In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, WebAccelerator software version 12.0.0 - 12.1.2, 11.6.0 - 11.6.1, 11.4.0 - 11.5.4, 11.2.1, when ConfigSync is configured, attackers on adjacent networks may be able to bypass the TLS protections usually used to encrypted and authenticate connections to mcpd. This vulnerability may allow remote attackers to cause a denial-of-service (DoS) attack via resource exhaustion.
The product does not properly control the allocation and maintenance of a limited resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Big-ip_local_traffic_manager | F5 | 11.5.0 (including) | 11.5.4 (including) |
| Big-ip_local_traffic_manager | F5 | 11.2.1 (including) | 11.2.1 (including) |
| Big-ip_local_traffic_manager | F5 | 11.6.0 (including) | 11.6.0 (including) |
| Big-ip_local_traffic_manager | F5 | 11.6.1 (including) | 11.6.1 (including) |
| Big-ip_local_traffic_manager | F5 | 12.0.0 (including) | 12.0.0 (including) |
| Big-ip_local_traffic_manager | F5 | 12.1.0 (including) | 12.1.0 (including) |
| Big-ip_local_traffic_manager | F5 | 12.1.1 (including) | 12.1.1 (including) |
| Big-ip_local_traffic_manager | F5 | 12.1.2 (including) | 12.1.2 (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.