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MontréHack

Apprentissage et partage de connaissance sur la sécurité informatique en travaillant des problèmes appliqués.

Learning and sharing knowledge on IT security by solving technical challenges.

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Archives

By date

Hackfest CTF 2020 salt challenge (pwning), 17 March 2021
Teacher Hotline - Challenge de NorthSec 2020, 17 February 2021
Malware Analysis - Challenge du Hackfest 2020, 27 January 2021
h0h0h0day Online Challenge Exchange Special, 16 December 2020
DefCon 24 CTF Quals b3s23, 25 November 2020
NorthSec's Leaky Data Mining, 21 October 2020
Heaps of Fun, 16 September 2020
Introduction to Reverse Engineering Natively-Compiled OCaml Programs, 19 August 2020
NorthSec 2019 Giga.ctf, 22 July 2020
NorthSec's Ruby Deserialization, 17 June 2020
Vault pwning (exclusive), 20 May 2020
is-h0h0h0-lation special, 29 April 2020
HQL Injection, 18 March 2020
Rudimentary Rust reversing, 19 February 2020
Windows malware reversing, 15 January 2020
h0h0h0day Party and Challenge Xchange!, 18 December 2019
Do You Know Java?, 20 November 2019
Windows track of the NorthSec CTF 2019, 16 October 2019
Some Software Challenges of the NorthSec 2019 Badge, 18 September 2019
Golang Reversing Introduction, 21 August 2019
Anti-debugging, 17 July 2019
Intro to Linux x86 64 shellcoding, 19 June 2019
Breaking Real-World Crypto, 15 May 2019
Capture-The-Flag 101, 17 April 2019
Authentication-as-a-Service, 20 March 2019
ROP 101, 20 February 2019
Warp Pipes, 16 January 2019
King of the hill CTF, 21 November 2018
WTF.SQL, 17 October 2018
Flags from Space from NorthSec 2018, 19 September 2018
From the Internet to Your Laptop!, 15 August 2018
Web and privilege escalation challenges from NorthSec 2018, 18 July 2018
Exploiting Weaknesses of Order-Preserving Encryption, 20 June 2018
SQL Injection, 16 May 2018
Capture-The-Flag 101, 18 April 2018
Hackfest/iHack 2017 Web Challenges, 21 March 2018
Shopiflag: Web Exploitation, 21 February 2018
Battleship Reverse Engineering, 17 January 2018
Gentle Introduction to the NorthSec Badge, 18 December 2017
Mini-CTF OWASP, 20 November 2017
Windows Reverse Engineering - GoogleCTF Ascii Art, 16 October 2017
Exploitation ARM -- Badge NorthSec, 18 September 2017
Fuzzing with AFL and libFuzzer, 21 August 2017
Homework, 17 July 2017
Introduction to Heap Exploitation, 19 June 2017
Side channel & L3 CPU cache, 15 May 2017
NorthSec Captcha Bypass, 17 April 2017
Back To Basics, 20 March 2017
NES Reversing, 20 February 2017
Malicious Network Traffic, 16 January 2017
Malicious Documents, 19 December 2016
Keygen, 21 November 2016
Malware as a service, 19 September 2016
Trivia and Rebase as a Service, 15 August 2016
Pinghelper and BusinessCards, 18 July 2016
Strudel Maker from NorthSec 2016, 20 June 2016
DCIETS CS Games 2016 Qualifications Teaser, 16 May 2016
ROP It Like It's Hot!, 18 April 2016
Hash Length Extension attacks, 21 March 2016
Test d'intrusion Windows, 15 February 2016
Hackito Ergo Sum 2010 FPGA Challenge, 18 January 2016
h0h0h0day 2015 Party!, 20 December 2015
Hackfest 2015 CrackMe, 16 November 2015
ECCryptolocker, 19 October 2015
Got Malware?, 21 September 2015
XSS for grown-ups, 17 August 2015
Find The Key, 20 July 2015
Access Control, 15 June 2015
NorthSec 2015 Warm-up Party!, 18 May 2015
Network Forensics BKP Riverside 2015, 20 April 2015
adctf 2014 password-checker, 16 March 2015
Android Forensics CySCA2014, 16 February 2015
Microcorruption initiation, 19 January 2015
Brad Oberberg (CSAW Finals 2013), 15 December 2014
Secure webmail and lost data, 17 November 2014
Web Get $SHELL, 20 October 2014
NorthSec Smartcards, 15 September 2014
Social meetup / Rencontre sociale, 18 August 2014
NorthSec Thank You Mr ISP, 19 May 2014
NorthSec 2014 Pre-Party!, 21 April 2014
Boston Key Party Reverse Engineering, 17 March 2014
Hackfest 2013 Web Challenges, 17 February 2014
Plaid CTF 2012 Stegano, 20 January 2014
Silkstreet (CSAW Finals), 16 December 2013
Hackfest 2013 Retaliation, 18 November 2013
CSAW Quals Recap, 21 October 2013
Password Reset "Features", 16 September 2013
Web4Kids, 19 August 2013
Crypto-Oracle, 15 July 2013
Unix Exploitation, 17 June 2013
iOS Forensics and Network, 18 April 2013
Hackfest 2012 Web/Crypto, 13 March 2013
Hack.lu 2012 CTF binaries, 13 February 2013

By topic

Android

Android Forensics CySCA2014, 16 February 2015

Arm

Some Software Challenges of the NorthSec 2019 Badge, 18 September 2019
Gentle Introduction to the NorthSec Badge, 18 December 2017
Exploitation ARM -- Badge NorthSec, 18 September 2017

Bkp

Network Forensics BKP Riverside 2015, 20 April 2015

Code-review

NorthSec 2019 Giga.ctf, 22 July 2020

Crackme

Anti-debugging, 17 July 2019
Capture-The-Flag 101, 17 April 2019
Warp Pipes, 16 January 2019
Battleship Reverse Engineering, 17 January 2018
NES Reversing, 20 February 2017
Keygen, 21 November 2016
DCIETS CS Games 2016 Qualifications Teaser, 16 May 2016
Hackfest 2015 CrackMe, 16 November 2015
Find The Key, 20 July 2015
Access Control, 15 June 2015
adctf 2014 password-checker, 16 March 2015
Hackfest 2013 Retaliation, 18 November 2013
Hack.lu 2012 CTF binaries, 13 February 2013

Cryptography

Breaking Real-World Crypto, 15 May 2019
Exploiting Weaknesses of Order-Preserving Encryption, 20 June 2018
Windows Reverse Engineering - GoogleCTF Ascii Art, 16 October 2017
NorthSec Captcha Bypass, 17 April 2017
Strudel Maker from NorthSec 2016, 20 June 2016
Hash Length Extension attacks, 21 March 2016
ECCryptolocker, 19 October 2015
Secure webmail and lost data, 17 November 2014
NorthSec Smartcards, 15 September 2014
Password Reset "Features", 16 September 2013
Crypto-Oracle, 15 July 2013
Hackfest 2012 Web/Crypto, 13 March 2013

Exploit

Hackfest CTF 2020 salt challenge (pwning), 17 March 2021
Intro to Linux x86 64 shellcoding, 19 June 2019
ROP 101, 20 February 2019
Exploitation ARM -- Badge NorthSec, 18 September 2017
Fuzzing with AFL and libFuzzer, 21 August 2017
Introduction to Heap Exploitation, 19 June 2017
Side channel & L3 CPU cache, 15 May 2017
ROP It Like It's Hot!, 18 April 2016
Test d'intrusion Windows, 15 February 2016
Microcorruption initiation, 19 January 2015
Brad Oberberg (CSAW Finals 2013), 15 December 2014
Silkstreet (CSAW Finals), 16 December 2013
Hackfest 2013 Retaliation, 18 November 2013
CSAW Quals Recap, 21 October 2013
Unix Exploitation, 17 June 2013
Hack.lu 2012 CTF binaries, 13 February 2013

Exploitation

DefCon 24 CTF Quals b3s23, 25 November 2020
Heaps of Fun, 16 September 2020
Do You Know Java?, 20 November 2019
Capture-The-Flag 101, 17 April 2019
Web and privilege escalation challenges from NorthSec 2018, 18 July 2018
Capture-The-Flag 101, 18 April 2018

Forensic

Back To Basics, 20 March 2017
Network Forensics BKP Riverside 2015, 20 April 2015
Android Forensics CySCA2014, 16 February 2015
Secure webmail and lost data, 17 November 2014
NorthSec Thank You Mr ISP, 19 May 2014
iOS Forensics and Network, 18 April 2013

Forensics

Capture-The-Flag 101, 17 April 2019

Fuzzing

Fuzzing with AFL and libFuzzer, 21 August 2017

Hacking

Gentle Introduction to the NorthSec Badge, 18 December 2017

Hardware

Some Software Challenges of the NorthSec 2019 Badge, 18 September 2019
Gentle Introduction to the NorthSec Badge, 18 December 2017
Side channel & L3 CPU cache, 15 May 2017
Hackito Ergo Sum 2010 FPGA Challenge, 18 January 2016
NorthSec Smartcards, 15 September 2014

Hql

is-h0h0h0-lation special, 29 April 2020
HQL Injection, 18 March 2020

Injection

Vault pwning (exclusive), 20 May 2020
is-h0h0h0-lation special, 29 April 2020
HQL Injection, 18 March 2020

Ios

iOS Forensics and Network, 18 April 2013

Linux

Intro to Linux x86 64 shellcoding, 19 June 2019
ROP 101, 20 February 2019
Battleship Reverse Engineering, 17 January 2018
Mini-CTF OWASP, 20 November 2017
Introduction to Heap Exploitation, 19 June 2017
Keygen, 21 November 2016
Malware as a service, 19 September 2016
ROP It Like It's Hot!, 18 April 2016
Brad Oberberg (CSAW Finals 2013), 15 December 2014
Boston Key Party Reverse Engineering, 17 March 2014
Silkstreet (CSAW Finals), 16 December 2013
Hack.lu 2012 CTF binaries, 13 February 2013

Malware

Malware Analysis - Challenge du Hackfest 2020, 27 January 2021
Windows malware reversing, 15 January 2020
Malicious Network Traffic, 16 January 2017
Malicious Documents, 19 December 2016
Malware as a service, 19 September 2016
ECCryptolocker, 19 October 2015
Got Malware?, 21 September 2015

Network

NorthSec 2019 Giga.ctf, 22 July 2020
Capture-The-Flag 101, 17 April 2019
Capture-The-Flag 101, 18 April 2018
Windows Reverse Engineering - GoogleCTF Ascii Art, 16 October 2017
Back To Basics, 20 March 2017
Malicious Network Traffic, 16 January 2017
Network Forensics BKP Riverside 2015, 20 April 2015
Secure webmail and lost data, 17 November 2014
NorthSec Thank You Mr ISP, 19 May 2014
iOS Forensics and Network, 18 April 2013

Pentest

Windows track of the NorthSec CTF 2019, 16 October 2019
Authentication-as-a-Service, 20 March 2019
From the Internet to Your Laptop!, 15 August 2018
Test d'intrusion Windows, 15 February 2016

Privilege-escalation

Windows track of the NorthSec CTF 2019, 16 October 2019
Web and privilege escalation challenges from NorthSec 2018, 18 July 2018

Pwning

Vault pwning (exclusive), 20 May 2020

Reverse-engineering

Hackfest CTF 2020 salt challenge (pwning), 17 March 2021
Malware Analysis - Challenge du Hackfest 2020, 27 January 2021
Rudimentary Rust reversing, 19 February 2020
Windows malware reversing, 15 January 2020
Anti-debugging, 17 July 2019
Capture-The-Flag 101, 17 April 2019
Warp Pipes, 16 January 2019
Capture-The-Flag 101, 18 April 2018
Battleship Reverse Engineering, 17 January 2018
Windows Reverse Engineering - GoogleCTF Ascii Art, 16 October 2017
Exploitation ARM -- Badge NorthSec, 18 September 2017
Introduction to Heap Exploitation, 19 June 2017
NES Reversing, 20 February 2017
Malicious Network Traffic, 16 January 2017
Malicious Documents, 19 December 2016
Keygen, 21 November 2016
Malware as a service, 19 September 2016
DCIETS CS Games 2016 Qualifications Teaser, 16 May 2016
Hackito Ergo Sum 2010 FPGA Challenge, 18 January 2016
Hackfest 2015 CrackMe, 16 November 2015
Find The Key, 20 July 2015
Access Control, 15 June 2015
adctf 2014 password-checker, 16 March 2015
Microcorruption initiation, 19 January 2015
Boston Key Party Reverse Engineering, 17 March 2014

Reversing

Introduction to Reverse Engineering Natively-Compiled OCaml Programs, 19 August 2020
Golang Reversing Introduction, 21 August 2019

Rust

Rudimentary Rust reversing, 19 February 2020

Side-channel

Exploiting Weaknesses of Order-Preserving Encryption, 20 June 2018

Sql

WTF.SQL, 17 October 2018

Sql-injection

SQL Injection, 16 May 2018
Shopiflag: Web Exploitation, 21 February 2018
Mini-CTF OWASP, 20 November 2017
Homework, 17 July 2017
Hackfest 2013 Retaliation, 18 November 2013

Steganography

Back To Basics, 20 March 2017
Plaid CTF 2012 Stegano, 20 January 2014

Things-humans-do

h0h0h0day Online Challenge Exchange Special, 16 December 2020
h0h0h0day Party and Challenge Xchange!, 18 December 2019
h0h0h0day 2015 Party!, 20 December 2015
NorthSec 2015 Warm-up Party!, 18 May 2015
Social meetup / Rencontre sociale, 18 August 2014
NorthSec 2014 Pre-Party!, 21 April 2014

Tutorial

Some Software Challenges of the NorthSec 2019 Badge, 18 September 2019
Gentle Introduction to the NorthSec Badge, 18 December 2017
Mini-CTF OWASP, 20 November 2017
Introduction to Heap Exploitation, 19 June 2017
Side channel & L3 CPU cache, 15 May 2017
Back To Basics, 20 March 2017
DCIETS CS Games 2016 Qualifications Teaser, 16 May 2016

Web

Teacher Hotline - Challenge de NorthSec 2020, 17 February 2021
NorthSec's Leaky Data Mining, 21 October 2020
NorthSec 2019 Giga.ctf, 22 July 2020
NorthSec's Ruby Deserialization, 17 June 2020
Do You Know Java?, 20 November 2019
Golang Reversing Introduction, 21 August 2019
Breaking Real-World Crypto, 15 May 2019
Capture-The-Flag 101, 17 April 2019
Authentication-as-a-Service, 20 March 2019
King of the hill CTF, 21 November 2018
WTF.SQL, 17 October 2018
Flags from Space from NorthSec 2018, 19 September 2018
Web and privilege escalation challenges from NorthSec 2018, 18 July 2018
SQL Injection, 16 May 2018
Capture-The-Flag 101, 18 April 2018
Hackfest/iHack 2017 Web Challenges, 21 March 2018
Shopiflag: Web Exploitation, 21 February 2018
Mini-CTF OWASP, 20 November 2017
Homework, 17 July 2017
NorthSec Captcha Bypass, 17 April 2017
Back To Basics, 20 March 2017
Pinghelper and BusinessCards, 18 July 2016
Strudel Maker from NorthSec 2016, 20 June 2016
XSS for grown-ups, 17 August 2015
Secure webmail and lost data, 17 November 2014
Web Get $SHELL, 20 October 2014
NorthSec Thank You Mr ISP, 19 May 2014
Hackfest 2013 Web Challenges, 17 February 2014
Password Reset "Features", 16 September 2013
Web4Kids, 19 August 2013
Hackfest 2012 Web/Crypto, 13 March 2013

Windows

Malware Analysis - Challenge du Hackfest 2020, 27 January 2021
Windows malware reversing, 15 January 2020
Windows track of the NorthSec CTF 2019, 16 October 2019
From the Internet to Your Laptop!, 15 August 2018
Malicious Network Traffic, 16 January 2017
Malicious Documents, 19 December 2016
Malware as a service, 19 September 2016
Test d'intrusion Windows, 15 February 2016
Hackfest 2015 CrackMe, 16 November 2015

Xss

Shopiflag: Web Exploitation, 21 February 2018
Mini-CTF OWASP, 20 November 2017
XSS for grown-ups, 17 August 2015