Beijing Star-Net Ruijie Network NBR Router 2025-01-14 Endpoint fileupload.php uploadDir unrestricted upload

Summaryinfo

A vulnerability categorized as critical has been discovered in Beijing Star-Net Ruijie Network NBR Router 2025-01-14. This affects an unknown function of the file /ddi/server/fileupload.php of the component Endpoint. Executing a manipulation of the argument uploadDir can lead to unrestricted upload. This vulnerability appears as CVE-2023-7330. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in Beijing Star-Net Ruijie Network NBR Router 2025-01-14 and classified as critical. This vulnerability affects an unknown functionality of the file /ddi/server/fileupload.php of the component Endpoint. The manipulation of the argument uploadDir with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Ruijie NBR series routers contain an unauthenticated arbitrary file upload vulnerability via /ddi/server/fileupload.php. The endpoint accepts attacker-supplied values in the name and uploadDir parameters and saves the provided multipart file content without adequate validation or sanitization of file type, path, or extension. A remote attacker can upload a crafted PHP file and then access it from the web root, resulting in arbitrary code execution in the context of the web service. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-14 UTC.

The advisory is available at github.com. This vulnerability was named CVE-2023-7330 since 11/24/2025. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 11/25/2025). This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

By approaching the search of inurl:ddi/server/fileupload.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-198992). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Router Operating System

Vendor

• Beijing Star-Net Ruijie Network

Name

• NBR Router

Version

• 2025-01-14

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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CVSSv3info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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