topic Re: Anyone know where Palo is on NAT Slipstreaming V2? in Advanced Threat Prevention Discussions

Anyone know where Palo is on NAT Slipstreaming V2?

silvioopt — Wed, 27 Jan 2021 00:37:02 GMT

Hello,

Just curious if there is a definition for the new variant referenced here: https://www.armis.com/resources/iot-security-blog/nat-slipstreaming-v2-0-new-attack-variant-can-expose-all-internal-network-devices-to-the-internet/

Thank you!

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Wed, 27 Jan 2021 16:28:47 GMT

Hello,

I could find anything from PAN with searching. I opened a case and will let you know what they tell me.

Regards,

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Thu, 28 Jan 2021 15:44:52 GMT

Here is the reply from TAC:

We released 5 different signatures with Content: 8341 (2020-11-09 UTC).
UTIDs:
59667
59668
59669
59671
59672

Re: Anyone know where Palo is on NAT Slipstreaming V2?

Coldfirex — Thu, 28 Jan 2021 15:53:56 GMT

Do those cover the v2 variant?

Re: Anyone know where Palo is on NAT Slipstreaming V2?

silvioopt — Thu, 28 Jan 2021 15:54:07 GMT

Thanks for looking into that, but 2020-11-09 was before Nat Slipstreaming V2 was disclosed (on Jan 26th 2021).

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Thu, 28 Jan 2021 15:59:12 GMT

Good catch. I updated my ticket and will let you know what they come back with.

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Thu, 28 Jan 2021 16:34:25 GMT

From support:

According to all our evidence, the signatures will work for both variants.

Guess we are already covered. It might be good if someone could test this?

Re: Anyone know where Palo is on NAT Slipstreaming V2?

Coldfirex — Thu, 28 Jan 2021 20:43:21 GMT

FYI these are set to Alert by default. I just set ours to Drop.

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Thu, 28 Jan 2021 20:52:02 GMT

Hello,

Yes, however if you have your policy set by severity blocking everything medium and higher requires no action:

I always suggest blocking medium and higher. Double checking is a great idea!

Cheers!

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Thu, 28 Jan 2021 20:53:00 GMT

Here is how I suggest these settings be setup:

Cheers!

Re: Anyone know where Palo is on NAT Slipstreaming V2?

silvioopt — Thu, 28 Jan 2021 21:01:34 GMT

I appreciate the heads up.,

Thanks!

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Thu, 28 Jan 2021 21:02:55 GMT

Anytime!

Cheers!

Re: Anyone know where Palo is on NAT Slipstreaming V2?

Coldfirex — Thu, 28 Jan 2021 21:19:06 GMT

Good call. I forgot we had it setup like that as well.

Re: Anyone know where Palo is on NAT Slipstreaming V2?

snekkanti — Mon, 01 Feb 2021 20:51:44 GMT

Hi All, @OtakarKlier @silvioopt @Coldfirex

I am looking for answers to my customer questions, hope you can help me.

Our customer dont have threat subscription but NAT was configured on firewalls, so installing updated content package on firewalls will not mitigate this issue.

Any work around without threat subscription??
Does decryption should be enabled as well to successfully mitigate this issue??
Does this applies to all types of NAT configuration like 1-1 NAT , many to one NAT etc.??
what are the exact configuration changes needed on threat profiles that applies only to NAT traffic to mitigate this issue.

Thank you.

Re: Anyone know where Palo is on NAT Slipstreaming V2?

OtakarKlier — Mon, 01 Feb 2021 20:55:30 GMT

Hello,

I recommend a subscription to the following:

Wildfire

URL Filtering

App/Threat

You can use something else for secure DNS or can use Palo Alto's. But this is the reason why we pay for the subscriptions.

Regards,