# Cybersecurity Guide


  • HASH
  • [CRC-32] [MD5] [SHA-1] [SHA-256] [SHA-512]
  • ENCODING / DECODING
  • [Base16(enc)] [Base16(dec)] [Base64(enc)] [Base64(dec)] [URL(enc)] [URL(enc)(+ASCII)] [URL(dec)] [HTML_entity(enc)] [HTML_entity(dec)]
  • CONVERSION
  • [Hex] [Dec] [Oct] [Bin]

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  • πŸ”¨ ONLINE TOOL
  • 🚩 WRITE-UP
  • 🍰 CODE
  • πŸ“¦ OTHER
    •  🏹 Tool
    •  πŸ§ͺ Simulation
    •  πŸ“„ Reference
    •  πŸ’Ύ Misc
  • Root me write-up : Logs analysis - web attack
    Root me write-up : Logs analysis - web attack
    This is a quiz to find flags in web server logs. The web server log contains the base64 encoding value in the order variable, and...
  • Root me write-up : sudo - weak configuration
    Root me write-up : sudo - weak configuration
    Wishing to simplify the task by not modifying rights, the administrator has not thought about the side effects... The "~/ch1...
  • pwnable.kr ascii_easy write-up
    pwnable.kr ascii_easy write-up
    To comply with the rule 3, I masked some things that is needed to solve this challenge. I thought that I may needs ROP, not RTL. ...
  • Root me write-up : Perl - Command injection
    Root me write-up : Perl - Command injection
    Retrieve the password stored in .passwd. There are .passwd, ch7.pl and setuid-wrapper files. This challenge seems to read the ....
  • HUMINT, TECHINT, SIGINT, IMINT, MASINT, OSINT
    ❑ HUMINT(HUMan INTelligence) : Collecting information using people. White/Black agent. ❑ TECHINT(TECHnical INTelligence) : Collecting...
  • Cygwin(Linux feeling on Windows)
    Cygwin(Linux feeling on Windows)
    The software that configures a Linux-like environment on Windows. μœˆλ„μš°μ—μ„œ λ¦¬λˆ…μŠ€μ™€ λΉ„μŠ·ν•œ ν™˜κ²½μ„ κ΅¬μ„±ν•˜λŠ” μ†Œν”„νŠΈμ›¨μ–΄. 1. Feature  νŠΉμ§• 01.It enables usi...
  • Root me write-up : Bash - System 2
    Root me write-up : Bash - System 2
    It looks like that it can be solved by changing the "ls" command to "cat". However, since there is no "-l" ...
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