Date: Sun, 29 Oct 2000 07:25:40 -0600 From: Jeremy Norris <ishmael27@home.com> To: Roman Shterenzon <roman@xpert.com> Cc: ports@FreeBSD.ORG Subject: Re: Remote buffer overflow in gnomeicu 0.93 Message-ID: <20001029072540.A89648@babylon.merseine.nu> In-Reply-To: <Pine.LNX.4.10.10010290137230.25903-100000@jamus.xpert.com>; from roman@xpert.com on Sun, Oct 29, 2000 at 01:38:30AM %2B0200 References: <20001028161730.A86612@babylon.merseine.nu> <Pine.LNX.4.10.10010290137230.25903-100000@jamus.xpert.com>
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Gnomeicu doesn't run with any privelege however, unless one is foolish enough to run it as root. At worse, a deviant person could crash it and gain access as an unprivleged user. Is thate enough to make a port FORBIDDEN? Jeremy On Sun, Oct 29, 2000 at 01:38:30AM +0200, Roman Shterenzon wrote: > On Sat, 28 Oct 2000, Jeremy Norris wrote: > > > I would think this would be a problem with all icq clients, since icq opens up > > a tcp port by default. Gnomeicu at least, however, lets you pick what port. > > > > Jeremy > But, gnomeicu is the only one I've seen that crashes when sent too much > data on that port. > That's security breach. > > > On Sat, Oct 28, 2000 at 12:46:08AM +0200, Roman Shterenzon wrote: > > > Hi, > > > > > > Yesterday, running sockstat I noticed that openicu listens on TCP port 4000. > > > I was curious so I fed it with some zeroes from /dev/zero, and, it crashed > > > like a charm. I'm suspecting buffer overflow which may allow an intruder > > > to receive a shell on victim's machine. > > > Looking at code advises that the port can be chosen from 4000-4100 range. > > > I believe it needs to be checked and the port marked as FORBIDDEN meanwhile. > > > Sorry if it's false alarm. > > > > > > --Roman Shterenzon, UNIX System Administrator and Consultant > > > [ Xpert UNIX Systems Ltd., Herzlia, Israel. Tel: +972-9-9522361 ] > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > > with "unsubscribe freebsd-ports" in the body of the message > > > > --Roman Shterenzon, UNIX System Administrator and Consultant > [ Xpert UNIX Systems Ltd., Herzlia, Israel. Tel: +972-9-9522361 ] > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-ports" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ports" in the body of the message
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