EH-Net

Ethical Hacking Discussions and Related Certifications => Programming => Topic started by: alan on December 01, 2011, 12:14:26 PM



Title: Want to be a spy?
Post by: alan on December 01, 2011, 12:14:26 PM
GCHQ are apparently looking to hire computer experts and have created a challenge. It doesn't look easy, but take a punt!

http://www.canyoucrackit.co.uk/



Title: Re: Want to be a spy?
Post by: eth3real on December 01, 2011, 12:52:11 PM
As a marketing technique, it is amazingly effective for their target audience. I'm so intrigued, I know I'm going to take a crack at it before time runs out.

Thanks for this, I love puzzles. ;D


Title: Re: Want to be a spy?
Post by: YuckTheFankees on December 01, 2011, 01:12:55 PM
what are we looking for? A word or sentence?


Title: Re: Want to be a spy?
Post by: hurtl0cker on December 01, 2011, 01:28:32 PM
One of my friend who deals with Algorithms and stuff cleared it, I am still scratching my head on it  ::)


Title: Re: Want to be a spy?
Post by: hayabusa on December 01, 2011, 03:28:07 PM
I haven't looked closely, but a prelim glance at the source of the page would indicate 16 characters or less...


Title: Re: Want to be a spy?
Post by: 3xban on December 02, 2011, 09:18:30 AM
**SPOILER ALERT*** ha, Mubix tweeted the following link
http://www.canyoucrackit.co.uk/soyoudidit.asp
#CodeBreakingIsHard

:p


Title: Re: Want to be a spy?
Post by: lorddicranius on December 02, 2011, 10:22:51 AM
**SPOILER ALERT*** ha, Mubix tweeted the following link
http://www.canyoucrackit.co.uk/soyoudidit.asp
#CodeBreakingIsHard

:p

lol Maybe get a job in their web security department to flush out logic flaws?


Title: Re: Want to be a spy?
Post by: millwalll on December 02, 2011, 11:41:13 AM
lol epic fail :P


Title: Re: Want to be a spy?
Post by: lorddicranius on December 04, 2011, 10:19:01 PM
**SPOILERS**

For those looking for the solution, there's videos here explaining it:

http://gchqchallenge.blogspot.com/2011/12/gchq-stage-1-commented-assembly-code-dr.html


Title: Re: Want to be a spy?
Post by: eth3real on December 05, 2011, 08:06:42 PM
Wow, those are some incredible videos. Much more involved than I had initially thought.


Title: Re: Want to be a spy?
Post by: alan on December 07, 2011, 01:50:06 AM
Are you sure this is the only answer? This article suggests there may be a hidden 4th challenge!

http://www.theregister.co.uk/2011/12/06/hidden_gchq_code_breaking_challenge/


Title: Re: Want to be a spy?
Post by: isgillen on December 14, 2011, 02:58:35 PM
all that for £31k a year....shame


Title: Re: Want to be a spy?
Post by: millwalll on December 15, 2011, 04:26:43 AM
did anyone from this site have a go and crack it ?


Title: Re: Want to be a spy?
Post by: lorddicranius on December 15, 2011, 11:06:46 AM
Quote
Okay, so apparently there is a buffer overflow in the GCHQ canyoucrackit binary challenge. http://pastie.org/2999151 anyone else catch this? :)

Source: https://twitter.com/#!/d1n/status/145765165361676288

There's all kinds of security challenges in this! haha


Title: Re: Want to be a spy?
Post by: pharmerjoe on March 26, 2012, 11:00:43 AM
You didn't even need to crack it, at the time, I just googled "site:canyoucrackit.co.uk"
And the soyoudidit page came up  ;D