full-disclosure - TCP/IP Stack Vulnerability

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Date: Mon Apr 18 04:39:52 2005
From: israel at ochosting.com (Israel Lopez)
Subject: TCP/IP Stack Vulnerability

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Hello,

Call me crazy, but when I copied the text out from Mr. Casati's email, I
had to edit all of the line wraps that (I believed) Thunderbird injected
into the email.  Takes a bit but you'll find them.

If anything I got 'farther' into compiling myself, needed to reflect
some changes to a new location of a pcap-bpf.h header.

[~/sandbox]# gcc -DLINUX -lpcap storm.c -o storm
storm.c: In function `PCapHandler':
storm.c:450: warning: initialization from incompatible pointer type
/tmp/ccvPmT8m.o(.text+0x3e8): In function `TCPCheckSum':
: undefined reference to `sizephdr'
collect2: ld returned 1 exit status
[~/sandbox]#

Anyone have sucess in testing this out in a sandbox environment?


Diego Casati wrote:
> Try this 
>  root@...fix:~/vortex# gcc -DLINUX storm.c -lpcap -o storm 
> 
> 
> 
> On 4/17/05, H. S. <security@...olutionsp.com> wrote:
> 
>>Hey,
>>
>>I am having two errors compiling this code. I want to test it on my LAN,
>>as I have a windows box and several linux ones.
>>
> 
> 
>>gcc -lpcap tcp-ack.c -o storm
>>tcp-ack.c: In function `DeletePacket':
>>tcp-ack.c:350: error: syntax error before "CurrentPacket"
>>tcp-ack.c: In function `FindPacket':
>>tcp-ack.c:366: error: invalid lvalue in assignment
>>tcp-ack.c: In function `PCapHandler':
>>tcp-ack.c:453: warning: initialization from incompatible pointer type
>>
>>I'm trying to compile on a FreeBSD 5.2.1-RELEASE system.
>>
>>line 350 reads:
>>                       CurrentPacket->NextPacket
>>CurrentPacket->NextPacket->NextPacket;
>>
>>line 366 reads:
>>           if (Source == Packet->Source && Destination
>>=Packet->Destination && SourcePort == Packet->SourcePort &&
>>DestinationPort == Packet->DestinationPort)
>>
>>What could be the problem?
>>
>>Kind Regards
>>
>>
> 
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> Hosted and sponsored by Secunia - http://secunia.com/

- --
=========================
Israel Lopez
Lead Network Administrator
OCHosting Inc.
Office: (949) 388-8637 x.106
E-Mail: israel@...osting.com
PGPKey: 0xFE8F03DD
Keyserver: pgp.mit.edu

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