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From Kris Spinka <kspi...@style.net>
Subject mod_jserv/4226: The ServerSocket is binding to IN_ADDR_ANY
Date Sun, 11 Apr 1999 23:52:56 GMT

>Number:         4226
>Category:       mod_jserv
>Synopsis:       The ServerSocket is binding to IN_ADDR_ANY
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    jserv
>State:          open
>Class:          support
>Submitter-Id:   apache
>Arrival-Date:   Sun Apr 11 17:00:01 PDT 1999
>Originator:     kspinka@style.net
>Release:        1.0b3
The ServerSocket is binding to IN_ADDR_ANY which is a potential performance issue, but more
importantly exposes the servlet engine to the outside world, DoS attacks are way to simple

This can easily be rectified in src/java/org/apache/java/net/AuthenticatedServerSocket.java
when the call to the superclass's constructor occurs.  As in interim fix, I set mine to bind
only to or InetAddress.getByName("localhost") as the third parameter.  As a long
term fix I think the jserv.properties should contain not only a port directive but an address/port
pair similar to the Listen directive in Apache would be nice.  I would like to help with this
effort on other fronts if any is needed please get in touch.
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