A Resource Exhaustion issue was discovered in Rockwell Automation ControlLogix 5580 controllers V28.011, V28.012, and V28.013; ControlLogix 5580 controllers V29.011; CompactLogix 5380 controllers V28.011; and CompactLogix 5380 controllers V29.011. This vulnerability may allow an attacker to cause a denial of service condition by sending a series of specific CIP-based commands to the controller.
The product does not properly control the allocation and maintenance of a limited resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Compactlogix_5380_firmware | Rockwellautomation | v28.011 (including) | v28.011 (including) |
| Compactlogix_5380_firmware | Rockwellautomation | v29.011 (including) | v29.011 (including) |
Mitigation of resource exhaustion attacks requires that the target system either:
The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.