CubeCart 5.0.7 Insecure Backup Handling

`1. OVERVIEW  
  
CubeCart 5.0.7 and lower versions are vulnerable to Insecure Backup  
File Handling which leads to the disclosure of the application  
configuration file.  
  
  
2. BACKGROUND  
  
CubeCart is an "out of the box" ecommerce shopping cart software  
solution which has been written to run on servers that have PHP &  
MySQL support. With CubeCart you can quickly setup a powerful online  
store which can be used to sell digital or tangible products to new  
and existing customers all over the world.  
  
  
3. VULNERABILITY DESCRIPTION  
  
CubeCart 5.0.7 and lower versions contain a flaw that insecurely backs  
up the configuration file, "global.inc.php", upon new installation or  
upgrade process. The name of backup configuration file is set to the  
year, month, day, hour, minute that the process is performed. The  
non-randomized nature of this backup scheme allows an attacker to  
retrieve the file through brute-force method.  
  
  
4. VERSIONS AFFECTED  
  
5.0.7 and lower versions  
  
  
5. Affected Files  
  
/setup/setup.install.php  
/setup/setup.upgrade.php  
  
///////////CODE //////////////  
##Backup existing config file, if it exists  
if (file_exists($global_file)) {  
rename($global_file, $global_file.'-'.date('Ymdgi'));  
}  
/////////////////////////  
  
e.g.  
http://127.0.0.1/cube507/includes/global.inc.php-2012021245719 \  
  
  
6. SOLUTION  
  
Upgrade to the latest CubeCart version - 5.x.  
  
  
7. VENDOR  
  
CubeCart Development Team  
http://cubecart.com/  
  
  
8. CREDIT  
  
Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar.  
  
  
9. DISCLOSURE TIME-LINE  
  
2012-03-24: Vulnerability reported  
2012-12-28: Vulnerability disclosed  
  
  
10. REFERENCES  
  
Original Advisory URL:  
http://yehg.net/lab/pr0js/advisories/%5Bcubecart_5.0.7%5D_insecure-backup  
CubeCart Home Page: http://cubecart.com/  
  
#yehg [2012-12-28]  
  
---------------------------------  
Best regards,  
YGN Ethical Hacker Group  
Yangon, Myanmar  
http://yehg.net  
Our Lab | http://yehg.net/lab  
Our Directory | http://yehg.net/hwd  
`