This seems to be the default behavior for the LSI Megaraid Storage Manager on Linux (remote displayed via ssh X11 forwarding) for at least versions 8.x, 9.x, and 11.x. The application seems to hook into PAM for authentication so access is granted via regular system user accounts.
For administrative level or “Full Access” access, with the ability to modify the configuration:
User Name: root Password: "system root password"
For read only or “View Only” acess:
User Name: "any system non-UID zero account" Password: "system password for that user account"