Joe Testa hellbent 01 webserver allows attackers to read files that are specified in the hellbent.prefs file by creating a file with a similar name in the web root, as demonstrated using (1) index.webroot and (2) index.ipallow.

Joe Testa hellbent 01 allows remote attackers to determine the full path of the web root directory via a GET request with a relative path that includes the root's parent, which generates a 403 error message if the parent is incorrect, but a normal response if the parent is correct.