WordPress Security Fundamentals - WC North Canton
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WordPresssecurityfundamentals
aboutmeSomething
Joseph Herbrandson
Web design and infosec Committed to WordPress and website security since 2008
sucuri security Security Analyst - Cleaning up malware and protecting websites from infection everyday
Website sucuri.net
twitter.com/sucuri_security
facebook.com/SucuriSec
sucuri.net
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Sucurisecurity• Website security Company
• Operate internationally
• platform agnostic (wordpress, joomla, drupal, etc…)
• scan 2 million websites per month
• block 4 million attacks per month
• remediate 400-500 sites per day
• signature/heuristics based
• 24/7 operations
No 0% Threat Rule No such thing as perfect security. If someone REALLY wants in, they will find a way.
0- Day Attacks Brand new attacks using different methods make these impossible to plan for. 0-Day attacks are resolved once it has been studied, and fix has been published.
Not just Wordpress! Security starts with everyday practices. All the wrong moves made off of your website, will still affect things on your website!
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securewpNotes On
Heartbleedchange all passwords! If website uses SSL encryption, most likely it was (or still is) vulnerable.
still vulnerable? Is the heart still bleeding? Check here:
https://filippo.io/Heartbleed/
educate yourself http://heartbleed.com
Public Service Announcemnt…
Who Are They?
Hackersidentities
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Who are these Guys? - It can be anyone good with computers.
- Intelligent and Mischievous; Enterprising and Effective.
Where are they from? Most attacks come from Turkey, Syria, Tunisia, Brazil, Russia, China, and even the United States.
!
Brute Force sql injection ddos social engineering
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what’s going on here…
attacktypes
Hacked?
WhyyouIt’s nothing Personal Most attacks are automated and done on many websites at a time
You're on the list Once you’re a target, you stay a target. Increasing your security is the best way to ask them to LEAVE YOU ALONE
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The
$Billionspam!
Pharma and spam attacks Viagra, Cialis, and Levitra ads, make marketers over 2 BILLION dollars every year from blackhat methods of infecting websites, and redirecting users to websites selling prescription drugs.
!
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Sending a Message
Hacktivists!
The hacktivists Turning your site into a billboard for anarchy and mayhem
PillarsofsecurityYour Security
Frontline Disaster Preventionbackups
Basic Website MaintenanceStaying current
Common Sense PoliciesAccess control
WordPress Intrusion Preparation
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securedbackupsDisaster Prevention
Have a backup plan Playing defensively from the back is your best first line defense.
Stored Remotely Away from your live server, and the clutches of an intruder.
…more than one if possible! The more layers of your backup plan, the less likely it is to fail.
Scheduled and Automated Don’t rely on yourself.
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backupSolutionsOptions for
Vault PressWeb hosting Sucuri Backups
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wordpressUpdatesThe Importance of
Your version is your level of security If your WordPress version is out of date, that is your weak link in the chain. Current version: WordPress 3.9
Major versus Maintenance releases Be quick to upgrade anything that aims to patch, fix or secure a previously released feature. Find all versions at http://wordpress.org/download/release-archive/
At the push of a button… Upgrades are quick and easy, and pose no risk to your content; it only takes a minute!
fear not! downgrading is a simple task If things do not turn out as hoped with your site, you can downgrade easily. See a full tutorial here: http://etuts.org/manually-downgrade-wordpress/
Have an upgrade path Transition between development and live site versions to employ good version management.
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As of February 2014
17%
8%
11%
27%
10%
28%
3.0 3.4 3.5 3.6 3.7 3.8
A little bit about
passwordsecurityThe tactics Malicious password guessing applications are getting more advanced every day.
easier to crack than you think… Random and incremental crackers can take years, or even centuries.
Dictionary Attacks are drastically changing this process
…Numbers Stop using your dates in your passwords!
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mostusedpassWordsThe web’s
No. Title Ranking Last Year
1 123456 2
2 password 1
3 12345678 3
4 qwerty 5
5 abc123 4
6 123456789 New
7 111111 9
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The following are statistics showing the most used passwords in 2013, documented from lists stolen in major organization security breaches.
passwordmanagersTools of the trade:
Lastpass keePass DashLane
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1Password
Case study
cleanupFtp/sftp File Management Basic file cleanup with FileZilla
WordPress Version Archives https://codex.wordpress.org/WordPress_Versions (Google “wordpress versions”)
Theme Backups Always know where to find a clean copy of your theme
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Infectedsiteinfection: blackhat seo spam injection
Spam is displayed with Javascript turned off. Otherwise it’s hidden!
Infection confirmed at the free Sucuri website scanner: http://sitecheck.sucuri.net
Cleanup
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Cleanup
removeandreplacewp-admin and wp-includes These directories are replaceable for cleanup and downgrading versions
Replace other core files The other core files outside of these two directories can be uploaded to directly replace their counterparts
do not delete wp-config.php or wp-content! These are vital to the functionality of your blog, and cannot be replaced easily, or without a backup.
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Cleanup
removeandreplace pt.2
find your theme Your theme is replaceable if youhaven’t made customchanges
delete your old theme This is the most common placefor infected WordPress files
replace with clean copy Good as new!
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Cleanup
cleansite
cleanup accomplished: Your WordPress site is now spam free!
!
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A healthy dose of…
paranoia
worry about the right things: - Passwords versus Usernames
- Web hosting
- Plugin/Theme origin
- Patching/Updating
- Who your friends are
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websitefirewallcloudproxy web-application firewall
Blocks 100% of known web attacks Constantly patched and updated against everything known on the Internet.
ddos absorbtion Expandable to deal with attacks of all sizes
whitelisting against brute force Stop massive password attacks immediately.
!
http://cloudproxy.sucuri.net/features/
Advanced Protection
anyquestions?