====================================================================== Secunia Research 19/04/2010 - e107 Avatar/Photograph Image File Upload Vulnerability - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerability.........................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10 ====================================================================== 1) Affected Software * e107 version 0.7.19 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Moderately critical Impact: System access Where: From remote ====================================================================== 3) Vendor's Description of Software "e107 is a content management system written in PHP and using the popular open source MySQL database system for content storage. It's completely free, totally customisable and in constant development.". Product Link: http://e107.org/ ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in e107, which can be exploited by malicious users to compromise a vulnerable system. An error exists in the handling of file uploads for avatar and photograph images. This can be exploited to upload and execute arbitrary PHP code via a specially crafted image file with a ".php.filetypesphp" extension. Successful exploitation requires that "Public Uploads" are disabled (default), but uploads for avatar or photograph images for users are enabled, and a certain server configuration (e.g. an Apache server with the "mod_mime" module installed). ====================================================================== 5) Solution Update to version 0.7.20. ====================================================================== 6) Time Table 18/03/2010 - Vendor notified. 18/03/2010 - Vendor response. 19/04/2010 - Public disclosure. ====================================================================== 7) Credits Discovered by Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2010-0996 for the vulnerability. ====================================================================== 9) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://secunia.com/advisories/business_solutions/ Secunia also provides a publicly accessible and comprehensive advisory database as a service to the security community and private individuals, who are interested in or concerned about IT-security. http://secunia.com/advisories/ Secunia believes that it is important to support the community and to do active vulnerability research in order to aid improving the security and reliability of software in general: http://secunia.com/secunia_research/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/corporate/jobs/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/advisories/mailing_lists/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2010-44/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================