Ruijie Networks NBR Routers Unauthenticated Arbitrary File Upload via fileupload.php
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Beijing Star-Net Ruijie Network Technology Co., Ltd. | NBR Series Routers | all versions | — | No fix listed | CNA |
- NBR Series Routers VendorBeijing Star-Net Ruijie Network Technology Co., Ltd. Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-7330
- 2026-10-03 Alias added: GHSA-m5qv-5372-fh5j
- 2026-10-25 EPSS moved to the 50th–90th percentile
References
Exploit 4
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/ruijie/ruijie-nbr-fileupload.yaml
- https://cn-sec.com/archives/1995366.html
- https://www.cnblogs.com/Domren/articles/19093295
- https://rfk0z.github.io/posts/Ruijie-NBR-router-fileupload-php-arbitrary-file-upload-vulnerability/
More Beijing Star-Net Ruijie Network Technology Co., Ltd. vulnerabilities
- TI-2020-19005 Ruijie Gateway EG & NBR Models v11.1(6)B9P1 - 11.9(4)B12P1 RCE CVSS 4.0CRITICAL 9.2
Sources
- CVE-2023-7330 · CVE Program
- CVE-2023-7330 · NVD
- FIRST EPSS
- GHSA-m5qv-5372-fh5j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences