Synway SMG Gateway Management Software OS Command Injection via radius_address
Vulnerability Description
Synway SMG Gateway Management Software contains an OS command injection vulnerability in the RADIUS configuration endpoint at /en/9-2radius.php where the radius_address POST parameter is split and interpolated directly into a sed command without sanitization. An unauthenticated remote attacker can inject arbitrary shell commands by submitting a POST request with crafted radius_address, radius_address2, shared_secret2, source_ip, timeout, or retry parameters along with save=1 and enable_radius=1 to achieve remote code execution. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-07-11 (UTC).
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- The Shadowserver Foundation
References
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/synway/synwaysmg-radius-rce.yaml
- https://mrxn.net/jswz/synway-9-2radius-rce.html
- https://mp.weixin.qq.com/s/PyepoFSuQ63E3RnpQa9nsA
- https://www.synway.net/
- https://www.vulncheck.com/advisories/synway-smg-gateway-management-software-os-command-injection-via-radius-address
Affected Vendor
Synway Information Engineering Co., Ltd.
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