Re: Returned Errors for CISA Snort Rules

["John W. Blue via Snort-sigs" <snort-sigs () lists snort org>]

Insights?  That is SOP for CISA right there.

"We recommend that you should do this *but* if it does not work it is up to you to figure out how we screwed up."

You should see the amazing dysfunction of CISA trying to explain how to fill out/answer a data call for any recently 
released BOD.  It happens.every.single.time.

John

-----Original Message-----
From: Snort-sigs [mailto:snort-sigs-bounces () lists snort org] On Behalf Of chris
Sent: Thursday, January 6, 2022 6:21 PM
To: snort-sigs () lists snort org
Subject: [Snort-sigs] Returned Errors for CISA Snort Rules

Hello,
I've been trying to implement Snort rules provided by the CISA but I'm receiving errors when the classtype field 
contains the value "http-uri" 
or "http-header"  (examples provided below). These are not default Snort classtypes. Can someone provide some insight 
on how to either define these classtypes OR provide a good alternative classtype?
Thanks in advance for any insight you can provide!

Best,
Chris

alert tcp any any -> any $HTTP_PORTS (msg:"NANOCORE:HTTP GET URI contains 'FAD00979338'"; sid:00000000; rev:1; 
flow:established,to_server; content:"GET"; http_method; content:"getPluginName.php?PluginID=FAD00979338"; fast_pattern; 
http_uri; classtype:http-uri; metadata:service http;)

alert tcp any any -> any $HTTP_PORTS (msg:"HTTP Client Header contains 'host|3a 20|polkiuj.top'"; sid:00000000; rev:1; 
flow:established,to_server; flowbits:isnotset,<unique_ID>.tagged;
content:"host|3a 20|polkiuj.top|0d 0a|"; http_header; fast_pattern:only; flowbits:set,<unique_ID>.tagged; 
tag:session,10,packets; classtype:http-header; metadata:service http;) _______________________________________________
Snort-sigs mailing list
Snort-sigs () lists snort org
https://lists.snort.org/mailman/listinfo/snort-sigs

Please visit http://blog.snort.org for the latest news about Snort!

Please follow these rules: https://snort.org/faq/what-is-the-mailing-list-etiquette

Visit the Snort.org to subscribe to the official Snort ruleset, make sure to stay up to date to catch the most <a 
href=" https://snort.org/downloads/#rule-downloads";>emerging threats</a>!
_______________________________________________
Snort-sigs mailing list
Snort-sigs () lists snort org
https://lists.snort.org/mailman/listinfo/snort-sigs

Please visit http://blog.snort.org for the latest news about Snort!

Please follow these rules: https://snort.org/faq/what-is-the-mailing-list-etiquette

Visit the Snort.org to subscribe to the official Snort ruleset, make sure to stay up to date to catch the most <a 
href=" https://snort.org/downloads/#rule-downloads";>emerging threats</a>!