topic Re: Security policy: exception question in General Topics

Security policy: exception question

TLineberry — Wed, 22 Mar 2017 13:28:47 GMT

Hi, I'm trying to create a security policy that would block all critical traffic from source zone "A", to destination zone "B". However, I want to allow traffic from a specific IP in zone "A". How can I make an exception to allow that IP? I assume I could create a policy to allow that IP and then one below it block traffic from that zone but I would prefer not to do that- feel like it could be error prone, etc.

Thank you!

Re: Security policy: exception question

santonic — Wed, 22 Mar 2017 13:51:01 GMT

Hmm, define 'critical traffic'. Applications with high risk? Critical events from some security profile?

Re: Security policy: exception question

TLineberry — Wed, 22 Mar 2017 13:53:22 GMT

Sorry, should have elaborated on that part. By critical traffic I meant critical threats. Planning on doing that in the profiles.

Re: Security policy: exception question

santonic — Wed, 22 Mar 2017 14:07:35 GMT

I would suggest blocking at least critical events on all traffic, but ok.

Yeah, you have to make a rule for that specific IP first with security profile set to alert (or no security profile).

After that rule you make a rule from zone A to B with blocking security profile.

Re: Security policy: exception question

reaper — Wed, 22 Mar 2017 14:22:27 GMT

for a single or a few threats you can add an IP exception in the vulnerability protection profile in the exceptions tab, but if you want to exclude an ip from all scanning it's better to create a new rule with a different (alert all) profile

Re: Security policy: exception question

santonic — Wed, 22 Mar 2017 14:29:48 GMT

Ohh, didn't know about 'ip exemptions' query so far.

Re: Security policy: exception question

reaper — Wed, 22 Mar 2017 14:33:19 GMT

@santonic wrote:

Ohh, didn't know about 'ip exemptions' query so far.

bonus: you can also add IP exceptions (or policy exceptions) directly from the threat log:

Re: Security policy: exception question

TLineberry — Wed, 22 Mar 2017 18:58:07 GMT

We do block all critical events already, just trying to get a better idea of some things and using a policy for it. I appreciate the help. I think my only option is creating two separate rules.

Re: Security policy: exception question

ansharma — Fri, 24 Mar 2017 06:11:58 GMT

Hi TLineberry,

Use the 'Negate' option.

Create a rule which allows the traffic rule like this:

Source Zone = A

Source address = the ones you want to allow AND check the box for 'Negate'

Destination Zone = B

Destination Zone = Allow

Application/Service/Security profile = your choice

Action = Allow

The unwanted IPs would hit the interzone rule, IFF they don't happen to match some other rule.

Hope that helps.

Regards,

Anurag

Re: Security policy: exception question

TLineberry — Mon, 27 Mar 2017 14:55:57 GMT

This is exactly what I'm looking for. Thank you!!