Bug #53514 [Opn]: open_basedir broken in PHP 5.2.15 and PHP 5.3.4, denies access to all files

From: Date: Fri, 10 Dec 2010 08:55:46 +0000
Subject: Bug #53514 [Opn]: open_basedir broken in PHP 5.2.15 and PHP 5.3.4, denies access to all files
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-156860@lists.php.net to get a copy of this message
Edit report at http://bugs.php.net/bug.php?id=53514&edit=1

 ID:                 53514
 Updated by:         tomsommer@php.net
 Reported by:        tomsommer@php.net
 Summary:            open_basedir broken in PHP 5.2.15 and PHP 5.3.4,
                     denies access to all files
 Status:             Open
 Type:               Bug
 Package:            Safe Mode/open_basedir
 Operating System:   Linux
 PHP Version:        5.2.15
 Block user comment: N
 Private report:     N

 New Comment:

Only tested in PHP 5.2.15, downloaded an hour ago

# /usr/local/src/php-5.2.15/sapi/cli/php -d open_basedir=/root/ -r "echo
fopen('/root/a.php', 'r');"

Warning: fopen(): open_basedir restriction in effect. File(/root/a.php)
is not within the allowed path(s): (/root/) in Command line code on line
1

Warning: fopen(/root/a.php): failed to open stream: Operation not
permitted in Command line code on line 1


Previous Comments:
------------------------------------------------------------------------
[2010-12-10 09:50:20] cataphract@php.net

I can't reproduce this with:

/home/glopes/php/php5.3/bin/php -d open_basedir=/home/glopes/ -r "echo
fopen('a.php', 'r');"

Are you sure you're not using RC1?

------------------------------------------------------------------------
[2010-12-10 09:33:20] cataphract@php.net

See also
http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg847440.html

------------------------------------------------------------------------
[2010-12-10 09:26:02] tomsommer@php.net

The commit that presumably broke it:
http://svn.php.net/viewvc/php/php-src/trunk/main/fopen_wrappers.c?r1=303824&r2=303823&pathrev=303824

------------------------------------------------------------------------
[2010-12-10 09:24:39] tomsommer@php.net

Description:
------------
The fix for CVE-2010-3436 broke open_basedir

Might also affect PHP 5.3.4

consider

    php_admin_value open_basedir
"/var/www/www.example.dk/:/var/www/tmp/:/usr/local/bin/safe/"

The DocumentRoot of the site is "/var/www/www.example.dk/www/"

Opening /var/www/www.example.dk/www/index.php
(http://example.dk/index.php) triggers:

Warning: Unknown: open_basedir restriction in effect.
File(/var/www/www.example.dk/www/index.php) is not within the allowed
path(s): (/var/www/www.example.dk/:/var/www/tmp/:/usr/local/bin/safe/)
in Unknown on line 0

Warning: Unknown: failed to open stream: Operation not permitted in
Unknown on line 0

Warning: Unknown: open_basedir restriction in effect.
File(/var/www/www.example.dk/www/index.php) is not within the allowed
path(s): (/var/www/www.example.dk/:/var/www/tmp/:/usr/local/bin/safe/)
in Unknown on line 0

Warning: Unknown: failed to open stream: Operation not permitted in
Unknown on line 0

Fatal error: Unknown: Failed opening required
'/var/www/www.example.dk/www/index.php'
(include_path='.:/usr/local/lib/php') in Unknown on line 0




------------------------------------------------------------------------



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