Re: Windows Command Processor CMD.EXE Buffer Overflow

[Arnaud Jacques <webmaster () securiteinfo com>]

Le Lundi 23 Octobre 2006 18:07, Tillmann Werner a écrit :
> Luis,
>
> > Tried it on Win2k3 SP1:
> > C:\Documents and Settings\Administrator>%COMSPEC% /K
> > "dir\\?\AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> > AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> > AA A AAAA
> > AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> > AA A AAAA
> > AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
> > System replied:
> > The filename or extension is too long.
> >
> >
> > YEah! Buffer Overflow Windows XP SP2
> >
> > I Hill debug this.
>
> What makes you think there is a buffer overflow? I'd say the 'dir' command
> reports an error for parameters beyond 256 chars. Just plain error
> handling, not a security issue, or am I missing something? 

/me agrees Tillmann
More info there :
http://support.microsoft.com/default.aspx?scid=kb;en-us;177665

-- 
Cordialement,

Arnaud Jacques
Consultant Sécurité

Securiteinfo.com
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