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vb.org Archive (https://vborg.vbsupport.ru/index.php)
-   vBulletin 3.8 Add-ons (https://vborg.vbsupport.ru/forumdisplay.php?f=235)
-   -   Miscellaneous Hacks - Enhanced Captcha Image Verification - stop bots from signing up!! (https://vborg.vbsupport.ru/showthread.php?t=132482)

steadicamop 05-20-2007 08:29 AM
Quote:
Originally Posted by SuprSurfr (Post 1247836)
Any chance on getting this working with 3.6.6?
Have you tried installing it - I'm still on 3.6.2 so will be upgrading soon, I will fix any compatibility problems as soon as I do.

Ian Montgomerie 05-20-2007 05:46 PM
Unfortunately, if this hack comes into common use then spambots will just defeat it by repeatedly trying to register and picking random images. Use 8 images and on average they'll succeed in about 4 tries. Captcha is immune to a simple "brute force" attack because there are too many combinations of words and letters that it can generate.

Right now this hack works because of security through obscurity - no spambots have been coded to deal with it.

extreme-mobile 05-20-2007 06:49 PM
i dont get any images showing just the words vbsecurereg or somethig any idea?

Jeff Bade 05-21-2007 05:27 PM
Reloaded everything and it is working now.

One problem I have is that the Name of the image it is asking for is not one of the 4 images.

I expanded it to 6 images and still no go.
I expanded it to 12 and most of the time the image is there.
But not all the time.

Anyone ever see that before?

Also the Red X images are there.
I think it is any non-image file in that directory which is causing this.
one time I was asked for the picture of index.
Which since I have index.html instead of .htaccess that makes sense.

FatalBreeze 05-22-2007 10:06 AM
My forum is based on Hebrew and not on English. I've seen in your code that the $question variable, is the one that stores the image to click and he gets its value by substr - by the image name. My question is, if i translate all the names of the images to hebrew, will it work?

EDIT:
I installed your hack, and it didn't work when i translated the titles of the pictures.
The result is that it displayed the 4 pictures, however it didn't say which picture to click as if the $question variable is empty.

FatalBreeze 05-23-2007 02:26 PM
you think i can fix it with two arrays: one in Engish and one in Hebrew, and work with preg_replace($english_array,$hebrew_array,$questio n); ?

steadicamop 05-27-2007 09:33 AM
Quote:
Originally Posted by Jeff Bade (Post 1252211)
Reloaded everything and it is working now.

One problem I have is that the Name of the image it is asking for is not one of the 4 images.

I expanded it to 6 images and still no go.
I expanded it to 12 and most of the time the image is there.
But not all the time.

Anyone ever see that before?

Also the Red X images are there.
I think it is any non-image file in that directory which is causing this.
one time I was asked for the picture of index.
Which since I have index.html instead of .htaccess that makes sense.
Sounds a little strange - I know other people are having issues with one or two images loading - I am looking into this and will do any necessary changes but I suspect it's a server thing - but will do testing to find this out.

If you have any other files than .htaccess, thumbs.db/Thumbs.db then they will show up, as those files are excluded - it is possible to exclude index.html by adding this in the show.php file:

PHP Code:
if ($entry != '.' && $entry != '..' && $entry != 'show.php' && $entry != '.htaccess' && $entry != 'Thumbs.db') 
If you want to add index.html to that change it to:

PHP Code:
if ($entry != '.' && $entry != '..' && $entry != 'show.php' && $entry != '.htaccess' && $entry != 'Thumbs.db' && $entry != 'index.html') 
For any other files just add
PHP Code:
&& $entry != 'whateverfilename.ext' 
to the end of the line before the closing bracket ")".

HTH

Jason

steadicamop 05-27-2007 09:35 AM
Quote:
Originally Posted by FatalBreeze (Post 1253257)
you think i can fix it with two arrays: one in Engish and one in Hebrew, and work with preg_replace($english_array,$hebrew_array,$questio n); ?
Give it a try - I'm not too clued up with preg_replace, but it can't hurt , if you have problems, let me know and I'll see what I can sort.

Cheers

Jason

MissKalunji 05-31-2007 12:32 PM
is there a way to add this to sendmessage.php?

Dragons76 05-31-2007 06:12 PM
I'm on VB 3.6.7

I have installed this hack, but i want to register, i have this message :

PHP Code:
Warning: dir() [function.dir]: Unable to access lesavoir/images/verification/ in /register.php(202) : eval()'d code on line 6
 
Warning: dir(lesavoir/images/verification/) [function.dir]: failed to open dir: No such file or directory in /register.php(202) : eval()'d code on line 6
 
Fatal error: Call to a member function read() on a non-object in /home/evox/lesavoir/httpdocs/lesavoir/register.php(202) : eval()'d code on line 7 
I have made the modif who is posted here : https://vborg.vbsupport.ru/showpost....&postcount=109

Any body can help me ?


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