Web - Server Web - Server

Discover the mechanisms, protocols and technologies used on the Internet and learn to abuse them!

These challenges are designed to train users on HTML, HTTP and other server side mechanisms. The following series of challenges will cultivate a better understanding of techniques such as : Basic workings of multiple authentication mechanisms, handling form data, inner workings of web applications, etc. ...

Prerequisites:
– Understand HTML.
– Understand the HTTP protocol.
– Ability to manipulate a web browser.

challenges 97 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty ↓↑  Difficulty Author Note  Notation Solution Date
pas_valide HTML - Source code 48% 175252 5 g0uZ 6 3 October 2006
pas_valide HTTP - Open redirect 19% 69130 10 Swissky 10 2 August 2017
pas_valide HTTP - User-agent 24% 86795 10 g0uZ 10 3 October 2006
pas_valide Weak password 31% 113281 10 g0uZ 7 3 October 2006
pas_valide PHP - Command injection 19% 69254 10 sambecks 10 20 September 2017
pas_valide HTTP - IP restriction bypass 9% 31740 10 Cyrhades 8 23 March 2021
pas_valide Install files 13% 45090 15 g0uZ 7 7 October 2006
pas_valide File upload - MIME type 8% 29100 20 g0uZ 10 26 December 2012
pas_valide File upload - Double extensions 10% 36086 20 g0uZ 10 24 December 2012
pas_valide Nginx - Root Location Misconfiguration 1% 1553 15 .Yo0x 1 27 September 2024
pas_valide Nginx - Alias Misconfiguration 1% 3267 15 .Yo0x 3 27 September 2024
pas_valide CRLF 9% 32593 20 g0uZ 7 31 July 2011
pas_valide HTTP - Verb tampering 13% 47753 15 g0uZ 10 3 February 2011
pas_valide HTTP - POST 14% 51358 15 Th1b4ud 10 14 August 2018
pas_valide HTTP - Headers 16% 56416 15 Arod 9 11 January 2015
pas_valide HTTP - Directory indexing 22% 79621 15 g0uZ 7 7 October 2006
pas_valide Backup file 16% 55750 15 g0uZ 10 27 February 2011
pas_valide API - Broken Access 2% 5985 15 Nishacid , Mika 4 18 January 2024
pas_valide HTTP - Improper redirect 12% 43940 15 Arod 10 26 November 2014
pas_valide PHP - Serialization 2% 6973 35 Arod 3 3 February 2014
pas_valide XPath injection - Authentication 2% 6848 35 g0uZ 6 27 December 2012
pas_valide XML External Entity 2% 5856 35 sambecks 2 20 October 2014
pas_valide SQL Truncation 2% 7040 35 Geluchat 2 1 May 2015
pas_valide SQL Injection - Routed 2% 5653 35 soka 5 24 December 2016
pas_valide SQL injection - Numeric 5% 15742 35 g0uZ 7 24 December 2012