The class FileTransfer implemented in Brocade SANnav before v2.3.1, v2.3.0a, uses the ssh-rsa signature scheme, which has a SHA-1 hash. The vulnerability could allow a remote, unauthenticated attacker to perform a man-in-the-middle attack.
The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.