Security Enhancements for PT-7528/7728/7828 Series – SNMP, Telnet, and SSL Certificate

Published: January 9, 2025

This Alert Is From MOXA

As Industrial IoT (IIoT) adoption continues to proliferate, cybersecurity has become one of the top priorities. The Moxa Product Security Incident Response Team (PSIRT) takes a proactive approach to protect products from cybersecurity vulnerabilities. Moxa PSIRT investigates all reports of vulnerabilities that could potentially affect Moxa products. Moxa created a vulnerability management policy to provide guidance and information to our customers in the event of a reported vulnerability. The management policy ensures that Moxa’s customers have steady, unambiguous resources to help them understand how Moxa resolves or mitigates reported vulnerabilities. For any queries, please email [email protected].

To enhance the security of the product, users of PT-7528/7728/7828 Series should implement the mitigations described in User Manuel v9.9 to avoid the following security issues: 

SNMP 
 
  • SNMP Agent Default Community Name (public) 
  • SNMP ‘GETBULK’ Reflection DDoS 
Telnet 
 
  • Unencrypted Telnet Server 
SSL Certificate 
 
  • SSL Certificate Cannot Be Trusted 
  • SSL Certificate Chain Contains RSA Keys Less Than 2048 Bits 

 

This alert has come from: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-242721-security-enhancements-for-pt-7528-7728-7828-series-–-snmp,-telnet,-and-ssl-certificate