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Bug #9563 realpath() returns empty string when working directory is under a symbolic link
Submitted: 2001-03-05 11:11 UTC Modified: 2001-06-03 04:14 UTC
From: agreenbu at intelenet dot state dot in dot us Assigned:
Status: Closed Package: Filesystem function related
PHP Version: 4.0.4pl1 OS: Solaris 2.7
Private report: No CVE-ID: None
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From: agreenbu at intelenet dot state dot in dot us
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 [2001-03-05 11:11 UTC] agreenbu at intelenet dot state dot in dot us 
/opt/apache/htdocs is the Document Root for Apache.
/opt/apache/htdocs/directory is a symbolic link that points to /home/morespace/directory. Document /home/morespace/directory/username/index.php contains the code:

$RealPath = realpath(".");

if (!stristr($RealPath, $UserName)){
        echo "This directory does not belong to you.  Attempt has been logged.";
        session_destroy();
        exit;
}

This code always fails because realpath(".") returns an empty string.

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 [2001-03-05 12:29 UTC] agreenbu at intelenet dot state dot in dot us 
Looks like it rejects symbolic links under Solaris 2.7 altogether...
 [2001-06-03 04:14 UTC] sniper@php.net 
This should be fixed with PHP 4.0.6, please try the 
latest release candidate:

http://www.php.net/~andi/php-4.0.6RC2.tar.gz

-Jani
 
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