atom feed10 messages in org.freebsd.freebsd-ispRe: Two sources for system-cracking t...
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Wut!?Dec 29, 1997 10:44 am 
UC Computer / Transbay.NetDec 29, 1997 1:39 pm 
Jordan K. HubbardDec 29, 1997 8:44 pm 
Wut!?Dec 30, 1997 2:02 am 
MikeDec 30, 1997 8:44 am 
Poul-Henning KampDec 30, 1997 10:24 am 
MikeDec 30, 1997 12:45 pm 
Blaine MinazziDec 30, 1997 1:37 pm 
Eric C. S. DynamicDec 30, 1997 4:19 pm 
Michael SlaterDec 30, 1997 5:12 pm 
Subject:Re: Two sources for system-cracking tools
From:Michael Slater (mik@atlas.iexpress.net.au)
Date:Dec 30, 1997 5:12:22 pm
List:org.freebsd.freebsd-isp

That actually happend to me once, but it was a while ago when i was using the buggy version of wu.ftpd . I fixed that particular bug a while ago.

Michael

On Tue, 30 Dec 1997, Eric C. S. Dynamic wrote:

Mike wrote:

On Tue, 30 Dec 1997, Wut!? wrote:

Yeah, Rootshell.com isn't very good with his information, and there is a very simple explanation why .. (He runs linux!)..

[...]- saying "He runs linux" is an explanation for poor logic is like saying [...]

He (rootshell) got the data from somewhere, maybe it's wrong. No point in being bigoted against Linux. When I justify choosing FreeBSD over Linux I just tell people it's real BSD and that it has a reputation for being more robust, that we use it and there's only one kind. And I don't care to learn about another sorta-similar, sort-different system unless I have to (no time.)

Meanwhile, I reported those two sources for hacker-stuff out as a notice (what land doc said of itself) and a question (does teardrop work if you're not using the firewall.) Someone hacked our system by creating an executable suid-root copy of /bin/sh in /tmp, and this is the second time someone's been able to do that, this time I discovered it about 12 minutes after the file was created, but I'd like to know "how they do that" and I'd like to plug the hole. The user I axed had a dozen-plus hack'em crack'em thingys lying around, for experimentation. Maybe one of them works, but which one? A lot of them try to manipulate the stack at a machine level, apparently.

If the suid-root /bin/sh in /tmp rings a bell, let me know a countermeasure. Thanks.