Changes between Version 2 and Version 3 of PWNtcha


Ignore:
Timestamp:
04/26/2008 12:55:48 PM (17 years ago)
Author:
Sam Hocevar
Comment:

finished cloning the pwntcha page

Legend:

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  • PWNtcha

    v2 v3  
    3030|| vBulletin || [[Image(source:/pwntcha/testsuite/vbulletin/vbulletin_000.jpeg)]] [[Image(source:/pwntcha/testsuite/vbulletin/vbulletin_001.jpeg)]] || 100% || Vendor site: http://www.vbulletin.com/ [[BR]] Weaknesses: constant font, fixed glyph position, no rotation, no deformation, almost constant colours, weak perturbation. ||
    3131|| Xanga || [[Image(source:/pwntcha/testsuite/xanga2/xanga2_000.jpeg)]] [[Image(source:/pwntcha/testsuite/xanga2/xanga2_024.jpeg)]] || 49% || Weaknesses: fixed horizontal glyph position, no rotation, no deformation, constant colours, insufficient perturbation. ||
     32
     33== Other captchas and hard captchas ==
     34
     35These captchas can currently not be defeated by PWNtcha. Note however that this is not an acknowledgement of efficiency; for instance, [http://www.cs.berkeley.edu/~mori/gimpy/gimpy.html EZ-Gimpy can be easily defeated] by other projects. However, the Passport/Yahoo and CFXCaptcha captchas are probably going to last for a long time.
     36
     37|| Origin || Samples || Comments ||
     38|| Drupal || [[Image(source:/pwntcha/testsuite/drupal/drupal_024.png)]] [[Image(source:/pwntcha/testsuite/drupal/drupal_025.png)]] [[Image(source:/pwntcha/testsuite/drupal/drupal_089.png)]] || ||
     39|| Trencaspammers || [[Image(source:/pwntcha/testsuite/trencaspammers/trencaspammers_000.jpeg)]] [[Image(source:/pwntcha/testsuite/trencaspammers/trencaspammers_025.jpeg)]] [[Image(source:/pwntcha/testsuite/trencaspammers/trencaspammers_038.jpeg)]] || ||
     40|| Xanga (2) || [[Image(source:/pwntcha/testsuite/xanga2/xanga2_000.jpeg)]] [[Image(source:/pwntcha/testsuite/xanga2/xanga2_024.jpeg)]] || ||
     41|| 20six || [[Image(source:/pwntcha/testsuite/20six/20six_000.jpeg)]] [[Image(source:/pwntcha/testsuite/20six/20six_001.jpeg)]] || Extremely weak captcha, easily removed perturbation. ||
     42|| Authimage (3) || [[Image(source:/pwntcha/testsuite/authimage3/authimage3_014.png)]] [[Image(source:/pwntcha/testsuite/authimage3/authimage3_074.png)]] || A very good captcha, but not always human-solvable. ||
     43|| CFXCaptcha || [[Image(source:/pwntcha/testsuite/cfxcaptcha/cfxcaptcha_071.jpeg)]] || A very good captcha. ||
     44|| Clearscreen || [[Image(source:/pwntcha/testsuite/clearscreen/clearscreen_012.jpeg)]] [[Image(source:/pwntcha/testsuite/clearscreen/clearscreen_053.jpeg)]] || Weak perturbation, but interesting use of non-alphanumeric characters. ||
     45|| Cwazymail || [[Image(source:/pwntcha/testsuite/cwazymail/cwazymail_006.jpeg)]] [[Image(source:/pwntcha/testsuite/cwazymail/cwazymail_018.jpeg)]] || An excellent idea, but a critically buggy implementation. ||
     46|| EZ-Gimpy (eg. Yahoo! Briefcase) || [[Image(source:/pwntcha/testsuite/briefcase/briefcase_084.jpeg)]] || Already defeated by [http://www.cs.berkeley.edu/~mori/gimpy/gimpy.html another project]. ||
     47|| Hoke || [[Image(source:/pwntcha/testsuite/hoke/hoke_000.jpeg)]] [[Image(source:/pwntcha/testsuite/hoke/hoke_005.jpeg)]] || A very weak captcha. ||
     48|| .Mac || [[Image(source:/pwntcha/testsuite/dotmac/dotmac_018.jpeg)]] || A weak captcha that is not always human-solvable. ||
     49|| ICQ || [[Image(source:/pwntcha/testsuite/icq/icq_066.jpeg)]] [[Image(source:/pwntcha/testsuite/icq/icq_087.jpeg)]] || A pretty good captcha that uses a wide variety of backgrounds and fonts. ||
     50|| IMDb || [[Image(source:/pwntcha/testsuite/imdb/imdb_065.jpeg)]] [[Image(source:/pwntcha/testsuite/imdb/imdb_085.jpeg)]] || A very good captcha with a very well thought implementation, but a small dictionary. ||
     51|| MS MVPS || [[Image(source:/pwntcha/testsuite/msmvps/msmvps_098.jpeg)]] || Already defeated by [http://www.brains-n-brawn.com/default.aspx?vDir=aicaptcha another project]. ||
     52|| MVN Forum || [[Image(source:/pwntcha/testsuite/mvnforum/mvnforum_011.jpeg)]] || A pretty good captcha that uses a wide variety of backgrounds and fonts. ||
     53|| Passport || [[Image(source:/pwntcha/testsuite/passport/passport_000.jpeg)]] || A very good captcha, but not always human-solvable. ||
     54|| Pichan || [[Image(source:/pwntcha/testsuite/pichan/pichan_000.gif)]] [[Image(source:/pwntcha/testsuite/pichan/pichan_001.gif)]] [[Image(source:/pwntcha/testsuite/pichan/pichan_002.gif)]] [[Image(source:/pwntcha/testsuite/pichan/pichan_003.gif)]] || An apparently weak captcha. ||
     55|| Screenname || [[Image(source:/pwntcha/testsuite/screenname/screenname_005.jpeg)]] [[Image(source:/pwntcha/testsuite/screenname/screenname_054.jpeg)]] || A pretty good captcha that uses a wide variety of backgrounds, fonts and deformations. ||
     56|| Yahoo!  || [[Image(source:/pwntcha/testsuite/yahoo/yahoo_053.jpeg)]] || A very good captcha, but not always human-solvable. ||
     57
     58== Links ==
     59
     60 * [http://www.brains-n-brawn.com/default.aspx?vDir=aicaptcha Using AI to beat CAPTCHA and post comment spam]
     61 * [http://www.cs.berkeley.edu/~mori/gimpy/gimpy.html Breaking a Visual CAPTCHA]