Learn Linux BackTrack

What is Google hacking?
Google hacking is a computer hacking technique that uses Google Search and other Google applications to find security holes in the configuration and computer code that websites use.
Basics

Google hacking involves using advanced operators in the Google search engine to locate specific strings of text within search results. Some of the more popular examples are finding specific versions of vulnerable Web applications. The following search query would locate all web pages that have that particular text contained within them. It is normal for default installations of applications to include their running version in every page they serve, e.g., "Powered by XOOPS 2.2.3 Final".

The following search query will locate all websites that have the words "admbook" and "version" in the title of the website. It also checks to ensure that the web page being accessed is a PHP file.

How to check for Google hacking vulnerabilitiesThe easiest way to check whether your web site & applications have Google hacking vulnerabilities, is to use a Web Vulnerability Scanner. A Web Vulnerability Scanner scans your entire website and automatically checks for pages that are identified by Google hacking queries. (Note: Your web vulnerability scanner must be able to launch Google hacking queries).
The Acunetix Web Vulnerability Scanner scans for SQL injection, Cross site scripting and many more vulnerabilities. For more information & a trial download click here.
Preventing Google hacking attacksRemove all pages identified by Google hacking queries
Check if your website is vulnerable to attack with Acunetix Web Vulnerability Scanner
Acunetix Web Vulnerability Scanner ensures website security by automatically checking for SQL injection, Cross site scripting and other vulnerabilities. It checks password strength on authentication pages and automatically audits shopping carts, forms, dynamic content and other web applications. As the scan is being completed, the software produces detailed reports that pinpoint where vulnerabilities exist. Take a product tour or download the evaluation version today!
Scanning for XSS vulnerabilities with Acunetix WVS Free Edition!To check whether your website has cross site scripting vulnerabilities, download the Free Edition from http://www.acunetix.com/cross-site-scripting/scanner.htm. This version will scan any website / web application for XSS vulnerabilities and it will also reveal all the essential information related to it, such as the vulnerability location and remediation techniques. Scanning for XSS is normally a quick exercise (depending on the size of the web-site).