full-disclosure - TCP/IP Stack Vulnerability

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Message-ID: <4263C2B5.2040700@kakou.org>
Date: Mon Apr 18 15:24:37 2005
From: kakou at kakou.org (kakou)
Subject: TCP/IP Stack Vulnerability

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Idem on a gentoo with 2.6 kernel (I have tested during 10min)

H. S. wrote:

>I have tested this against an unpatched W2K server and a RH 6 box, it
>doesnt slow down any of them; I was using X on the RH6 one and didn't
>notice any slowdowns or the supposed packet flow this should generate.
>
>
>>Fellows,
>>
>>Try this:
>>
>>Linux (Slackware 10):
>>
>>root@...fix:/# gcc -D LINUX storm.c -lpcap -o storm
>>
>>BSD systems:
>>
>>root@...fix:/# gcc storm.c -lpcap -o storm
>>
>>It should work, anyway Im sending a FreeBSD precompiled version of
>>this exploit and a the C source code as an attachment.
>>
>>bash-2.05b$ uname -a
>>FreeBSD darksun.undernet 5.3-RELEASE FreeBSD 5.3-RELEASE #1: Fri Dec
>>10 15:56:18 BRST 2004
>>root@...ksun.undernet:/usr/obj/usr/src/sys/GENERIC i386
>>
>>Best reguards,
>>
>>Diego Casati
>>
>>
>>On 4/18/05, Israel Lopez <israel@...osting.com> wrote:
>>

> 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
>

>>_______________________________________________
>>Full-Disclosure - We believe in it.
>>Charter: http://lists.grok.org.uk/full-disclosure-charter.html
>>Hosted and sponsored by Secunia - http://secunia.com/



>_______________________________________________
>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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