Executive Summary

CVE-2026-3025 is a vulnerability in the ShuoRen Smart Heating Integrated Management Platform version 1.0.0 that allows unauthenticated attackers to upload arbitrary files remotely. This flaw exists in the file /MP/Service/Webservice/ExampleNodeService.asmx, specifically due to improper handling of the File argument, which leads to unrestricted file upload.

Attackers can upload files without logging in via the endpoint ExampleNodeService.asmx/UpFileToExample. Uploaded files are stored in a predictable directory and can be enumerated and accessed publicly without authentication through another endpoint, enabling both upload and download of malicious files.

The server runs Microsoft IIS 8.5 with ASP.NET 4.0.30319, and a proof-of-concept exploit has been published demonstrating the attack.

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Impact Analysis

This vulnerability can have significant impacts including unauthorized access and manipulation of the system. Attackers can upload malicious files that may be executed or processed by the platform, potentially compromising the confidentiality, integrity, and availability of the system.

Because the uploaded files can be accessed publicly without authentication, attackers can also download sensitive or malicious content, leading to further exploitation or system compromise.

The vulnerability is remotely exploitable without any authentication, making it highly accessible and increasing the risk of attack.

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Compliance Impact

I don't know

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Detection Guidance

[{'type': 'paragraph', 'content': 'This vulnerability can be detected by attempting to upload a file to the endpoint ExampleNodeService.asmx/UpFileToExample using a POST request with multipart form data. A successful upload will return a 200 OK response along with the file path in the service response.'}, {'type': 'paragraph', 'content': 'After uploading, you can verify the presence of the uploaded file by sending an HTTP GET request to the ExampleNodeService.asmx/GetExampleNodeStr endpoint to enumerate and access the uploaded files publicly without authentication.'}, {'type': 'paragraph', 'content': 'Example commands using curl to test the vulnerability:'}, {'type': 'list_item', 'content': 'Upload a file: curl -X POST -F "[email protected]" http://[target]/MP/Service/Webservice/ExampleNodeService.asmx/UpFileToExample'}, {'type': 'list_item', 'content': 'Check uploaded file: curl http://[target]/MP/Service/Webservice/ExampleNodeService.asmx/GetExampleNodeStr'}] [1]

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Mitigation Strategies

There are no known countermeasures or patches available from the vendor, as they did not respond to the disclosure.

Immediate mitigation steps include replacing the affected ShuoRen Smart Heating Integrated Management Platform version 1.0.0 with an alternative solution that is not vulnerable.

Additionally, restricting access to the vulnerable endpoints via network controls such as firewalls or web application firewalls (WAF) may help reduce exposure.

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