[Bro-Dev] [JIRA] (BIT-1521) known services should probably ignore gridftp-data

Seth Hall (JIRA) jira at bro-tracker.atlassian.net
Wed Feb 17 09:23:00 PST 2016


    [ https://bro-tracker.atlassian.net/browse/BIT-1521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=24201#comment-24201 ] 

Seth Hall commented on BIT-1521:
--------------------------------



What if you change known_services to...

{code}
table[addr, port] of set[string]
{code}

Then you could avoid the case you laid out here, which I suspect in production would be pretty annoying.



> known services should probably ignore gridftp-data
> --------------------------------------------------
>
>                 Key: BIT-1521
>                 URL: https://bro-tracker.atlassian.net/browse/BIT-1521
>             Project: Bro Issue Tracker
>          Issue Type: Improvement
>          Components: Bro
>    Affects Versions: 2.4
>            Reporter: Justin Azoff
>            Assignee: Justin Azoff
>            Priority: Low
>             Fix For: 2.5
>
>
> known services script does
> {code}
>         if ( ! addr_matches_host(id$resp_h, service_tracking) ||
>              "ftp-data" in c$service || # don't include ftp data sessions
>              ("DNS" in c$service && c$resp$size == 0) ) # for dns, require that the server talks.
>                 return;
> {code}
> but should probably also ignore gridftp-data.  Probably a good idea to add a set of services that behave like ftp for it to check.



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