kandalf upper File Upload Security Issue

SECUNIA ADVISORY ID: SA37946

VERIFY ADVISORY: http://secunia.com/advisories/37946/

DESCRIPTION: A security issue has been discovered in kandalf upper, which can be exploited by malicious people to compromise a vulnerable system.

The security issue is caused due to the upper.php script improperly validating uploaded files. This can be exploited to execute arbitrary PHP code by uploading a malicious PHP script with multiple extensions.

Successful exploitation of this vulnerability requires that Apache is not configured to handle the mime-type for media files with an e.g. “gif”, “jpg”, or “jpeg” extension.

The security issue is confirmed in version 0.1. Other versions may also be affected.

SOLUTION: Restrict access to the upper.php script (via e.g. via .htaccess).

PROVIDED AND/OR DISCOVERED BY: indoushka

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