Thousands of WordPress based websites have been hacked to compose a global scale botnet that is performing powerful DDOS attacks.
I start the post with recommendations, if you are a blogger using WordPress don’t waste time and update it and all installed
plugins to the latest versions!
Have you done it? OK, now I can explain you what it is happening.
Thousands of WordPress blogs have been hacked to compose a global scale
botnet that is performing powerful DDOS attacks.
We read in the past of a massive
cyber attack coordinated with a huge
botnet against
millions of websites based on the popular CMS WordPress, around 100000
servers were successful compromised fueling the malicious architecture
used for the attack.
The news was reported by
CloudFlare and
HostGator that
on April alerted the WordPress community on the ongoing massive attack
launched against WordPress blogs all over the Internet, the alert was
related to a massive
brute-force dictionary-based attack conducted to expose the password for the ‘admin’ account of every WordPress site.
In August, 2013 researchers at Arbor Networks have discovered a
botnet dubbed
Fort Disco that was used to compromise more than 6000 websites based on popular CMSs such as WordPress, Joomla and Datalife Engine.
My colleagues at TheHackerNews received a
DDOS attack logs report from ‘
Steven Veldkamp‘
that highlights that the victim’s website was under heavy DDoS
attack recently, originated from numerous compromised WordPress based
websites. It is highly probably that the ongoing attack is linked to the
events occurred in April that allowed attackers to take control of a
high number of vulnerable WordPress Hosts.
The attacks are very concerning due to the
botnet extension and the high performance of
bots. The
offensive is conducted on a global scale and appears highly distributed
in nature and well organized, for these reasons it is very difficult to
block malicious traffic.
The attack logs from timing 23/Sep/2013:13:03:13 +0200 to
23/Sep/2013:13:02:47 +0200 revealed that just in 26 second attacker was
able to perform a powerful DDOS attack from 569 unique compromised
WordPress.
The list of sources used by attackers includes blogs of Mercury
Science and Policy at MIT, Stevens Institute of Technology and The
Pennsylvania State University.
According to statistics proposed by
WP WhiteSecurity,
from 40,000+ WordPress Websites in Alexa Top 1 Million, more than 70%
of WordPress installations are vulnerable to hacker attacks.
Following other shocking statistics based on the analysis of 42,106 WordPress websites found in Alexa’s top 1 million websites.
- 74 different versions of WordPress were identified.
- 11 of these versions are invalid. For example version 6.6.6.
- 18 websites had an invalid non existing versions of WordPress.
- 769 websites (1.82%) are still running a subversion of WordPress 2.0.
- Only 7,814 websites (18.55%) upgraded to WordPress 3.6.1.
- 1,785 websites upgraded to version 3.6.1 between the 12th and the 15th of September.
- 13,034 websites (30.95%) are still running a vulnerable version of WordPress 3.6.
It is important to remark that the availability of automated vulnerability assessment tools and
DIY attack tools on the black market is causing a meaningful increase in the number of
cyber attacks.
Owners of Website based on WordPress CMS must improve at least
basic security settings and implement best practices such as the use of
robust passwords and the accurate management of ”admin” accounts.
Within the WordPress community are also already available
interesting plugins that could help site managers to improve the
security of their WordPress instance.
If you believe that the security of
a WordPress based site has a limited impact on the Internet community
you are wrong, the crocks could use the hacked platforms for various
illegal activities …. we must stop them!