full-disclosure - Re: new openssh exploit in the wild! *isFAKE AS SH@!*

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Message-ID: <6E4E9A51D91C044F9879FD72389600F73602A6@new_iron.vigilantminds.com>
From: brian.dinello at vigilantminds.com (Brian Dinello)
Subject: Re: new openssh exploit in the wild! *isFAKE AS SH@!*

All:

Just to add to the readily growing list of stupid things this "exploit"
does, it set off my Snort IDS when attemping to root my test box.  Looks
like it _may_ actually incorporate some shell code in a REALLY old CRC32
overflow from 2001.  Here's the CVE link, if anyone's interested:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2001-0144

And the snort sig that it hit:
alert tcp $EXTERNAL_NET any -> $HOME_NET 22 (msg:"EXPLOIT ssh CRC32
overflow NOOP"; flow:to_server,established; content:"|90 90 90 90 90 90
90 90 90 90 90 90 90 90 90 90|"; reference:bugtraq,2347;
reference:cve,CVE-2001-0144; classtype:shellcode-detect; sid:1326;
rev:3;) 

And the systems that it _may_ be able to affect/infect:
Affected Systems:
    OpenSSH versions prior to 2.2
    Multiple Cisco network devices
    Multiple Netscreen network devices
    SSH Secure Communications prior to 1.2.31

Needless to say, I doubt anyone will soon be reporting any instances of
this piece of code actually doing anything to a remote host. 

Brian Dinello, CISSP

-----Original Message-----
From: Adam Balogh [mailto:adam@...tnet.net] 
Posted At: Friday, September 19, 2003 8:59 AM
Posted To: Full Disclosure
Conversation: [Full-Disclosure] Re: new openssh exploit in the wild!
*isFAKE AS SH@!*
Subject: Re: [Full-Disclosure] Re: new openssh exploit in the wild!
*isFAKE AS SH@!*

Probably a scriptkiddie or some random idiot. The fun part was it came
up totally different offsets then i mean TOTALLY different each time you
ran it and if you gave it a offset it would "work" no matter what. For
those people who ran it.. change all your 
passwords. :)

/Adam

Vitaly Osipov wrote:
On Fri, 2003-09-19 at 14:21, V.O. wrote:
> Yeah, I missed the fact that after "calculating" the offset it starts 
> to "exploit" in the same way as if it was given an offset as a 
> parameter. Anyway, I simply wanted to note that whoever posted it here

> was either knowingly lying about its purpose or not having a clue 
> about UNIX at all :)
> 
> W.
> 
> 
> ----- Original Message -----
> From: "Adam Balogh" <adam@...tnet.net>
> To: "Full Disclosure" <full-disclosure@...sys.com>
> Sent: Friday, September 19, 2003 9:47 PM
> Subject: Re: [Full-Disclosure] Re: new openssh exploit in the wild! *
isFAKE
> AS SH@!*
> 
> 
> > Vitaly Osipov wrote:
> > > which is obviously not true. Btw as far as I understand, the 
> > > troyan code
> is triggered when
> > > the "exploit" is run with the offset specified, and not in a
> "bruteforcing" mode.
> > >
> > > W.
> >
> > Me and my friend tried to run it on a lab-box thats not connected 
> > directly to internet and doesnt relay mails. It doesn't use that 
> > special offset as a trigger. We got so many "sys3" accounts in 
> > /etc/passwd as many times we ran it plus those outgoing-mails que'd.
> >
> > /Adam Balogh
> >
> > _______________________________________________
> > Full-Disclosure - We believe in it.
> > Charter: http://lists.netsys.com/full-disclosure-charter.html
> >
> >
> 
> 

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