Lexsek 
91
Position
9860
Points
298
Challenges
43
Compromissions
84%
App - Script
595 Points21 / 25
- o Bash - System 1
- o sudo - weak configuration
- o Bash - System 2
- x LaTeX - Input
- o Powershell - Command Injection
- o Bash - unquoted expression injection
- o Perl - Command injection
- o Powershell - SecureString
- o Bash - cron
- x LaTeX - Command execution
- o Python - input()
- x Bash - quoted expression injection
- o Bash - race condition
- o Powershell - Basic jail
- o Python - pickle
- o Shared Objects hijacking
- o SSH - Agent Hijacking
- x Python - format string
- o Python - PyJail 1
- o PHP - Jail
- o Python - PyJail 2
- o Python - Jail - Exec
- o Javascript - Jail
- o Python - Jail - Garbage collector
- o Bash - Restricted shells
28%
App - System
830 Points23 / 82
- o ELF x86 - Stack buffer overflow basic 1
- o ELF x86 - Stack buffer overflow basic 2
- o PE32 - Stack buffer overflow basic
- o ELF x86 - Format string bug basic 1
- o ELF x64 - Stack buffer overflow - basic
- o ELF x86 - Format string bug basic 2
- o ELF x86 - Race condition
- o ELF ARM - Stack buffer overflow - basic
- o ELF MIPS - Stack buffer overflow - No NX
- x ELF x64 - Double free
- o ELF x86 - Stack buffer overflow basic 3
- o ELF x86 - Use After Free - basic
- x ELF ARM - Stack Spraying
- x ELF x64 - Stack buffer overflow - PIE
- o ELF x86 - BSS buffer overflow
- o ELF x86 - Stack buffer overflow basic 4
- o ELF x86 - Stack buffer overflow basic 6
- x ELF x86 - Format String Bug Basic 3
- o PE32 - Advanced stack buffer overflow
- o ELF ARM - Basic ROP
- x ELF MIPS - Basic ROP
- x ELF x86 - Stack buffer overflow - C++ vtables
- x PE32+ Format string bug
- x ELF x64 - Logic bug
- x ELF x86 - Bug Hunting - Several issues
- o ELF x86 - Stack buffer and integer overflow
- x ELF x86 - Stack buffer overflow - ret2dl_resolve
- o ELF x86 - Stack buffer overflow basic 5
- o ELF x64 - Stack buffer overflow - advanced
- x ELF MIPS - Format String Glitch
- x ELF x64 - Heap Filling
- o ELF x86 - Information leakage with Stack Smashing Protector
- x ELF x64 - File Structure Hacking
- x ELF ARM - Race condition
- x ELF x64 - Browser exploit - Intro
- x ELF x64 - ret2dl_init
- x ELF x86 - Out of bounds attack - French Paradox
- o ELF x86 - Remote BSS buffer overflow
- o ELF x86 - Remote Format String bug
- x PE32+ Basic ROP
- x ELF x64 - Remote heap buffer overflow - fastbin
- x ELF x86 - Blind remote format string bug
- x LinKern ARM - vulnerable syscall
- x LinKern x86 - Buffer overflow basic 1
- x LinKern x86 - Null pointer dereference
- x LinKern x64 - Race condition
- x ELF ARM - Alphanumeric shellcode
- x ELF MIPS - URLEncoded Format String bug
- o ELF x86 - Hardened binary 1
- x ELF x86 - Hardened binary 2
- x ELF x86 - Hardened binary 3
- x ELF x86 - Hardened binary 4
- x LinKern MIPSel - Vulnerable ioctl
- x LinKern x64 - reentrant code
- x ELF ARM - Heap format string bug
- x ELF x64 - Sigreturn Oriented Programming
- x ELF ARM - Format String bug
- x ELF ARM - Use After Free
- x ELF x64 - FILE structure hijacking
- x ELF x64 - Heap feng-shui
- x ELF x64 - Off-by-one bug
- x ELF x86 - Hardened binary 5
- x LinKern ARM - Stack Overflow
- x LinKern x86 - basic ROP
- x ELF ARM - Heap Off-by-One
- x ELF x64 - Remote Heap buffer overflow 1
- x ELF x86 - Hardened binary 6
- x ELF x86 - Hardened binary 7
- x ELF x86 - Remote stack buffer overflow - Hardened
- x LinKern x64 - RowHammer
- x LinKern x64 - SLUB off-by-one
- x ELF ARM - Heap buffer overflow - Wilderness
- x ELF ARM - Heap Overflow
- x ELF x64 - Seccomp Whitelist
- x ELF x86 - Blind ROP
- x Linkern x64 - Memory exploration
- x WinKern x64 - Advanced stack buffer overflow - ROP
- x WinKern x64 - Use After Free
- x ELF x64 - Remote Heap buffer overflow 2
- x ELF x64 - Advanced Heap Exploitation - Heap Leakless & Fortified
- x ELF x64 - Blind ROP
- x ELF x64 - Browser exploit - BitString
72%
Cracking
1045 Points33 / 46
- o ELF x86 - 0 protection
- o ELF x86 - Basic
- o PE x86 - 0 protection
- o ELF C++ - 0 protection
- o PE DotNet - 0 protection
- o ELF MIPS - Basic Crackme
- o ELF x64 - Golang basic
- o ELF x86 - Fake Instructions
- o ELF x86 - Ptrace
- x WASM - Introduction
- o ELF ARM - Basic Crackme
- o ELF x64 - Basic KeygenMe
- x PE DotNet - Basic Anti-Debug
- x PE DotNet - Basic Crackme
- o PYC - ByteCode
- o ELF x86 - No software breakpoints
- x Lua - Bytecode
- o MachO x64 - keygenme or not
- o ELF ARM - crackme 1337
- o ELF x86 - CrackPass
- o ELF x86 - ExploitMe
- o ELF x86 - Random Crackme
- o GB - Basic GameBoy crackme
- o PDF - Javascript
- o PE x86 - Xor Madness
- o ELF ARM - Crypted
- o ELF x64 - Crackme automating
- o PE x86 - SEHVEH
- x Powershell DeObfuscation
- o APK - Anti-debug
- o ELF x64 - Nanomites - Introduction
- o ELF x86 - Anti-debug
- x PE DotNet - KeygenMe
- o PE x86 - AutoPE
- o ELF x86 - KeygenMe
- x WASM - Find the NPC
- x Bash - VM
- x ELF x64 - KeyGenMe
- o ELF x64 - Anti-debug and equations
- x ELF x64 - Nanomites
- o ELF x86 - Packed
- o PE x86 - RunPE
- o ELF x86 - VM
- x ELF x64 - Hidden Control Flow
- x Ringgit
- x White-Box Cryptography #2
52%
Cryptanalysis
605 Points29 / 56
- o Encoding - ASCII
- o Encoding - UU
- x Hash - DCC
- x Hash - DCC2
- x Hash - LM
- o Hash - Message Digest 5
- x Hash - NT
- o Hash - SHA-2
- o Shift cipher
- x CISCO - Salted Password
- o Pixel Madness
- o ELF64 - PID encryption
- o File - PKZIP
- o Monoalphabetic substitution - Caesar
- o Known plaintext - XOR
- o Code - Pseudo Random Number Generator
- o File - Insecure storage 1
- o Polyalphabetic substitution - Vigenère
- o System - Android lock pattern
- o Transposition - Rail Fence
- o AES - CBC - Bit-Flipping Attack
- o AES - ECB
- o LFSR - Known plaintext
- o RSA - Factorisation
- o RSA - Decipher Oracle
- o Service - Timing attack
- o Monoalphabetic substitution - Polybe
- x Twisted secret
- o Initialisation Vector
- o GEDEFU
- x OTP - Implementation error
- x RSA - Corrupted key 1
- o RSA - Continued fractions
- o RSA - Common modulus
- o Service - Hash length extension attack
- x AES - 4 Rounds
- o ECDSA - Introduction
- x RSA - Padding
- x RSA - Signature
- x AES128 - CTR
- o Discrete logarithm problem
- x RSA - Corrupted key 2
- x RSA - Corrupted key 3
- x RSA - Multiple recipients
- x AES - Fault attack #1
- x Enigma Machine
- x ECDHE
- x RSA - Lee cooper
- x Service - CBC Padding
- x Polyalphabetic substitution - One Time Pad
- x White-Box Cryptography
- x AES - Weaker variant
- x Hash - SHA-3
- x AES - Fault attack #2
- x AES-PMAC
- x ECDSA - Implementation error
100%
Forensic
975 Points25 / 25
- o Command & Control - level 2
- o Logs analysis - web attack
- o Command & Control - level 5
- o Find the cat
- o Ugly Duckling
- o Active Directory - GPO
- o Command & Control - level 3
- o DNS exfiltration
- o Command & Control - level 4
- o Job interview
- o Homemade keylogger
- o macOS - Keychain
- o Malicious Word macro
- o Ransomware Android
- o Insomni’Droid
- o Multi-devices
- o Root My Droid
- o Rootkit - Cold case
- o Command & Control - level 6
- o Find me
- o Second job interview
- o Find me again
- o Find me back
- o Zeus Bot
- o Try again
76%
Programming
355 Points13 / 17
- o IRC - Go back to college
- o IRC - Encoded string
- o IRC - The Roman’s wheel
- o IRC - Uncompress me
- o CAPTCHA me if you can
- o Ethereum - Tutoreum
- o Arithmetic progression
- o ELF x64 - Shellcoding - Sheep warmup
- o Ethereum - Takeover
- x ARM - Shellcoding - Egg hunter
- x Ethereum - NotSoPriv8
- o ELF x64 - Shellcoding - Polymorphism
- o Quick Response Code
- x WinKern x64 - shellcoding : token stealing
- x Ethereum - BadStack
- o ELF x64 - Sandbox shellcoding
- o ELF x86 - Shellcoding - Alphanumeric
80%
Realist
2040 Points33 / 41
- o It happens, sometimes
- o P0wn3d
- o The h@ckers l4b
- o Neonazi inside
- x Well-known
- o Bash/Awk - netstat parsing
- x Breaking Root-Me like it’s 2020
- o PyRat Auction
- o Root them
- o IPBX - call me maybe
- o Marabout
- o Root-We
- o Starbug Bounty
- o Ultra Upload
- x A bittersweet shellfony
- o Bash - System Disaster
- o Imagick
- o MALab
- x SSHocker
- o Web TV
- o SamBox v2
- o SamCMS
- o BBQ Factory - First Flirt
- o Django unchained
- x Texode
- x BBQ Factory - Back To The Grill
- o In Your Kubernetass
- o SamBox v1
- o SAP Pentest 007
- o Crypto Secure
- o Bozobe Hospital
- o Red Pills
- o SamBox v3
- o ARM FTP Box
- o SAP Pentest 000
- x Texode Back
- o Bluebox 2 - Pentest
- x Nodeful
- o Bluebox - Pentest
- o Highway to shell
- o SamBox v4
72%
Network
400 Points18 / 25
- o FTP - authentication
- o TELNET - authentication
- o ETHERNET - frame
- o Twitter authentication
- o Bluetooth - Unknown file
- o CISCO - password
- o DNS - zone transfert
- o IP - Time To Live
- o LDAP - null bind
- x POP - APOP
- x RF - AM Transmission
- x RF - FM Transmission
- o SIP - authentication
- o ETHERNET - Patched transmission
- o Global System Traffic for Mobile communication
- x HTTP - DNS Rebinding
- x RF - Key Fixed Code
- o SSL - HTTP exchange
- o Netfilter - common mistakes
- o SNMP - Authentification
- o Wired Equivalent Privacy
- o ICMP payload
- x RIPv1 - no authentication
- o XMPP - authentication
- x RF - Satellite transmission
95%
Steganography
385 Points19 / 20
- o Gunnm
- o Squared
- o Dot and next line
- o Steganomobile
- o Twitter Secret Messages
- o Some noise
- o George and Alfred
- x Poem from Space
- o Yellow dots
- o Audio stegano
- o We need to go deeper
- o Base Jumper
- o Hide and seek
- o PDF Object
- o Angecryption
- o Kitty spy
- o LSB - Uncle Scrooge
- o Pixel Indicator Technique
- o Pixel Value Differencing
- o Crypt-art
83%
Web - Client
705 Points20 / 24
- o HTML - disabled buttons
- o Javascript - Authentication
- o Javascript - Source
- o Javascript - Authentication 2
- o Javascript - Obfuscation 1
- o Javascript - Obfuscation 2
- o Javascript - Native code
- o Javascript - Webpack
- o Javascript - Obfuscation 3
- o XSS - Stored 1
- x CSP Bypass - Inline code
- o CSRF - 0 protection
- o Flash - Authentication
- x CSP Bypass - Dangling markup
- x CSP Bypass - JSONP
- o CSRF - token bypass
- o XSS - Reflected
- x CSP Bypass - Dangling markup 2
- o Javascript - Obfuscation 4
- o XSS - Stored 2
- o HTTP Response Splitting
- o Javascript - Obfuscation 5
- o XSS - Stored - filter bypass
- o XSS - DOM Based
91%
Web - Server
1925 Points64 / 70
- o HTML - Source code
- x HTTP - IP restriction bypass
- o HTTP - Open redirect
- o HTTP - User-agent
- o Weak password
- o PHP - Command injection
- o Backup file
- o HTTP - Directory indexing
- o HTTP - Headers
- o HTTP - POST
- o HTTP - Improper redirect
- o HTTP - Verb tampering
- o Install files
- o CRLF
- o File upload - Double extensions
- o File upload - MIME type
- o HTTP - Cookies
- o Insecure Code Management
- o JSON Web Token (JWT) - Introduction
- o Directory traversal
- o File upload - Null byte
- o JSON Web Token (JWT) - Weak secret
- o JWT - Revoked token
- o PHP - assert()
- o PHP - Filters
- o PHP - register globals
- o PHP - Remote Xdebug
- o File upload - ZIP
- o Command injection - Filter bypass
- o Java - Server-side Template Injection
- o JSON Web Token (JWT) - Public key
- o Local File Inclusion
- o Local File Inclusion - Double encoding
- x Node - Eval
- o PHP - Loose Comparison
- o PHP - preg_replace()
- o PHP - type juggling
- o Remote File Inclusion
- o SQL injection - Authentication
- o SQL injection - Authentication - GBK
- o SQL injection - String
- o XSLT - Code execution
- o LDAP injection - Authentication
- x Node - Serialize
- o NoSQL injection - Authentication
- o PHP - Path Truncation
- o PHP - Serialization
- o SQL injection - Numeric
- o SQL Injection - Routed
- o SQL Truncation
- o XML External Entity
- o XPath injection - Authentication
- x Yaml - Deserialization
- x GraphQL
- o Java - Spring Boot
- o Local File Inclusion - Wrappers
- o PHP - Eval
- o PHP - Unserialize overflow
- o SQL injection - Error
- o SQL injection - Insert
- o SQL injection - File reading
- o XPath injection - String
- o NoSQL injection - Blind
- o SQL injection - Time based
- x NodeJS - vm escape
- o Server Side Request Forgery
- o SQL injection - Blind
- o LDAP injection - Blind
- o XPath injection - Blind
- o SQL injection - Filter bypass