Some Captcha's are far too easy

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Discussion of general topics related to the new release and its place in the world. Don't discuss new features, report bugs, ask for support, et cetera. Don't use this to spam for other boards or attack those boards!
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Cheater512
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Some Captcha's are far too easy

Post by Cheater512 »

I hate to be a pain in the butt but I've decided that some of phpBB 3's Captcha's are far too easy to crack.

I'll now go on a cracking spree (submitting my code to the Security Tracker of course) to prove it. :)

Stay Tuned.
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Highway of Life
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Re: Some Captcha's are far too easy

Post by Highway of Life »

That is a useless exercise.

If it's not computer readable, it's not human readable.

Rather than go on a cracking spree, it would be more beneficial to everyone to post a fix, or solve the problem.
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Cheater512
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Re: Some Captcha's are far too easy

Post by Cheater512 »

In order to post a effective fix I need to crack it first. :)
Once its cracked then the flaws can be spotted and fixed.
Xore
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Re: Some Captcha's are far too easy

Post by Xore »

let me know how this goes...
jimmygoon
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Re: Some Captcha's are far too easy

Post by jimmygoon »

Why not have some type of 3d rendering or some SIMPLE animation (floating) going on... to throw off the computers... even color shifting that would be hard to notice to people could throw off a pc...
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NNO-Stephen
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Re: Some Captcha's are far too easy

Post by NNO-Stephen »

maybe flash-based moving text?
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DPK
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Re: Some Captcha's are far too easy

Post by DPK »

How about a live webcam feed of a monkey holding up letters and random pictures of farm animals on 3x5 cards? :roll: :mrgreen: Sorry, I couldn't help it.
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NNO-Stephen
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Re: Some Captcha's are far too easy

Post by NNO-Stephen »

but the camera would be covered in doodoo in minutes. MINUTES!
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Yawnster
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Re: Some Captcha's are far too easy

Post by Yawnster »

jimmygoon wrote: Why not have some type of 3d rendering or some SIMPLE animation (floating) going on... to throw off the computers... even color shifting that would be hard to notice to people could throw off a pc...


Whats stopping the attacker from splitting that sort of image into frames and then simply reading a single one into an OCR Program? :P

From all I have read it seems that animated captchas are easier to break than static ones..

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Highway of Life
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Re: Some Captcha's are far too easy

Post by Highway of Life »

Some people just have to find a way around a good idea. ;) :P
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