Hi Al,

Thanks for the response. Unfortunately, I can not share the PCAP. Port 8080 is in the HTTP stream. How would I check for the proper http preprocessors?

Interestingly, when i removed established from the rule, it worked. I am not sure why because the server responded with a HTTP OK.

Thanks.

On Fri, May 31, 2019 at 10:36 AM Al Lewis (allewi) <allewi@cisco.com> wrote:

Is port 8080 within your stream and http preprocessors?

 

Can you share the pcap?

 

 

Albert Lewis

ENGINEER.SOFTWARE ENGINEERING

Cisco Systems Inc.

Email: allewi@cisco.com

 

 

 

From: Snort-users <snort-users-bounces@lists.snort.org> on behalf of My Account via Snort-users <snort-users@lists.snort.org>
Reply-To: My Account <researchitdammit@gmail.com>
Date: Friday, May 31, 2019 at 10:26 AM
To: "snort-users@lists.snort.org" <snort-users@lists.snort.org>
Subject: [Snort-users] Snort 2.9.13 not recognizing server response in PCAP.

 

Hi,

 

I have a situation where snort does not appear to be recognizing packets that I have in a PCAP. The packet in question is a simple HTTP server response. The rule is setup to read content in the packet. 

 

The server port is 8080. At this point, I can not figure out which configuration setting to change to get snort to parse the server response.

 

Sample Rule:

alert tcp any any -> any any \

( \

 msg: "Alert"; \

flow:from_server,established; \

content:"password"; \

sid:6000002; rev:1; \

)

 

 

Thanks.