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ModSecurity – Open Source Web Application Firewall

Posted · Category: GPL License, Security

Open Source Web Application Firewall

With over 70% of all attacks now carried out over the web application level, organisations need every help they can get in making their systems secure. Web application firewalls are deployed to establish an external security layer that increases security, detects, and prevents attacks before they reach web applications.

Web servers are typically well-equipped to log traffic in a form useful for marketing analyses, but fall short when it comes to logging of traffic to web applications. In particular, most are not capable of logging the request bodies. ModSecurity makes full HTTP transaction logging possible, allowing complete requests and responses to be logged. Its logging facilities also allow fine-grained decisions to be made about exactly what is logged and when, ensure only the relevant data is recorded.

In addition to providing logging facilities, ModSecurity can monitor the HTTP traffic in real time in order to detect attacks. In this case ModSecurity operates as a web intrusion detection tool, allowing you to react to suspicious events that take place at your web systems.

ModSecurity v2.5 is now available. Some of the new features include: parallel text matching, Geo IP resolution, credit card number detection, support for content injection, automated rule updates, scripting, as well as many others.

Requirements: –
Demo: http://www.modsecurity.org
License: GPL License

reCAPTCHA Prevent Spam and Help Digitize Books

Posted · Category: License Free, Security

A CAPTCHA is a program that can tell whether its user is a human or a computer. You’ve probably seen them — colorful images with distorted text at the bottom of Web registration forms. CAPTCHAs are used by many websites to prevent abuse from “bots,” or automated programs usually written to generate spam.

reCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA.

Each new word that cannot be read correctly by OCR is given to a user in conjunction with another word for which the answer is already known. The user is then asked to read both words. If they solve the one for which the answer is known, the system assumes their answer is correct for the new one. By using reCAPTCHA, you can protect your site from abuse and help digitize books at the same time.


Requirements: No Requirements
Demo: http://recaptcha.net/
License: License Free

Google Blog – Quick Security Checklist for Webmasters

Posted · Category: Information, Security

Google Webmaster Central Blog published Quick security checklist for webmasters. They encourage webmasters to “please try the following at home,” this is by no means an exhaustive list for your website’s security. The list is useful, but they recommend that you conduct more thorough research as well.

Nathan Johns said
“In recent months, there’s been a noticeable increase in the number of compromised websites around the web. One explanation is that people are resorting to hacking sites in order to distribute malware or attempt to spam search results. Regardless of the reason, it’s a great time for all of us to review helpful webmaster security tips.”

Requirements: No Requirements
Source: http://googlewebmastercentral.blogspot.com/2007/09/quick-security…
License: N/A

aSSL – Open Source Ajax Secure Service Layer

Posted · Category: MIT License, Security

assl.gif aSSL is a library distributed under MIT License thats implements a technology similar to SSL without HTTPS. aSSL enables the client to negotiate a secret random 128-bit key with the server using the RSA algorithm. Once the connection has been established, the data will be sent and received using AES algorithm. aSSL is composed of some Javascript files and a server side component. A pure Javascript (ASP) server component is currently available. They will do a porting for the main web languages (PHP, Java, Perl, Python, TKL, etc.) as soon as possible once the aSSL has passed the beta phase.

Requirements: ASP Server
Demo: http://assl.sullof.com/assl/asp_example/example1.asp
License: MIT License

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