WordPress Security - WordPress Meetup Copenhagen 2013

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Transcript of WordPress Security - WordPress Meetup Copenhagen 2013

  • 1.WordPress Security Copenhagen September 2013

2. Thor Kristiansen Self-employed WP-Developer and Business Consultant Long time meditator First WP Blog: The Pure View: http://pureview.dk 200-400 visitors a day, 90% traffic is US, non-profit Former Sr. Business Analyst & QA Mgr. at Dell Portfolio website: http://shivaweb.dk 3. Security Stats Example Hack Top Security Tips Recommended Plugins & Services Resources 4. Security Stats 5. 700+ million websites May 2012 (Netcraft) 300 million websites in 2011 (Pingdom) 10+ billion indexed pages (WorldWebSize) Projected: 1 Billion websites by 2013 2 Billion websites by 2015 0 500 1000 1500 2000 2500 2011 2012 2013 2015 Websites Websites 6. WordPress Stats 73+ Million WordPress powered websites 18.9% of all websites are running WordPress 22 out of every 100 new domains in the U.S. launches with WordPress Projected 300-500 Million WordPress sites by 2015 7. Web Malware Stats 403 Million unique variants of malware in 2011 (Symantec) 140% growth since 2010 81% increase in malicious web-based attacks between 2010 - 2011 8. In Summary Be Scared! 9. Hack Example 10. Link Injection Hacker bots look for known exploits (SQL Injection, folder permissions, etc) This allows them to insert spam files/links into your WordPress Themes, plugins, and core files. 11. Link Injection 375 spam links per page, only shown to search engines 12. Securing WordPress 13. 1 Update Update Update Keep WordPress Updated! Minor WordPress versions ( ie 3.5.x ) do NOT add new features. They contain bug fixes and security patches 14. 1 Update Update Update Update Those Plugins! The plugin Changelog tab makes it very easy to view what has changed in a new plugin version 15. 1. Update Update Update NO EXCUSES! UPDATE! 16. 2.Do you login with username admin? 17. 3. Delete the Admin user account UPDATE wp_users SET user_login=Thor' WHERE user_login='admin'; Change the admin username in MySQL: Or create a new account with administrator privileges. 1. Create a new account. Make the username very unique 2. Set account to Administrator role 3. Log out and log back in with new account 4. Delete admin account WordPress will allow you to reassign all content written by admin to an account of your choice. 18. 3. Delete the Admin user account WordPress lets you set the username during the installation process! DON'T USE ADMIN! 19. 3. Delete the Admin user account Knowing your username is half the battle. Don't make it easy on the hackers. 20. 4. File and Folder Permissions What folder permissions should you use? Good Rule of Thumb: Files should be set to 644 Folders should be set to 755 Start with the default settings above If your host requires 777SWITCH HOSTS! 21. 4. File and Folder Permissions find [your path here] -type d -exec chmod 755 {} ; find [your path here] -type f -exec chmod 644 {} ; Or via SSH with the following commands 22. 5. Move wp-config.php WordPress features the ability to move the wp-config.php file one directory above your WordPress root This makes it nearly impossible for anyone to access your wp-config.php file from a browser as it now resides outside of your websites root directory You can move your wp-config.php file to here WordPress automatically checks the parent directory if a wp-config.php file is not found in your root directory public_html/wordpress/wp-config.php If WordPress is located here: public_html/wp-config.php 23. 6. Lock Down WP Login and WP Admin 24. 6. Lock Down WP Login and WP Admin define('FORCE_SSL_LOGIN', true); Add the code below to wp-config.php to force SSL (https) on login Add the code below to wp-config.php to force SSL (https) on all admin pages define('FORCE_SSL_ADMIN', true); Using SSL (https) on all admin screens in WordPress will encrypt all data transmitted with the same encryption as online shopping 25. 6. Lock Down WP Login and WP Admin AuthUserFile /dev/null AuthGroupFile /dev/null AuthName "Access Control" AuthType Basic order deny,allow deny from all #IP address to Whitelist allow from 67.123.83.59 allow from 123.123.123.* 1. Create an .htaccess file in your wp-admin directory Only a user with the IP 67.123.83.59 or 123.123.123.* can access wp-admin 2. Add the following lines of code: 26. 7. Use Trusted Sources for Themes & Plugins WPMU.org reviewed the top 10 results for free wordpress themes on Google. Out of the ten sites reviewed 1. Safe: 1 2. Iffy: 1 3. Avoid: 8 Source: http://wpmu.org/why-you-should-never-search-for-free-wordpress-themes-in-google-or-anywhere-else/ 27. 7. Use Trusted Sources for Themes & Plugins Source: http://wpmu.org/why-you-should-never-search-for-free-wordpress-themes-in-google-or-anywhere-else/ The only safe site reviewed was WordPress.org Most themes included base64() encoded text links to promote various servies 28. 8. Be Secure Locally Think of your local environment as if it was a medieval castle and youre the queen or king. Your kingdom must be protected! Keep your computer up to date Ensure youre patching or installing updates ASAP Automatic updates rock! Install an anti-virus solution Ensure youre keeping definitions current Automatic updates arent a bad idea here either! Yes, personal firewalls still apply! 29. 8. Be Secure Locally Its your information, but whos watching & listening? You may be a network geek at home, but what happens at Starbucks? Your Internet Connection Use SSL whenever possible, especially on an unverified connection. HTTPS is a great way to ensure your transactions & traffic are traveling with security in mind. Connecting To Your Site(s) Consider using sFTP or SSH vs. FTP Still widely marketed, but did you know your credentials are passed unencrypted when using FTP? If unavoidable, do not allow anonymous logins, limit connections, practice least privilege. Dont store your credentials in your FTP client. 30. 9. Use Common Sense Use a strong password BAD: bradisawesome GOOD: SCrEE79joLly$ [email protected], E=3, S=$, O=0 (This is not unique, they know this) Update passwords regularly (Monthly, make a schedule) Know your admins, limit number of accounts (WP, FTP, Hosting, etc) Backup, Backup, Backup (Use BackupBuddy for scheduled backups) http://strongpasswordgenerator.com/ 31. Plugins & Services 32. Login Lockdown http://wordpress.org/extend/plugins/login-lockdown/ 33. Sucuri Security SiteCheck Malware Scanner http://wordpress.org/plugins/sucuri-scanner/ Scan your site for malware, SPAM injections, errors, and more Hardening of key WordPress directories Verify core WordPress files have not been modified 34. Exploit Scanner http://wordpress.org/extend/plugins/exploit-scanner/ Scans your files and database for potentially malicious code Does not remove code, only detects it 35. Free Website Malware Scanner: http://sitecheck.sucuri.net/scanner/ Website monitoring Hack cleanup services Sucuri Security Plugin Free to clients Web Application Firewall Integrity Monitoring Auditing Hardening http://Sucuri.net 36. Security Related Articles http://codex.wordpress.org/Hardening_WordPress http://blog.sucuri.net/2012/04/lockdown-wordpress-a-security-webinar-with-dre-armeda.html http://blog.sucuri.net/2012/04/ask-sucuri-how-to-stop-the-hacker-and-ensure-your-site-is- locked.html http://blog.sucuri.net/2012/04/ask-sucuri-what-should-i-know-when-engaging-a-web- malware-company.html Clean a Hacked Site http://codex.wordpress.org/FAQ_My_site_was_hacked http://www.marketingtechblog.com/wordpress-hacked/ Support Forums Hacked: http://wordpress.org/tags/hacked Malware: http://wordpress.org/tags/malware 37. Mail: [email protected] Twitter: @ThorK108 Linkedin: in/ThorKristiansen Web: Shivaweb.dk Facebook: Wordpress Fan