Re: nmap (win32 4.60) bug and a fix

[Ionreflex <ionreflex () gmail com>]

Hi all,

I tried to reproduce the problem to no avail on an up-to-date WindeXP!
Without any option, this is what I get :

[snap]
C:\Program Files\Nmap>nmap 192.168.51.255

Starting Nmap 4.60 ( http://insecure.org ) at 2008-04-09 11:11 Est (heure
d'ÚtÚ)

Note: Host seems down. If it is really up, but blocking our ping probes, try
-PN

Nmap done: 1 IP address (0 hosts up) scanned in 0.610 seconds
[/snap]

Problem is the IP address - 192.168.51.255 - could be a valid unicast, it
all depends on the subnet mask...

Dudi, could you be more specific about the Win32 version and maybe the
command you try to pass ? I just want to make sure the problem is specific
to Nmap and not the host itself...

Tankiou,



Ion

2008/4/8, Fyodor <fyodor () insecure org>:
> On Mon, Mar 31, 2008 at 03:21:32PM +0300, Dudi I wrote:
> > Hi,
> >
> > I found a problem with nmap (4.60) when running on win32.
> > when i scan an ip address which is a broadcast address (like
> 192.169.1.255)
> > nmap gets into an infinite loop.
> >
> > its seems that the return code from getsockopt in this case is not
> handled
> > at all (a 'Strange read error ...' message is produced) and nmap gets
> into
> > an infinite loop.
> >
> > Attached is the diff file to fix this issue.
>
> Thanks Dudi.  I've applied this for the next Nmap release.
>
> -F
>
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