[Bro-Dev] [JIRA] (BIT-1264) HTTP response not detected on nonstandard port

Jimmy Jones (JIRA) jira at bro-tracker.atlassian.net
Mon Sep 29 02:26:07 PDT 2014

Jimmy Jones created BIT-1264:

             Summary: HTTP response not detected on nonstandard port
                 Key: BIT-1264
                 URL: https://bro-tracker.atlassian.net/browse/BIT-1264
             Project: Bro Issue Tracker
          Issue Type: Problem
          Components: Bro
    Affects Versions: git/master
         Environment: CentOS 6
            Reporter: Jimmy Jones
         Attachments: relaxed.bro, relaxed-http.sig, sample-small2-rsp.pcap, sample-small-rsp.pcap

Using the attached bro script I've tweaked the HTTP signature to match on http responses without the corresponding HTTP request TCP session. I know in a proper setup you should never get single sided traffic, but certainly when using bro as a tool you have to deal with it sometimes.

Bro handles this fine when the HTTP is on port 80, but not when on port 4321 (see attached PCAPs). I'm curious as to why?

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