note 35863 added to features.safe-mode
| From: | Andreas dot Ley at rz dot uni-karlsruhe dot de | Date: | Wed, 17 Sep 2003 12:28:42 +0000 |
| Subject: | note 35863 added to features.safe-mode | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-56635@lists.php.net to get a copy of this message | ||
gtg782a: forcing PHP-created files to be owned by the same owner/group as the script that created
them would require root priviledges, which apache normally doesn't have, or create a race
condition if chown() is used (which even may not work in every environment, e.g. if quotas are in
place).
Using open_basedir avoids using these files to escalate priviledges, but still you'd be able to
write files with apache's uid, which is another bad thing if quotas are in place.
A possible solution to this problem may be the patch I wrote (available at http://andy.rz.uni-karlsruhe.de/~andy/source/Patches/php-4.3.3/,
against PHP 4.3.3 but should apply to other versions, too) which enforces the uid of the process
execution the PHP-script and the uid of the directory where a new file should be created to be the
same.
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Manual Page -- http://www.php.net/manual/en/features.safe-mode.php
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