note 88873 added to function.chown
| From: | Dan at osu1 dot php dot net | Date: | Wed, 11 Feb 2009 19:47:25 +0000 |
| Subject: | note 88873 added to function.chown | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-150510@lists.php.net to get a copy of this message | ||
To Mikevac at yahoo dot com :
This is, in fact, so exceedingly dangerous as to render your system compromised. By allowing a
non-root user to change ownership of a file, a simple operation of:
1. Compile executable that spawns a Bash shell.
2. Set suid bits on said executable.
3. Change owner of said executable to root.
4. Run said executable.
is sufficient to 0wn the system in question.
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Server IP: 64.71.164.2
Probable Submitter: 209.51.167.2
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Manual Page -- http://www.php.net/manual/en/function.chown.php
Edit -- https://master.php.net/note/edit/88873
Del: integrated -- https://master.php.net/note/delete/88873/integrated
Del: useless -- https://master.php.net/note/delete/88873/useless
Del: bad code -- https://master.php.net/note/delete/88873/bad+code
Del: spam -- https://master.php.net/note/delete/88873/spam
Del: non-english -- https://master.php.net/note/delete/88873/non-english
Del: in docs -- https://master.php.net/note/delete/88873/in+docs
Del: other reasons-- https://master.php.net/note/delete/88873
Reject -- https://master.php.net/note/reject/88873
Search -- https://master.php.net/manage/user-notes.php