Joomla patches critical remote execution bug

Users should immediately upgrade to version 3.4.6

The open-source project behind the widely used Joomla content management system has issued a patch for a vulnerability that is now being widely used by hackers.

Sucuri, a company that specializes in securing websites, wrote on Monday that attackers have been trying exploit the flaw for the last two days.

As of Monday, Sucuri said "the wave of attacks is even bigger, with basically every site and honeypot we have being attacked. That means that probably every other Joomla site out there is being targeted as well."

The vulnerability, which affects Joomla versions 1.5 to 3.4.5, involves the user agent string, which is information transmitted by a browser to a Web server when a user visits a Web page.

The user agent string includes the browser type and version and the computer's operating system and version. It is used by Web servers to deliver an appropriate version of a website, such as a mobile versus a desktop version.

Attackers are "doing an object injection via the HTTP user agent that leads to a full remote command execution," Sucuri said.

Because many websites use Joomla, it presents an attractive target. If a Joomla site is compromised, attackers may be able to plant malicious code on a page or redirect people to other malicious sites.

Users are advised to upgrade to version 3.4.6, which is available here. Joomla is used by companies including eBay, Peugeot and Barnes & Noble.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags securityflawjoomlabug

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Jeremy Kirk

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Kurt Hegetschweiler

Brother PocketJet PJ-773 A4 Portable Thermal Printer

It’s perfect for mobile workers. Just take it out — it’s small enough to sit anywhere — turn it on, load a sheet of paper, and start printing.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?