Leet Sheet
  • Leet Sheet
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      • Automated Web Technology Detection
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      • CORS Misconfigurations
      • DNS Rebinding
      • Open Redirect
      • Clickjacking
      • Cross Site Request Forgery (CSRF)
      • Session Fixation
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      • CSS Injection
      • HTML Injection
      • Phishing
    • Database Attacks
      • SQL Injection
      • Get a Shell From DB Connection
    • Server Attacks
      • Collisions
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        • Redis SSRF
      • Insecure Direct Object Reference
      • Timing-Based Side-Channel Attacks
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        • JWT Attacks
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      • Loose Comparisons
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      • Command Injection
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      • Server-Side Template Injection
      • XML External Entities Injection (XXE)
      • Server Misconfigurations
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      • Backdoors
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      • Reading Keystrokes from USB PCAP Data
  • Binary Exploitation
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    • Stack Smashing
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    • Time-of-Check to Time-of-Use (TOCTOU)
    • Shellcode
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    • Exploit Mitigations and Protections
    • Exploit Protection Bypassing
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    • Fuzzing
    • Automatic Exploitation
  • Physical Security
    • Mechanical Locks
    • Electronic Locks
    • Other Attacks
    • Destructive Entry
    • Elevator Attacks
  • Social Engineering
    • Phishing
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  • PHP
  • Deserialization via PHAR archive

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  1. Web App Hacking
  2. Server Attacks

Insecure Deserialization

PreviousUnrestricted File UploadNextCommand Injection

Last updated 3 years ago

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PHP

You can use phpggc to generate payloads.

Deserialization via PHAR archive

If you can upload a file that is a valid PHAR:

  • Phar file

  • Tar file

  • Zip file

  • Image polyglot

Then if that file is opened with the phar:// protocol, then insecure deserialization can occur.

So basically, to execute the attack, you need two things:

  1. Uploaded valid phar archive with malicious content

  2. Injection into a filesystem call, where you can specify the phar:// protocol and open up the archive

https://i.blackhat.com/us-18/Thu-August-9/us-18-Thomas-Its-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-Know-It.pdf
DeserializationHackTricks
GitHub - ambionics/phpggc: PHPGGC is a library of PHP unserialize() payloads along with a tool to generate them, from command line or programmatically.GitHub
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