An uncontrolled resource consumption vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated administrators to launch a denial-of-service (DoS) attack via a network.
We have already fixed the vulnerability in the following versions: QTS 5.1.5.2645 build 20240116 and later QuTS hero h5.1.5.2647 build 20240118 and later QuTScloud c5.1.5.2651 and later
Weakness
The product does not properly control the allocation and maintenance of a limited resource.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Qts | Qnap | 5.1.0.2348-build_20230325 (including) | 5.1.0.2348-build_20230325 (including) |
| Qts | Qnap | 5.1.0.2399-build_20230515 (including) | 5.1.0.2399-build_20230515 (including) |
| Qts | Qnap | 5.1.0.2418-build_20230603 (including) | 5.1.0.2418-build_20230603 (including) |
| Qts | Qnap | 5.1.0.2444-build_20230629 (including) | 5.1.0.2444-build_20230629 (including) |
| Qts | Qnap | 5.1.0.2466-build_20230721 (including) | 5.1.0.2466-build_20230721 (including) |
| Qts | Qnap | 5.1.1.2491-build_20230815 (including) | 5.1.1.2491-build_20230815 (including) |
| Qts | Qnap | 5.1.2.2533-build_20230926 (including) | 5.1.2.2533-build_20230926 (including) |
| Qts | Qnap | 5.1.3.2578-build_20231110 (including) | 5.1.3.2578-build_20231110 (including) |
| Qts | Qnap | 5.1.4.2596-build_20231128 (including) | 5.1.4.2596-build_20231128 (including) |
| Qts | Qnap | 5.1.5.2645 (including) | 5.1.5.2645 (including) |
| Quts_hero | Qnap | h5.1.0.2409-build_20230525 (including) | h5.1.0.2409-build_20230525 (including) |
| Quts_hero | Qnap | h5.1.0.2424-build_20230609 (including) | h5.1.0.2424-build_20230609 (including) |
| Quts_hero | Qnap | h5.1.0.2453-build_20230708 (including) | h5.1.0.2453-build_20230708 (including) |
| Quts_hero | Qnap | h5.1.0.2466-build_20230721 (including) | h5.1.0.2466-build_20230721 (including) |
| Quts_hero | Qnap | h5.1.1.2488-build_20230812 (including) | h5.1.1.2488-build_20230812 (including) |
| Quts_hero | Qnap | h5.1.2.2534-build_20230927 (including) | h5.1.2.2534-build_20230927 (including) |
| Quts_hero | Qnap | h5.1.3.2578-build_20231110 (including) | h5.1.3.2578-build_20231110 (including) |
| Quts_hero | Qnap | h5.1.4.2596-build_20231128 (including) | h5.1.4.2596-build_20231128 (including) |
| Quts_hero | Qnap | h5.1.5.2647 (including) | h5.1.5.2647 (including) |
| Qutscloud | Qnap | c5.1.0.2498-build_20230822 (including) | c5.1.0.2498-build_20230822 (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