Update openvimd.cfg because of vulnerability related to db_user and db_passwd

The file contains several settings related to OpenVIM, including configurations for networks, databases, and OpenFlow controllers. Among these settings, there is sensitive information related to:

Credentials:

Database user and password (db_user, db_passwd).

OpenFlow controller username and password.

These credentials should be encrypted or hidden, but the file contains them in plain text, increasing the risk of unauthorized access.

Network Information:

IP address and port number for the OpenFlow Controller.

VLAN Range used for creating underlay dataplane networks.

If exposed, attackers could access the device and manipulate network settings.

Server Settings:

IP and Port of the servers where OpenVIM is running.

These settings provide insight into the internal systems, which could be exploited if they are not adequately protected.

DHCP Settings:

Some sections of the file point to configurations for external DHCP servers. These settings may allow attackers to manipulate IP allocations within the network.

Security Analysis: Unencrypted Sensitive Data:

The database credentials (username and password) are stored in plain text within the configuration file. This exposes the system to significant risks if the file is accessed by unauthorized users.

Unprotected Ports:

Default ports like 9080 and 9085 are used without additional protection, leaving these ports vulnerable to remote attacks.

Unauthorized Access:

Because this file contains crucial information, such as OpenFlow Controller connection details, attackers could exploit this information to gain access to the system or interfere with network management.

Insecure Settings:

Leaving passwords and usernames in plain text makes them susceptible to exploitation, leading to system breaches or unauthorized access to production environments.