[Bro-Dev] [JIRA] (BIT-947) Incorrect size calculation for SSH failed/successful heuristic

grigorescu (JIRA) jira at bro-tracker.atlassian.net
Wed Mar 18 10:10:01 PDT 2015

    [ https://bro-tracker.atlassian.net/browse/BIT-947?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=20020#comment-20020 ] 

grigorescu commented on BIT-947:

Yes - since the new SSH analyzer does away with the heuristic entirely, this issue will be addressed.

> Incorrect size calculation for SSH failed/successful heuristic
> --------------------------------------------------------------
>                 Key: BIT-947
>                 URL: https://bro-tracker.atlassian.net/browse/BIT-947
>             Project: Bro Issue Tracker
>          Issue Type: Problem
>          Components: Bro
>    Affects Versions: git/master
>            Reporter: grigorescu
>            Priority: Low
>             Fix For: 2.4
> We're getting a lot of false positives for successful SSH logins from a source that we recently blackholed. I suspect what's happening is that the retransmissions keep bumping up the size of the connection, until it crosses the threshold for a "successful" connection. 
> With the changes from BIT-730: Find and fix tcp sequence counting bugs, is it possible to improve the accuracy of the reported size?

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