The CGM CLININET application uses direct, sequential object identifiers "MessageID" without proper authorization checks. By modifying the parameter in the GET request, an attacker can access messages and attachments belonging to other users.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0