# 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 : 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...
  • 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...
  • WeeChat(connect to an IRC server)
    WeeChat(connect to an IRC server)
    WeeChat is an IRC client for Linux. WeeChat은 λ¦¬λˆ…μŠ€μš© IRC ν΄λΌμ΄μ–ΈνŠΈ. 1. Feature  νŠΉμ§• 01. It supports Unicode. μœ λ‹ˆμ½”λ“œ 지원. 2. ...
  • 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 ....
  • JtR(password cracker)
    JtR(password cracker)
    The software that cracks an encrypted password. μ•”ν˜Έν™”λœ νŒ¨μŠ€μ›Œλ“œλ₯Ό ν•΄λ…ν•˜λŠ” μ†Œν”„νŠΈμ›¨μ–΄. 1. Feature  νŠΉμ§• ❑ Portable is available. λ¬΄μ„€μΉ˜ μ‚¬μš© κ°€λŠ₯. ❑ Th...
  • Root me write-up : ELF x64 - Stack buffer overflow - basic
    Root me write-up : ELF x64 - Stack buffer overflow - basic
    To comply with the write-up rule of root-me.org, in this write-up, I just talk about some hints related this challenge. Here is no solution...
  • 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. ...
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