Secunia Security Advisory - A vulnerability has been discovered in Dokeos, which can be exploited by malicious users to compromise a vulnerable system.
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TITLE:
Dokeos "My productions" Multiple Extensions File Upload Vulnerability
SECUNIA ADVISORY ID:
SA28154
VERIFY ADVISORY:
http://secunia.com/advisories/28154/
CRITICAL:
Moderately critical
IMPACT:
System access
WHERE:
>From remote
SOFTWARE:
Dokeos 1.x
http://secunia.com/product/4508/
DESCRIPTION:
A vulnerability has been discovered in Dokeos, which can be exploited
by malicious users to compromise a vulnerable system.
The vulnerability is caused due to an error in the handling of file
uploads to "My productions" under "My profile", if a filename has
multiple file extensions (e.g. "file.php.1"). This can be exploited
to upload and execute arbitrary PHP code.
Successful exploitation requires valid user credentials and an
certain server configuration (e.g. an Apache server with the
"mod_mime" module installed).
The vulnerability is confirmed in version 1.8.4. Other versions may
also be affected.
SOLUTION:
Grant only trusted users access to the application.
Restrict access to the "main/upload/users/" directory (e.g. with
".htaccess"). This will however break the download functionality.
PROVIDED AND/OR DISCOVERED BY:
RoMaNcYxHaCkEr and an anonymous person
ORIGINAL ADVISORY:
http://milw0rm.com/exploits/4753
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