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HellBound Hackers | Challenges | Timed Challenges

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New Time challenge


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Posted on 08-10-08 04:47
Finally, my time challenge has been released!
http://www.hellbo. . ./index.php
Enjoy. :)




Edited by on 08-10-08 04:48
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RE: New Time challenge


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Posted on 08-10-08 05:00
Thank you very much.


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RE: New Time challenge

K3174N 420
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Posted on 08-10-08 11:09
sweet, i wanna get these timed challenges done, but i need to setup apache 1st, well, i need to install linux 1st... ^^ on it Smile


Thanks Yours31f!
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RE: New Time challenge


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Posted on 08-10-08 16:05
Very very nice! Grin


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RE: New Time challenge


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Posted on 09-10-08 00:18
Definitely the hardest timed challenge yet, kudos to swartmumba for coming up with it.


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RE: New Time challenge


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Posted on 09-10-08 06:26
Wow!
That's awesome.

Where would you even start with a challenge like this?

I guess googling 'cracking barcodes' ??


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RE: New Time challenge


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Posted on 09-10-08 15:02
If any one has used Hack This Site, this reminds me of the Programming 2 for that site, which had a png that was all black with random white dots. The white dots needed to be measured and the pixel distances gave the decimal of ascii characters such as . and - which then was translated from morse to the answer... the challenge was to return the answer in 15 seconds knowing all these rules.

Here you have a png (downloads as php) and measure the black bars and non-black ones. Very similar to above, the rest is just taking that data and understanding how to crack bar codes, which is easy through google... took about 30 minutes to get the code for all that together but I'm stuck on how to post this back using python. This is the same problem I'm having on Timed 6.

Does anyone know how to get the info and keep that page open in python to post the answer back?
Anyone know how long the time limit is for this challenge because I can generate the answer quickly and can post with other tools if I have like 10 seconds?

I'm very happy to help anyone with the coding for detecting what's in the image but really need help posting back my answer...

Thanks,
zbert
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RE: New Time challenge


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Posted on 09-10-08 15:47
just rewrote a script for this zbert, so I can probably help you out.

For the record, python doesnt open the page, it makes a request, and it needs to make another one back.


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RE: New Time challenge

Mouzi
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Posted on 09-10-08 16:57
There are a lot of different barcode formats, what's this supposed to be? (EDIT: Nvm I can guess) And what does it mean by "valid" or "invalid?"


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Edited by Mouzi on 09-10-08 16:59
You would try to hack it anyways.
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RE: New Time challenge

spyware
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Posted on 09-10-08 16:59
Mouzi wrote:
There are a lot of different barcode formats, what's this supposed to be? And what does it mean by "valid" or "invalid?"


All part of the challenge I guess.



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Edited by spyware on 09-10-08 16:59
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RE: New Time challenge

Mouzi
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Posted on 09-10-08 17:00
Yeah I thought I could research on what's invalid or valid, but it didn't turn out that well.

EDIT: Done, but gives "Wrong answer" notification. Can I PM anyone with what I've got? Some of you have done it anyway.


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Edited by Mouzi on 09-10-08 18:37
You would try to hack it anyways.
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RE: New Time challenge


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Posted on 09-10-08 23:23
zbert wrote:
Anyone know how long the time limit is for this challenge because I can generate the answer quickly and can post with other tools if I have like 10 seconds?

If I wanted to tell you, then I would of done so in the challenge brief.
Just know that you are going to have to do a bit of optimization if your script takes 10 seconds. Shock

zbert wrote:
I'm very happy to help anyone with the coding for detecting what's in the image but really need help posting back my answer...

How did you manage to do the other time challenges if you can't even make a simple post request?

Mozi said:
Yeah I thought I could research on what's invalid or valid, but it didn't turn out that
well.

It is pretty logical if you know how the barcode works.




Edited by on 09-10-08 23:24
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RE: New Time challenge


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Posted on 10-10-08 00:59
zbert wrote:
I'm very happy to help anyone with the coding for detecting what's in the image but really need help posting back my answer...
------------
SwartMumba wrote:
How did you manage to do the other time challenges if you can't even make a simple post request?



Thanks for the input SwartMumba, great challenge by the way and thanks for the idea on time. To answer your question, it was my goal to do all of the Timed in Greasemonkey but timed 6 is the only one that won't take a ?GET in the url or has a form that you can do form[0].submit() to POST with. So I'm stuck learning how to POST with python because my Greasemonkey script which uses xmlhttpRequest to POST... altough I see the POST in tamper data, the page just ends up the same page with different font so it's.

Mozi said:
Yeah I thought I could research on what's invalid or valid, but it didn't turn out that
well.
---------
It is pretty logical if you know how the barcode works.

I don't want a spoiler but I can be PMed for a link to how to figure out the barcode pattern; or google it...

zbert
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RE: New Time challenge

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Posted on 10-10-08 01:12
Look in the page source .


U N Ⓡⓔⓧ_Ⓜⓤⓝⓓⓘ
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RE: New Time challenge

Mouzi
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Posted on 10-10-08 05:07
SwartMumba wrote:
Mozi said:
Yeah I thought I could research on what's invalid or valid, but it didn't turn out that
well.

It is pretty logical if you know how the barcode works.


Well I'm still not sure I have the right barcode format, but IF I have the right format then the validity means if the barcode forms valid numbers or not.

Anyway, like I said, I have a script done that can decode it and post it back, but apparently I'm still doing something wrong. I may be giving the answer in wrong format too. It'd help if I could PM someone with what I've got because I don't want to spoil here.

EDIT: The above post confirmed that I do have the right format :P
EDIT2: What the heck :D When I first time bet this challenge I got this:

Timed 7

SORRY! You already beat this

Points will not be added

But I guess it's beaten now.


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Edited by Mouzi on 10-10-08 10:54
You would try to hack it anyways.
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RE: New Time challenge


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Posted on 11-10-08 17:46
I think I've solved the challenge, but it keeps saying I ran out of time. The time it took was about 2-3 seconds from when I started it until I got the response from HBH. :/

What is the max time for this one or will it give the wrong message?


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RE: New Time challenge

Mouzi
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Posted on 11-10-08 18:04
I think it has plenty of time. I didn't bother making the script log in so I just made it write a HTML form and I manually clicked it and still got it in time :P But I don't know what the time is in seconds.


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Edited by Mouzi on 11-10-08 18:06
You would try to hack it anyways.
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RE: New Time challenge


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Posted on 11-10-08 18:33
Hmm, but I get the message "You ran out of time!". Guess that my answer is wrong and I got wrong message?


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Posted on 11-10-08 19:33
c4p_sl0ck wrote:
Hmm, but I get the message "You ran out of time!". Guess that my answer is wrong and I got wrong message?

Your code is not fast enough.
You ran out of time, means you ran out of time.
Seriously, ...



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RE: New Time challenge


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Posted on 11-10-08 19:50
My script executed in less than 0.06 seconds. With the time to get the image it took 0.16 and including the time it took to submit 1.66 seconds so I'm guessing that's not the problem. Or maybe I should get it, process it and submit it in less than a second. Shock On HBH!


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