Prevent exposure of wp-config.php
From July to September in 2015, 33 types of malicious requests to attempt exposing the wp-config.php
via vulnerable plugins and themes had been observed on my site. I analyzed all of them to identify if IP Location Block can block them or not.
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Impact on server load caused by brute-force attacks
I have examined the load reduction performance against brute-force attacks by using IP Location Block. I report the result in this article.
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Jetpack is the Swiss army knife for your WordPress site. Plentiful awesome features are served for free by hooking to WordPress.com.
In this article, I show some notes related to living with Jetpack and IP Location Block.
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Analysis of Attack Vector against WP Plugins
On the WPScan Vulnerability Database maintained by Sucuri, we can find many new plugins and themes every month. Of course, WP-ZEP is not God Almighty against these. Then you may wonder about:
- Which attack can WP-ZEP prevent?
- How many attacks can WP-ZEP prevent?
I’m with you!!
So I picked up the latest 50 vulnerabilities from WPScan DB, and dig into each attack vector one by one to investigate which can be prevented or not by WP-ZEP.
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Referrer Suppressor for external links
“Referrer Suppressor” which eliminate the browser’s referer is one of my favorite feature in IP Location Block.
It came to this plugin as a logical consequence of WP-ZEP. In this article, I’ll tell you the story.
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How does WP-ZEP prevent zero-day attack?
IP Location Block is the only plugin which has an ability to prevent zero-day attack even if some of the plugins in a WordPress site have unveiled vulnerability. I call it “Zero-day Exploit Prevention for WordPress” (WP-ZEP).
In this article, I’ll explain its mechanism and also its limitations. Before that, I’ll mention the best practice of plugin actions.
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Why so many WordPress plugins are vulnerable?
Source: © The WPScan Team
The above graph shows recent statistics of WordPress vulnerability from WPScan Vulnerability Database summarized by Sucuri which is a worldwide security company especially famous for analyzing vulnerability in WordPress.
Why so many vulnerabilities are there in WP plugins?
After reading the Sucuri Blog deeply and widely, I came to the conclusion that there is some kind of disuse and misuse of WordPress core functions.
I’d like to verify each vulnerability from this point of view.
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CloudFlare & CloudFront API class library
When you use CloudFlare or CloudFront as a reverse proxy service, you can retrieve a visitor’s IP address and country code from their special offered environment variables.
In this article, I’ll show you how to make use of their services.
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Shortcode for Geo Filtering