Broadcom Brocade SANnav is prone to a security-bypass vulnerability. An attacker can exploit this issue to perform man-in-the-middle attacks and perform certain unauthorized actions, which will aid in further attacks. Versions prior to Brocade SANnav 2.0 are vulnerable.
Block external access at the network boundary, unless external parties require service.
Filter access to the affected computer at the network boundary if global access isn't needed. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from a successful exploit.
Communicate sensitive information over encrypted channels.
Ensure that only encrypted channels are used for communicating sensitive information.
Vendor updates are available. Please see the references for more information.