DarkFig has discovered a vulnerability in JBC Explorer, which can be exploited by malicious people to bypass certain security restrictions and compromise a vulnerable system.

The .dirsys/modules/auth.php script does not restrict access to logged in users and can be exploited to delete the auth.inc.php file and create a new auth.inc.php file. This can be further exploited to log in as administrator, edit the config.inc.php file, and execute arbitrary PHP code.

Successful exploitation requires that the web server has write access to the .dirsys/modules/auth/ directory and the .dirsys/modules/auth/auth.inc.php file.

The vulnerability is confirmed in version 7.05. Other versions may also be affected.

Solution
Restrict access to JBC Explorer (e.g. with ".htaccess").
Further details available in Customer Area

Provided and/or discovered by
DarkFig

Changelog
Further details available in Customer Area

Original Advisory
http://mgsdl.free.fr/?1:33

Deep Links
Links available in Customer Area