LG patches data theft bug affecting millions of Android phones

Malicious JavaScript could be entered into a contact form

LG has patched a security flaw in an application preinstalled on millions of its Android G3 smartphones that researchers found could be used to steal a variety of data.

The application, called Smart Notice, is a kind of multifunctional widget, managing contacts, notifications, and weather and traffic alerts.

Researchers from BugSec and Cynet, two computer security companies, found that they could attack a person's phone by sending them a contact with malicious JavaScript contained in the name field, according to a video.

Once the code was on the phone, any information stored on its SD card, such as private images and chat logs, could be stolen.

"The root cause for the security problem is the fact that Smart Notice does not validate the data presented to the users," BugSec and Cynet wrote in a blog post on Thursday.

The researchers found a variety of ways to trigger their malicious code and carry out actions, such as opening a phishing site that tries to steal a person's Gmail credentials or prompt a person to download a remote access trojan.

"With a little tweak, we were able to load external scripts from a remote host and 'refresh' our code every few seconds, giving us the ability to have active command and control over the LG phone and send new payloads," the companies wrote.

It was also possible to conduct a denial-of-service attack that could only be stopped by doing a hard reset of the phone, they wrote.

Join the Good Gear Guide newsletter!

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

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?