topic Palo Alto can block URLs with queries which comes after the “?”, in General Topics

Palo Alto can block URLs with queries which comes after the “?”,

Mohammed_Yasin — Mon, 08 Jun 2020 08:29:24 GMT

Our Palo Alto is running 8.1.10, and we integrate it with TrendMicro to receive dynamic URL lists.

We would like to know if Palo Alto can block URLs with queries, what I mean by queries is the part of the URL which comes after the “?”,

for example, http://www.test.com/search?q=test&rlz=1C1GCEA http://www.test.com/en/search/Pages/results.aspx?k=test

Re: Palo Alto can block URLs with queries which comes after the “?”,

kiwi — Mon, 08 Jun 2020 09:31:59 GMT

Hi @Mohammed_Yasin ,

Not sure how granular you want to go but you could create custom signatures using regex pattern matches. This has some limitations though. The pattern must have string of at least 7 bytes to match. It can contain more than 7 bytes, but not fewer.

Cheers,

-Kim.

Re: Palo Alto can block URLs with queries which comes after the “?”,

Mohammed_Yasin — Mon, 08 Jun 2020 09:35:32 GMT

Thanks for the update...

I mean..For example, can Palo Alto block this exact URL,

https://www.amazon.com/Bats-Lou-Diamond-Phillips/dp/B006FDT6L0/ref=sr_1_1?dchild=1&keywords=bats&qid=1591604071&sr=8-1

But allow all other AMAZON URLs

Re: Palo Alto can block URLs with queries which comes after the “?”,

kiwi — Mon, 08 Jun 2020 11:48:08 GMT

Hi @Mohammed_Yasin ,

If you want to block this specific URL then you can add it into a custom URL category and block the category.

Alternatively you can create a custom signature and match a pattern for anything after the "?" and block that.

Maybe try a custom signature with a pattern match on "keywords=bats"

As this is SSL traffic you'll also need to make sure to decrypt the traffic first ...

Looks kinda ugly though and difficult to manage if you need to add more of those regularly.

-Kiwi.