Re: [Full-disclosure] Windows Command Processor CMD.EXE Buffer Overflow

[offset@xxxxxxxxxxxx]

This works on Windows SP2 : The system doesn't reply "The filename or extension 
is too long."
but cmd crash.

----- Tillmann Werner <tillmann.werner@xxxxxx> wrote:
> Luis,
> 
> > Tried it on Win2k3 SP1:
> > C:\Documents and Settings\Administrator>%COMSPEC% /K
> > "dir\\?\AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> >
> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> >A AAAA
> >
> AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
> >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?
> 
> Tillmann
> 
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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/