Ruijie RG-EW1200G PRO 1.00/2.00/3.00/4.00 POST config_retain.lua module_set os command injection

Summaryinfo

A vulnerability has been found in Ruijie RG-EW1200G PRO 1.00/2.00/3.00/4.00 and classified as critical. The affected element is the function module_set of the file /usr/local/lua/dev_config/config_retain.lua of the component POST Handler. Performing a manipulation results in os command injection. This vulnerability is known as CVE-2025-56090. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Ruijie RG-EW1200G PRO 1.00/2.00/3.00/4.00. This affects the function module_set of the file /usr/local/lua/dev_config/config_retain.lua of the component POST Handler. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

OS Command Injection vulnerability in Ruijie RG-EW1200G PRO RG-EW1200G PRO V1.00/V2.00/V3.00/V4.00 allowing attackers to execute arbitrary commands via a crafted POST request to the module_set in file /usr/local/lua/dev_config/config_retain.lua.

The advisory is shared at 1drv.ms. This vulnerability is uniquely identified as CVE-2025-56090 since 08/16/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/12/2025). MITRE ATT&CK project uses the attack technique T1202 for this issue.

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

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Productinfo

Vendor

• Ruijie

Name

• RG-EW1200G PRO

Version

• 1.00
• 2.00
• 3.00
• 4.00

CPE 2.3info

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CPE 2.2info

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Entryinfo

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