https://github.com/simonkowallik/f5-irules

My F5 BIG-IP iRules
https://github.com/simonkowallik/f5-irules

bigip f5 irules

Last synced: 8 months ago
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My F5 BIG-IP iRules

• Host: GitHub
• URL: https://github.com/simonkowallik/f5-irules
• Owner: simonkowallik
• Created: 2012-03-03T23:58:17.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2020-05-18T16:59:29.000Z (over 5 years ago)
• Last Synced: 2025-02-24T03:57:20.470Z (8 months ago)
• Topics: bigip, f5, irules
• Homepage:
• Size: 5.86 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README

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README

          
Author: Simon Kowallik 

Description

===========

This is my collection of iRules for F5 BIGIP Devices.

More Details are available on http://devcentral.f5.com

iRules

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* HashDoS_Defender - Advanced Protection against hash collision attacks (for ASP.NET, PHP and Java/JSP) *

This iRule protects against Hash collision "HashDoS" Attacks through HTTP POST Parameters. If you can't limit your HTTP POST size and/or Parameter count for your vulnerable Web Application, this iRule is for you!

The following Hash functions are protected:

1. djb x33a used by PHP5

2. djb x33x used by ASP.NET and PHP4

3. "x31s" (similar to x33a) used by Java/JSP like Tomcat, Geronimo or Oracle Glassfish 

Link: https://devcentral.f5.com/wiki/iRules.HashDoS-Defender-Advanced-Protection-against-hash-collision-attacks-ASP-NET-PHP-Java-JSP.ashx?NS=iRules