Pentest List Wiki
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  • OFFENSIVE SECURITY
    • External Infrastructure
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    • Web Application
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        • Testing API Keys
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      • Exploitation
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          • Email Address Forms
          • AWS Cognito
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On this page
  • HTTP Header Issues
  • Headi
  • CRLF Vulnerabilities
  • CRLFuzz
  1. OFFENSIVE SECURITY
  2. Web Application
  3. Exploitation
  4. Injection Attacks

HTTP Headers

How to exploit HTTP Headers.

PreviousCross-Site ScriptingNextBypasses

Last updated 1 year ago

HTTP Header Issues

Headi

Headi is an automated HTTP header injection tool that will connect to a web server using various headers and monitor the responses for any potential weaknesses.

The following command will check for several header related issues on a URL.

headi -u URL

CRLF Vulnerabilities

CRLF injection occurs when it is possible to insert CR and LF characters into a web application using user-supplied input. This may force the server, application, or user into interpreting the CRLF as the end of a response and the beginning of another which may lead to HTTP response splitting.

CRLFuzz

CRLFuzz is a tool to scan for CRLF vulnerabilities.

The following command will check for CRLF issues on a URL.

./crlfuzz -u <URL>

https://github.com/mlcsec/headi
https://github.com/dwisiswant0/crlfuzz