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ModSecurity 2.5

You're reading from   ModSecurity 2.5 Prevent web application hacking with this easy to use guide

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Product type Paperback
Published in Nov 2009
Publisher Packt
ISBN-13 9781847194749
Length 280 pages
Edition 1st Edition
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Toc

Table of Contents (17) Chapters Close

ModSecurity 2.5
Credits
About the Author
About the Reviewers
1. Preface
1. Installation and Configuration FREE CHAPTER 2. Writing Rules 3. Performance 4. Audit Logging 5. Virtual Patching 6. Blocking Common Attacks 7. Chroot Jails 8. REMO 9. Protecting a Web Application Directives and Variables Regular Expressions Index

Directory indexing


When a user requests an URL like http://www.example.com/, with no filename specification, Apache will look for the file specified by the DirectoryIndex setting (for example index.html). If this file is found, it is served to the user. If it doesn't exist, what happens next is determined by whether the Apache option called Indexes is enabled or not.

The Indexes option can be enabled for a directory in the following way:

<Directory /home/www/example>
Options +Indexes
</Directory>

If the Indexes option is active then Apache will generate a directory listing and display it to the user if the default DirectoryIndex file is not found. This listing contains the names of all files and sub-directories in the requested directory, and this can be a problem for several reasons:

  • Files that were never meant to be publicly disclosed can be requested by the user, even if they are not linked from anywhere

  • Names of subdirectories are displayed, and again this may lead to the user...

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