full-disclosure - Re: 0day LINUX 0day LATEST

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Message-Id: <E15D72EA-D7E7-403E-BA67-E771419ED3BD@ucl.ac.uk>
Date: Mon, 28 Jan 2008 15:53:32 +0000
From: Andrew Dawson <a.dawson@....ac.uk>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: 0day LINUX 0day LATEST

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On 28 Jan 2008, at 10:55, Andrew Farmer wrote:

> On 28 Jan 08, at 02:13, wejwklekl246 wrote:
>> /* !!PRIVATE !!PRIVATE !!PRIVATE !!PRIVATE !!PRIVATE !!PRIVATE
>> *
>> * afunixroot.c Linux kernel 2.6.x i386 local root exploit
>
> <blah blah blah>
>
> Compiles a shared library in /tmp/own.so containing the functions
>
> 	int getuid() { return 0; }
> 	int geteuid() { return 0; }
> 	int getgid() { return 0; }
> 	int getegid() { return 0; }
>
> and executes /bin/sh with LD_PRELOAD=/tmp/own.so
>
> Pretty lame. Protip: "hellc0de" containing lots of \x61-\x7f looks  
> fake.

This whole exploit program is seemingly a massive obsfucation exercise.

Apart from the above, the prepare() function has "hidden" socket()  
and sendto() calls to send a 64 byte parameter block to 213.73.91.29  
port 864 (repeated 9 times).

The rest is repeated fork/wait/nice stuff that will probably have a  
DoS effect on the system it's run on, but no privilege elevation...

Regards,

Andrew.

- --
************************************************************
Andrew Dawson
Operating Systems Group Manager
Information Systems
Education & Information Support Division
University College London
Gower Street
London WC1E 6BT
************************************************************

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