[asterisk-bugs] [JIRA] (ASTERISK-23673) Security: DOS by consuming the number of allowed HTTP connections.

[Matt Jordan (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-23673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Jordan updated ASTERISK-23673:
-----------------------------------

    Target Release Version/s: 1.8.29.0

> Security: DOS by consuming the number of allowed HTTP connections.
> ------------------------------------------------------------------
>
>                 Key: ASTERISK-23673
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23673
>             Project: Asterisk
>          Issue Type: Bug
>          Components: Core/HTTP
>    Affects Versions: 1.8.27.0, 11.9.0, 12.2.0
>            Reporter: Richard Mudgett
>            Assignee: Richard Mudgett
>            Severity: Critical
>              Labels: Security
>      Target Release: 1.8.28.2, 1.8.29.0, 11.10.2, 11.11.0, 12.3.2
>
>
> Simply establishing a TCP connection and never sending anything to the configured HTTP port in http.conf will tie up a HTTP connection.  Since there is a maximum number of open HTTP sessions allowed at a time you can block legitimate connections.
> A similar problem exists if a HTTP request is started but never finished.
> A timeout needs to be implemented to mitigate this kind of attack.
> I'm fairly certain that this has always existed in Asterisk's HTTP implementation.  It has just become more serious with the addition of ARI.



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