Incorrect Access Control in the Preview Function of Gleamtech FileVista 9.2.0.0 allows remote attackers to gain unauthorized access via exploiting a vulnerability in access control mechanisms by removing authentication-related HTTP headers, such as the Cookie header, in the request. This bypasses the authentication process and grants attackers access to sensitive image files without proper login credentials.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
Access control involves the use of several protection mechanisms such as:
When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: