AWS EC2 instance allows public ingress access on LDAP port 389
- Orca Best Practices
DescriptionLDAP (Lightweight Directory Access Protocol) is used to connect to directory services for user authentication and retrieval. Allowing Inbound traffic from external IPv4 addresses to LDAP ports can lead to attacks like DoS, Brute Force, Smurf and reconnaissance. It is a best practice to restrict the inbound traffic from specific addresses.
It is recommended to replace the source IP of the rule with a specific IP address or delete the rule.