
You should read this link carefully:
https://www.unix.com/tips-tutorials/1...rmissions.html
# 3  
Old 04-13-2011
Yes, it is because of the 777 permissions of the parent directory.
If you were to set the "sticky bit" on the parent directory file this will stop a user deleting something they do not own. See "man chmod".
This User Gave Thanks to methyl For This Post:
mpheine
 
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