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Bug #37556 file_exists does not properly resolve symlinks before applying open_basedir
Submitted: 2006-05-23 02:48 UTC Modified: 2006-06-14 17:48 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:1 (100.0%)
From: phpdotnet at ericmarques dot com Assigned:
Status: Not a bug Package: Safe Mode/open_basedir
PHP Version: 5.1.4 OS: FreeBSD 5.4
Private report: No CVE-ID: None
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 [2006-05-23 02:48 UTC] phpdotnet at ericmarques dot com 
Description:
------------
file_exists does not properly resolve symlinks before applying open_basedir on "include" scripts.

in my situation
/home is a symlink to /data/home

open_basedir is set to /home/ericmarq/
apache documentroot is set to /home/ericmarq/public_html

Server running cPanel, apache 1.3

This did not happen in php 4.4.2, only happened after upgrade to 5.1.2

Reproduce code:
---------------
-- test1.php --
<?php
include("test2.php");
?>

-- test2.php --
<?php
if (!file_exists("/home/ericmarq/public_html/SUBDIR/does.not.exist.html")){
print "no";
}
?>

Expected result:
----------------
no

Actual result:
--------------
Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. File(/home/ericmarq/public_html/SUBDIR/does.not.exist.html) is not within the allowed path(s): (/home/ericmarq/) in /data/home/ericmarq/public_html/test2.php on line 2
no

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 [2006-05-23 03:01 UTC] phpdotnet at ericmarques dot com 
Same problem with other functions too like file_get_contents.

Only happens where the file being performed on is in a sub folder of the script being run.
 [2006-06-14 17:48 UTC] sniper@php.net 
See bug #30188
 
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