How to prevent WordPress CSRF attack

How to prevent WordPress CSRF attack

Wordpress CSRF attack happens the same way as it happens on other sites. Wordpress provides some inbuilt tools to protect against CSRF. We will see how to make use of these tools while creating our own wordpress plugins. What is CSRF ? CSRF meansCross-Site Request Forgery (CSRF). It is a type of attack that occurs when a malicious web site, email, blog, instant message, or program causes a user's web browser to perform an unwanted action on a trusted site for which the user is currently authenticated. How does it happen ? For e.g. if you have a form on your website and you haven't protected it for CSRF attacks then a hacker can create a similar form elsewhere and trick one of your users to submit the form. This means the hacker can fill any values in the form. The damage depends on the functioning of the form. How to prevent CSRF In short, to prevent CSRF attack all we need to do is to check if...
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WordPress Custom Login page

Creating a Wordpress custom login page has 2 benefits Login page can be created based on your own theme The URL for the login page would be different to the Wordpress login URL. This is a good security practice provided you block the Wordpress default login page or redirect it to your custom login page. This does not mean that you need to create your own methods to store and retreive cookies by creating your own login function. Wordpress provides easy to use functions using which you can create own own plugin to create a wordpress custom login page. So here is the sample login form Wordpress custom login page - form [crayon-59c6742c12443344074549/] Here the form action submits to a page which does the authentication part. If you have created your own plugin the page would most likely be in your plugin folder. Here is the page which does the authentication and sets the cookie Wordpress custom login page - authentication [crayon-59c6742c1244b518079028/] wp_authenticate authenticates the user. If ok wp_set_auth_cookie sets the cookie for...
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WordPress XMLRPC attacks – How to prevent

What is wordpress XMLRPC RPC stands for Remote Procedure Call. Wordpress XMLRPC is a protocol which allows remote systems to communicate with Wordpress. The language to communicate is XML. With WordPress XMLRPC support, you can post to your WordPress blog using many popular Weblog Clients. XML-RPC functionality is turned on by default since WordPress 3.5. Brute Force Attack through wordpress XMLRPC Attackers user system.multicall method in XML-RPC to create hundreds of request combined in a single request to attack a system i.e. mostly to guess the username and password to the system. This is called as Brute Force Amplification Attacks  via WordPress XML-RPC How to prevent XMLRPC attack The most recommended way is to disable XML-RPC completely. To disable XML-RPC completely add following to your APACHE configuration file. [crayon-59c6742c126da430432429/] Some plugins in wordpress e.g. Jetpack is based on XML-RPC. In that case it is not possible to disable XML-RPC entirely. In that case you can disable system.multicall requests through your firewall Check server logs regularly and find IPs...
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Clickjacking – How to prevent on wordpress sites

What is clickjacking In simple words Clickjacking means users are tricked into clicking or keystroking on a different site/page making them think they are on their usual site. How can that be a problem from security point of view. Here is an example An example of Clickjacking Lets assume you own a website my_domain.com and you login to it everyday. If this site is not protected from clickjacking a hacker may be able to call this site in an iframe on some page hosted on his domain some_domain_owned_by_hacker.com Now the hacker also adds some javascript to this page which records users keystrokes. Through some means the hacker may trick you in clicking and opening this page. If you do not notice the domain name in the URL then you may feel that it is your own website and may even log in. Due to the keystroke recording script the hacker is then able to get your password. However you may feel that you always check the domain name before performing any transaction on a website and...
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WordPress Security – Configuration / Installation

1. Wordpress security at the Configuration and installation level This section explains measures to be taken for achieving wordpress security while installing and configuring wordpress. 1.1 Change default table prefix Many published WordPress-specific SQL-injection attacks make the assumption that the tableprefix is wp, the default. Changing this can block at least some SQL injection attacks. 1.2 Securing wp-config.php Are you aware that wp-config.php can be stored one directory level above the WordPress installation? This is quite a simple task. Also, make sure that only you (and the web server) can read this file (it generally means a 400 or 440 permission). This file contains quite sensitive information like password, database user etc so it's very imp to protect this file 1.3 Disable File Editing through Wordpress Dashboard The WordPress Dashboard by default allows administrators to edit PHP files, such as plugin and theme files. This is often the first tool an attacker will use if able to login, since it allows code execution. WordPress has a constant to disable editing...
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WordPress – How to disable dashboard access to subscribers

For security reasons you may wish to disable dashboard access to subscribers and allow access to only Admins, Editors and Authors. Below is a simple snippet of code to achieve this. Add below code in your theme's functions.php file [crayon-59c6742c12cec654240099/] The above code will redirect the user to your home page when the user tries to visit the Dashboard. However in some cases you may want a certain subscriber to access Dashboard. In that case I have created a capability called as dashboard_access. This capability can be assigned to the required user....
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WordPress how to assign only necessary capabilities to users

Quite often there is a requirement in wordpress to give certain users access to certain Administrative function e.g. manage widgets but you do not want to make them administrator for obvious reasons Here are some steps to achieve this requirement Create some role e.g. widgets_manager (based on the Author role i.e. same as Author role) Assign edit_theme_options capability to this newly created role [crayon-59c6742c12edc624359096/] Now just add below code to your functions.php [crayon-59c6742c12ee4863709044/]   ...
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