Network misconfigurations

Elastic Load Balancer (ELB) allows ingress access to MySQL port 3306

Risk Level

Hazardous (3)

Platform(s)
Compliance Frameworks

Description

MySQL port - 3306 is used by MySQL server to listen to requests from clients. Allowing inbound traffic from all external IP addresses to MySQL is vulnerable to DoS, Buffer Overflow, and SQL Injection attacks. It is a best practice to block public access, and restrict access from specific IP addresses to port 3306.
  • Recommended Mitigation

    It is recommended to replace the source IP of the rule with a specific IP address or delete the rule.