Something must be done! (Security)

[John Kloian III]

Sounds like you've had quite a little adventure Jiva.  Yes, -lp will give
you the listen ports.

John Kloian III
____________________________________________________________________________
Vice President/CIO 		         Wired Global Communications, Inc.
Phone:  602.674.9900 ext. 103	 "Specializing in Open Source Network Solutions"
Fax:    602.674.8725       	            http://www.wiredglobal.net






On Fri, 3 Mar 2000 jiva@devware.com wrote:

> I'm not sure which packages were actually exploited, but I know that
> on at least one of the machines both the FTP d and the named were old,
> and had known root exploits.  I suspect the other machine had the same
> issues.  On one of the machines, we ran a nessus scan on it, and found
> mysteriously, on port 516 a telnet daemon running.  We attempted to
> connect to it, and found that it logged in the /var/log/secure as
> in.taskd, but we could find no other references to it.  Did a locate
> for taskd, and locate said it was in /usr/sbin/in.taskd but it wasn't!
> We'd also noticed some weird behavior such as top not working right
> anymore and netstat not working right etc (red flags).
> 
> So we did a bit more looking, and then I started thinking, well, if
> it's logging in secure, it must be running through inetd, but we
> didn't find anything in inetd.conf.  Sooo, I did a locate for inetd to
> see if maybe I could tell anything from that, and lo and behold, there
> was a SECOND inetd in "/usr/ /tools"  ! (yes, that's a space there,
> isn't that clever? ;D)  Soo, I did a bit more looking, and yep, that
> was how he came back after the initial sploit.  He had a nifty little
> script that would cover his tracks by removing his traces from secure
> etc.
> 
> Anyway, he wasn't that great because though he replaced all the
> naughty bits, he didn't update the RPM database, and so a quicky rpm
> --verify -a gave me a list of all the core files that have been
> changed.  We're checking that out right now to determine if we should
> just to a full reinstall.
> 
> Speaking of which, what's the commandline for netstat to give you a
> listing of all the listening ports?  Is it netstat -lp?
> 
> On Fri, Mar 03, 2000 at 01:05:07AM -0700, Jay wrote:
> > 
> > 
> > Hey Jiva. Although I don't keep up on the RH stuff, I think I saw
> > something like this come across the daily Freshmeat batch within the last
> > week or so. You may want to do a search over there.
> > 
> > Question -- What packages were sploited on their systems? Share with the
> > rest of us some of the details so that we can all make sure we're up to
> > date... :)
> > 
> > ~Jay
> > 
> > 
> > On Fri, 3 Mar 2000 jiva@devware.com wrote:
> > 
> > > 2 count em 2 of my friends running linux discovered tonight their
> > > machines had been rooted!  And the only reason was because they didn't
> > > keep their packages up to date.  Does anyone know of a script that'll
> > > get just the latest security fixes on RedHat?
> > 
> > - J a y   J a c o b s o n     
> > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> > - President / CEO             Wired Global Communications, Inc.
> > - Fax: 602.674.8725              Internet Engineering Solutions
> > - Voice: 602.674.9900                http://www.wiredglobal.net 
> > 
> > In a world where an admin is rendered useless when the ball in his mouse
> > has been taken out, it is good to know that I know UNIX.
> > 
> > 
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> 
> -- 
> petribar:
> 	Any sun-bleached prehistoric candy that has been sitting in
> 	the window of a vending machine too long.
> 		-- Rich Hall, "Sniglets"
> 
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