Re: GSoC 2012 Project - Vulnerability and exploitation specialist

[David Fifield <david () bamsoftware com>]

On Fri, Mar 23, 2012 at 10:36:06PM +0100, Aleksandar Nikolic wrote:
> Hi,
>
>    I am Aleksandar Nikolic, a final year Computer Science student at
>    Faculty Of Technical Sciences, University of Novi Sad. I have
>    certain experience in vulnerability and exploit research, and would
>    like to apply for a position of a Script developer- Vulnerability
>    and exploitation specialist in the following Google Summer Of Code.
>    Since student applications haven't started yet I won't talk a lot
>    about myself now, but guidelines from Google suggest to try to
>    contact the community and possibly discuss the project.
>
> In an attempt to prepare for the application and to get familiar with
> nmap's scripting engine I wrote a script to test for recent Windows
> RDP vulnerability. Everybody is talking about the vulnerability and
> until today I was unaware of a way to check if a machine is vulnerable
> or not without causing the BSoD. My script is based on work by sleepya
> . His tests are crafted in a way that would avoid triggering the BSoD.
> Please see the attached code for details.
>
> Of course, this script would need to be thoroughly tested, but my
> tests have shown that it works, at least on Windows XP. Also, I've
> just started playing with NSE and wanted to share this with you since
> it is a hot topic currently. Please let me know if I should make some
> improvements. I hope that you will find it useful.

Thanks Aleksandar. I'm looking forward to reading your application.
About the script, I agree that it's mysterious to have so many
unexplained hex codes in there. We like to document those whenever
possible, otherwise no one will be able to understand and modify the
script later.

What interests me is how this script works without BSOD when other
techniques don't. What makes the difference? That's what I would like to
see in documentation comments.

> On topic, do you have any suggestions for me regarding the application
> for this position?

For script writers, we like to see knowledge of Lua and networking, but
especially ideas for the kinds of scripts you intend to write that are a
good match for your skills.

David Fifield
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