An uncontrolled resource consumption vulnerability exists in the upload-link endpoint of mintplex-labs/anything-llm. This vulnerability allows attackers to cause a denial of service (DOS) by shutting down the server through sending invalid upload requests. Specifically, the server can be made to shut down by sending an empty body with a Content-Length: 0 header or by sending a body with arbitrary content, such as asdasdasd, with a Content-Length: 9 header. The vulnerability is reproducible by users with at least a Manager role, sending a crafted request to any workspace. This issue indicates that a previous fix was not effective in mitigating the vulnerability.
The product does not properly control the allocation and maintenance of a limited resource.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Anythingllm | Mintplexlabs | * | 1.0.0 (excluding) |
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.