wordpress user enumeration fix
Now, by using the brute force approach, the attacker can enumerate usernames based on error messages. User Enumeration is a type of attack where nefarious parties can probe your website to discover your login name. Learn how your comment data is processed. We experienced multiple failed login attempts against WordPress. WebExample 1: msf auxiliary (wordpress_login_enum) > set RHOSTS 192.168.1.3-192.168.1.200 Example 2: msf auxiliary (wordpress_login_enum) > set RHOSTS 192.168.1.1/24 Example 3: msf auxiliary (wordpress_login_enum) > set RHOSTS file:/tmp/ip_list.txt Required Options Translate Stop User Enumeration into your language. The more thoroughly you incorporate tools like WPScan or even our own firewall into your site building process, the easier it will be to find and fix new vulnerabilities as they arise. To check user enumeration by error messages, plugin unified login error messages can help greatly. 3. Blocking WordPress User Enumeration on nginx - www.edwidget.name. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To block user-enumeration via functions.php, add the following code to your themes functions file: No editing is required for this to work, just copy/paste and done. We can make a simple HTTP request to https://wordpressexample.com/?author=1. Step 3: Open the functions.php file and copy-paste the following code to it and save it: Step 2: In the file manager, find the .htaccess file at the root of your server. Interesting that you are experiencing that the nag wont go away. Thereafter visit wp-content>themes. \W PCracker.exe --enum In this case, the program only requests the required information Brute Force Using program's presets . WebThe user-enumeration also assist the hackers in user account cracking. Change the 5 to however many users you want to enumerate. When Unified Login Error Messages WordPress plug-in is activated, the login error message is changed to ERROR: Invalid username/password combination. Regardless if the username submitted is correct or not, the authentication error message remains the same. To get that info, youll need to utilize the WPScan Vulnerability Database API. The .htaccess file should be edited only if you wish to block the request at the server level. 3. Everything else can stay the same. Stop User Enumeration is a security plugin designed to detect and prevent hackers scanning your site for user login names. hides many known but also more less known methods a to get the username. The error message does not show the user name when no such username exists. With WPScan, you can determine what usernames are discoverable from the outside. A simple solution I use in a .htaccess: We could then move onto attacking the password using the same process with a common password list. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Dont stop at vulnerable plugins and themes, though. I will try and fix ASAP, Just FYI that is now hopefully resolved in 1.4.2. Adding a code snippet to sites root .htaccess file. Step 2: Navigate to the WordPress installation directory. Stop User Enumeration is open source software. 1 WPintel Preventing WordPress Username Enumeration. Once you learn how to use WPScan, youll get a heads-up about issues like XSS vulns. Heres the most-common command to search for vulnerable plugins: Keep in mind that this will take a lot longer than the basic scan. An fail2ban config file, wordpress-userenum.conf is found in the plugin directory stop-user-enumeration/fail2ban/filter.d, An example jail.local is found in plugin directory stop-user-enumeration/fail2ban. Here are a few approaches Ive used, or would suggest, to combat this. Stop User Enumeration has been translated into 1 locale. Disable File Editing. When a web app leaks information about whether a username exists or doesnt exist, this is called user enumeration. Thank you for taking the time to feedback. No, but fail2ban will allow you to block IP addresses at your VPS / Dedicated server firewall that attempt user enumeration. Users have a unique user id that is used by the application in the database and for referencing the user account. And dont log the IP to a firewall, the major benefit! Does Russia stamp passports of foreign tourists while entering or exiting Russia? .htaccess code to block all author scans An authors ID isn't a big deal. So if you don't have a WordPress Scanner such as WPScan or Nmap NSE scripts you can try this bash trick. Re WebStop User Enumeration is a security plugin designed to detect and prevent hackers scanning your site for user login names. WP-Hardening is a one-stop solution to ensure recommended security measures on your WordPress. The .htaccess file should be edited only if you wish to block the request at the server level. Similarly, if the guessed username is wrong, the error message would specify that the username does not exist. This plugin does not support PHP 5.2. How to vertical center a TikZ node within a text line? It was a bug in my library I created to use across all my free plugins, and unfortunately when two plugins from me were loaded the dismiss didnt know which one it was. Copyright 2022 ASTRA IT, Inc. All Rights Reserved. http://example.com/author/admin/ Preventing Possible Attempt to Enumerate Users [SOLVED] In this article, we shall explain various ways in which user enumeration is done and how to stop user enumeration in WordPress. PHP 5.2 is very old and you really need to sort out your hosting, running version of software way past its supported end of life is a security risk. This works if the following conditions are met: WordPress permalinks are enabled. Here is a quick bash one liner that will cycle through as many users as you want and enumerate the usernames. If youve installed WPScan, always begin with an update. And dont log the IP to a firewall, the major benefit! It has been a few months since I installed the Stop User Enumeration plug-in. Make WordPress Core. This is the way it is designed. WPScan will use a few different techniques to do its own guessing: determining usernames based on the information available publicly on your site (i.e. [L,R=302]. This plugin wont do anything for logged in users, it only works when you are logged out. This plugin does the job! It is coded such that if you click on the I have left a review or Dont bother me the admin notice is dismissed and your action is aved and it should never appear again. If you do not specify any name details or nick name, the Display Name will default to your user login name. WebCreate a new admin username and delete the old one. http://example.com/author/user3/. wpscan url yourwebsite.com random-user-agent, Identifying vulnerable themes & plugins with WPScan, wpscan url yourwebsite.com -e vp api-token YOUR_TOKEN. WPCode is the best code snippets plugin After a few minutes, youll have a whole bunch of Interesting Findings that WPScan discovered from your sites code. When a web app In this type of attack, hackers use bots to try hundreds of combinations of usernames and passwords to barge into your WordPress site. Knowing the username is half the work done for a hacker in executing a brute-force. Thanks. The scope of this test is to verify if it is possible to collect a set of valid usernames by interacting with the authentication mechanism of the application. WordPress websites may reveal whether a username exists on system through the author query variable. Detect the url You remember all the times youve seen this exact scenario in zombie movies. wpscan url yourwebsite.com -e vt api-token YOUR_TOKEN. This includes the admin username (usually ID:1). Keep in mind that this will take a lot longer than the basic scan. If you are on a VPS or dedicated server, as the attack IP is logged, you can use (optional additional configuration) fail2ban to block the attack directly at your servers firewall, a very powerful solution for VPS owners to stop brute force attacks as well as DDoS attacks. if (preg_match('/author=([0-9]*)/i', $_SERVER['QUERY_STRING'])) die(); add_filter('redirect_canonical', 'shapeSpace_check_enum', 10, 2); function shapeSpace_check_enum($redirect, $request) {. Time will tell, but, for now, I am happy. How to Disable JSON REST API in WordPress This fixes the problem of username enumeration from the login page authentication error message inconsistency. This section describes how to install the plugin and get it working. This section describes how to install the plugin and get it working. Themes and xml feeds will include your user Display Name. 87. Thank you to the translators for their contributions. If youve noticed a large number of requests to /?author=X in your logs, then youre being hit by bots trying to do this. Lots of time. Themes and xml feeds will include your user Display Name. MOST of the other htaccess approaches our there use a 301 redirect, but I suggest sending them to a 403 Forbidden response as suggested by WASP standards. A .htaccess solution is insufficient for several reasons, but most published posts on the subject do not cover POST blocking, REST API blocking and inadvertently block admin users access. Fig. Should I be concerned and take any precautions? Heres a function I commonly use to do this: If your WordPress site is run on a server with Apache, then you can add the following rule to the .htaccess file in your installations root folder. Youll now insert your unique API token into a scan in order to access this specialized information. Stop User Enumeration is a security plugin designed to detect and prevent hackers scanning your site for user login names. The screenshot below shows the valid username message: The screenshot below shows the invalid username message: To automate the process, I created the following python script that will extract the valid WordPress usernames. Did you click on the link and it hasnt gone. * http://example.com/? While I use a strong password, its effectiveness is reduced when my user name is known. Step #2 Enumerating Users Now that we have Kali up and running By attempting to access its account, of course. Since WordPress 4.5 user data can also be obtained by API calls without logging in, this is a WordPress feature, but if you dont need it to get user data, this Get the ultimate WordPress security checklist, Monthly WordPress Security Roundup [July 2021], Monthly WordPress Security Roundup [June 2021], Monthly WordPress Security Roundup [May 2021]. Either using the dashboard Add Plugin feature to find, install and activate the plugin, or The following people have contributed to this plugin. If a comment is left by someone just giving a number that comment would be forbidden, as it is assumed a hack attempt, but the plugin has a bit of code that strips out numbers from comment author namesa1 Disable JSON REST API in WordPress with Code (Recommended) Method 2. No mind-numbing codes and cumbersome editing of files, just a flick of a button! 3. A HTTP response that matches "invalid password" indicates the username is valid. Free 4.5 (17) Perhaps the easiest method to find WordPress usernames is by going through the author archives. If you continue to use this site we assume that you accept this. If your site runs behind a firewall, you can try the same command with an additional option added to the end: While a basic scan will show you if a theme or plugin version is out of date, it wont tell you if there are specific vulnerabilities with that version. Since WordPress 4.5 user data can also be obtained by API calls without logging in, this is a WordPress feature, but if you dont need it to get user data, this As explained in greater depth here, user install and activate Unified Login Error Messages WordPress Heres how it works: 1. To enumerate usernames through the author archives method, simply append an integer (i.e. If you dont have access to install fail2ban ( e.g. Learning how to use WPScan starts with getting the latest version. Yes, but the default ones are fine for most cases. User Enumeration Running the command above will perform a basic scan of your site. 1. I added back the star because you listened. http://example.com/author/user2/ A common mistake is to install the plugin and test it, while still logged in as admin. In the end, the preventative measures you take to ensure the security of your WordPress sites upfront reduce the potential and potential impact of problems down the line. Download and the plugin from the download link The full location block would then look something like this: That should do it, using any of the above method you should stop those nasty user enumeration bots in their tracks. PHP 5.2 is very old and you really need to sort out your hosting, running version of software way past its supported end of life is a security risk. WebInstall a WordPress plugin such as Stop User Enumeration. Browse the code, check out the SVN repository, or subscribe to the development log by RSS. Code works in Python IDE but not in QGIS Python editor, Verb for "ceasing to like someone/something". Stop User Enumeration is open source software. One by one. We use cookies to ensure that we give you the best experience on our site. For instance, look at the image below. author names). The tool provides you a better understanding of your WordPress website and its vulnerabilities. But just as you sit down to enjoy an oversized can of chocolate pudding, a thought crosses your mind. Making statements based on opinion; back them up with references or personal experience. Wordpress JSON API returns normal site page in html. WebStop User Enumeration is a security plugin designed to detect and prevent hackers scanning your site for user login names. This post first appeared May 7, 2021 on the Sucuri blog. The plugin can stop the user id being leaked by the oEmbed API call. This package allows you to ban (from iptables) IP that fails to many time to connect SSH, or brute-force a port. One of the most common attacks on WordPress is brute-forcing. Didn't know I needed something like this until I did a little research. What happens if a manifested instant gets blinked? Well, a double-sized helping of good news: WPScan examines your site in the same way most attackers do: It enumerates details and checks them against its database of vulnerabilities and exploits. As always, if you have any questions let me know! Make sure your Display Name is always set NOT to your user name or it will be leaked in multiple places. 20072023 Kevinleary.net, LLC Kevinleary.net. If you installed on Mac with the Homebrew approach, use this instead: When using WPScan, your command will always start with wpscan, and then itll point the tool to your URL. Upload the entire stop-user-enumeration directory to your websites /wp-contents/plugins/stop-user-enumeration using a file manager or FTP Discover advanced WordPress hacking techniques, 2023 Hacker Target Pty Ltd - ACN 600827263 |, These three enumeration techniques are a very fast way to, Install Suricata on Ubuntu 18.04 in 5 minutes. Word to describe someone who is ignorant of societal problems, Enabling a user to revert a hacked change in their email, Dissolve neighboring polygons or group neighboring polygons in QGIS. I reduced a star because of a persistent nagging message earlier, but adding it again, because the developer addressed the issue. Themes and xml feeds will include your user Display Name. It's normal to have shown in publicly viewable source code, and it's easy to discover "hack" an id by simply making a query on your site /?author=x and manually mapping IDs to usernames. Stops user name enumeration and other type of user name and email leakages. Disabling JSON REST API in WordPress with Code (Recommended) We recommend using the WPCode plugin to disable JSON REST API in WordPress. Take the filename filename.aspx. Asking for help, clarification, or responding to other answers. Thanks And if the authors do not change their passwords regularly or do not use the recommended password practices, then know that you are at risk. Add new functionality and integrations to your site with thousands of plugins. User Enumeration is a type of attack where nefarious parties can probe your website to discover your login name. If you visit /wp-sitemap.xml on any WordPress site, you should see /wp-sitemap-users-1.xml as a link that will list all site users with their /author/username link. of websites and businesses worldwide. Helps secure your site against hacking attacks through detecting User Enumeration, WP Hardening - Fix Your WordPress Security. What Is User Enumeration? - Rapid7 1,2,3, etc.) View a portfolio of my work or request an estimate for your next project. Why does bunched up aluminum foil become so extremely hard to compress? Using a tool such as Burp Intruder in Burp Suite, we would load a list of possible usernames and cycle through HTTP POST requests to the WordPress login form examining the response.
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