Date: Sat, 22 Nov 2014 11:36:58 -0800 From: Russ Allbery <eagle@...ie.org> To: Marc Chadwick <marc@...dwick.net> Cc: oss-security@...ts.openwall.com, Tim Brown <tmb@...35.com> Subject: Re: Running Java across a privilege boundry Marc Chadwick <marc@...dwick.net> writes: > I thought tomcat 6 used authbind in its init script, but I could be > wrong. If that's the case, authbind is written in C, so I'm not sure > that's what Tim has in mind. Similarly, jsvc is written in C. Maybe the > tabuki wrapper service? Ah, I see what you're getting at. I don't think I've ever used authbind with Tomcat (no need -- I never use privileged ports with it), but (since I use Debian) it gets spawned through start-stop-daemon, which is also written in C. You're saying that the running of the Java program has to be done *directly* by sudo for some reason? The initial question was a little obscure to me. I'm not sure what security problem the original poster is worried about. Starting Tomcat via sudo with that init script is indeed crossing a privilege boundary to run a Java program, but there are several layers of indirection there. Anyway, I have certainly worked with systems with command-line utilities written directly in Java that are run via sudo or other similar tools. The one that comes to mind (Zimbra) isn't open source, but I'm sure there are plenty of others. -- Russ Allbery (eagle@...ie.org) <http://www.eyrie.org/~eagle/>
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