A technique has been identified that adapts a known port-stealing method to Wi-Fi environments that use multiple BSSIDs. By leveraging the relationship between BSSIDs and their associated virtual ports, an attacker could potentially bypass inter-BSSID isolation controls. Successful exploitation may enable an attacker to redirect and intercept the victims network traffic, potentially resulting in eavesdropping, session hijacking, or denial of service.
Weakness
The product does not properly control the allocation and maintenance of a limited resource.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Arubaos | Arubanetworks | 6.5.4.0 (including) | 8.10.0.21 (including) |
| Arubaos | Arubanetworks | 8.11.0.0 (including) | 8.12.0.6 (including) |
| Arubaos | Arubanetworks | 8.13.0.0 (including) | 8.13.1.1 (including) |
| Arubaos | Arubanetworks | 10.3.0.0 (including) | 10.4.1.10 (including) |
| Arubaos | Arubanetworks | 10.5.0.0 (including) | 10.7.2.2 (including) |
| Arubaos | Arubanetworks | 10.8.0.0 (including) | 10.8.0.0 (including) |
Potential Mitigations
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.
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/147.html
- https://cwe.mitre.org/data/definitions/227.html
- https://cwe.mitre.org/data/definitions/492.html
References
- https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05026en_us\u0026docLocale=en_US