Multiple web server vulnerabilities have been found in the OnCell G3470A-LTE Series version 1.7.7 and prior. These vulnerabilities stem from insufficient input validation and trust in the format string from an external source. An attacker could exploit these vulnerabilities by sending crafted input to the web service. Successful exploitation of these vulnerabilities could lead to a denial-of-service attack, remote code execution, and information disclosure. 

The identified vulnerability types and potential impacts are shown below:

Vulnerability Scoring Details 

Affected Products:

The affected products and firmware versions are shown below.

Solutions:

Moxa has developed appropriate solutions to address the vulnerabilities. The solutions for affected products are shown below.

Mitigation:

• Minimize network exposure to ensure the device is not accessible from the Internet. 
• When remote access is required, use secure methods, such as Virtual Private Networks (VPNs). 
• The starting point of all the above vulnerabilities is from the web service, so it is suggested to disable web service temporarily if you completed configuration to prevent further damages from these vulnerabilities until installed patch or updated firmware. 

Products That Are Not Vulnerable:

Only the products listed in the Affected Products section of this advisory are known to be affected by this vulnerability.

Acknowledgment:

We would like to express our appreciation to Nikita Abramov from Positive Technologies for reporting the vulnerability, working with us to help enhance the security of our products, and helping us provide a better service to our customers. 

Revision History: