After running a security scan the IPS system log reports the following error: “SSL certificate has expired, probably because date is incorrect on this device“
This error is caused by a security scanner software program attempting to logon to a TippingPoint device utilizing an expired SSL certificate. This is a normal action from the security product that simulates an attacker attempting to gain access, the response from the TippingPoint device is normal.
Best practice when configuring the management port
TippingPoint recommends configuring the management port on the TippingPoint device to use a non-routed IP address from the RFC-1918 Private Address space. This helps to prevent direct attack on the management port from the Internet. Additionally, the management port IP Address filter feature should be used to limit access to the management port. Only addresses defined by the command will be allowed to access the IPS. Host IP filters are essentially Access Control Lists (ACLs) on the management port of the IPS.
When the device is initially configured, the default security policy is "permit any". Once you establish a host IP filter, whether it is a permit or deny, then the default IP filter becomes "deny any". (The old legal idea of the inclusion of one is to the exclusion of all others.) If you are doing this via SSH (not the console), the first thing you must do is a permit rule for the IP address you are on or you will deny your IP access to the management port inadvertently.