Is Your WordPress Blog A Danger To The Internet?
This article from Google news talks about a very real problem that every WordPress user faces. The wave of attacks being directed at WordPress installations Globally is far beyond the scope of anything that has ever been seen. This effort shows evidence of some sort of “Hacking Network”, something unknown before this.
In the article the author, Dan Godin gives some alarming facts that show exactly how different the attack is from any past hacker activity. Never before has an attack been launched from so many different IP Addresses at one time. Instead of perhaps a dozen or so IPs used commonly by hackers, this attack comes from over 90,000 different IPs.
Another thing to note is the fact that this attack centers on sites using WordPress. Normally hackers are more than happy to hack any site they find. By targeting only WordPress installations this attack stands apart. As you can see from the article, there are many possible dire effects for all Internet users. Mass denial of service attacks are but one of those. By leaving your WordPress installation unprotected from these sort of attacks you are not only risking losing your site, but helping the hackers mount attacks against Financial Institutions and other vital services.
Huge attack on WordPress sites could spawn never-before-seen super botnet
Ongoing attack from >90,000 computers is creating a strain on Web hosts, too.
by Dan Goodin – Apr 12 2013, 6:10pm USMST
CloudFlare Security analysts have detected an ongoing attack that uses a huge number of computers from across the Internet to commandeer servers that run the WordPress blogging application. The unknown people behind the highly distributed attack are using more than 90,000 IP addresses to brute-force crack administrative credentials of vulnerable WordPress systems, researchers from at least three Web hosting services reported. At least one company warned that the attackers may be in the process of building a “botnet” of infected computers that’s vastly stronger and more destructive than those available today.
That’s because the servers have bandwidth connections that are typically tens, hundreds, or even thousands of times faster than botnets made of infected machines in homes and small businesses. “These larger machines can cause much more damage in DDoS [distributed denial-of-service] attacks because the servers have large network connections and are capable of generating significant amounts of traffic,” Matthew Prince, CEO of content delivery network CloudFlare, wrote in a blog post describing the attacks.
It’s not the first time researchers have raised the specter of a super botnet with potentially dire consequences for the Internet. In October, they revealed that highly debilitating DDoS attacks on six of the biggest US banks used compromised Web servers to flood their targets with above-average amounts of Internet traffic.
The botnet came to be known as the itsoknoproblembro or Brobot, names that came from a relatively new attack tool kit some of the infected machines ran. If typical botnets used in DDoS attacks were the network equivalent of tens of thousands of garden hoses trained on a target, the Brobot machines were akin to hundreds of fire hoses. Despite their smaller number, they were nonetheless able to inflict more damage because of their bigger capacity.
There’s already evidence that some of the commandeered WordPress websites are being abused in a similar fashion. A blog post published Friday by someone from Web host ResellerClub said the company’s systems running that platform are also under an “ongoing and highly distributed global attack.”
“To give you a little history, we recently heard from a major law enforcement agency about a massive attack on US financial institutions originating from our servers,” the blog post reported. “We did a detailed analysis of the attack pattern and found out that most of the attack was originating from [content management systems] (mostly WordPress). Further analysis revealed that the admin accounts had been compromised (in one form or the other) and malicious scripts were uploaded into the directories.”
The blog post continued: “Today, this attack is happening at a global level and WordPress instances across hosting providers are being targeted. Since the attack is highly distributed in nature (most of the IPs used are spoofed), it is making it difficult for us to block all malicious data.”
According to CloudFlare’s Prince, the distributed attacks are attempting to brute force the administrative portals of WordPress servers, employing the username “admin” and 1,000 or so common passwords. He said the attacks are coming from tens of thousands of unique IP addresses, an assessment that squares with the finding of more than 90,000 IP addresses hitting WordPress machines hosted by HostGator.
“At this moment, we highly recommend you log into any WordPress installation you have and change the password to something that meets the security requirements specified on the WordPress website the company’s Sean Valant wrote.
“These requirements are fairly typical of a secure password: upper and lowercase letters, at least eight characters long, and including ‘special’ characters (^%$#@*).” Operators of WordPress sites can take other measures too, including installing plugins such as this one and this one, which close some of the holes most frequently exploited in these types of attacks. Beyond that, operators can sign up for a free plan from CloudFlare that automatically blocks login attempts that bear the signature of the brute-force attack.
Already, HostGator has indicated that the burden of this mass attack is causing huge strains on websites, which come to a crawl or go down altogether. There are also indications that once a WordPress installation is infected it’s equipped with a backdoor so that attackers can maintain control even after the compromised administrative credentials have been changed. In some respects, the WordPress attacks resemble the mass compromise of machines running the Apache Web server, which Ars chronicled 10 days ago.
With so much at stake, readers who run WordPress sites are strongly advised to lock down their servers immediately. The effort may not only protect the security of the individual site, it could help safeguard the Internet as a whole.
The final paragraph sums up the importance of securing your WordPress sites. If you have not done so, use the link below to get a FREE WP Security Video Series.
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