Email accounts exposed in Verizon My FiOS mobile app

Verizon has now fixed the flaw in the API of My FiOS, according to a software developer

Randy Westergren

Randy Westergren

Verizon fixed a serious vulnerability in its My FiOS mobile application that allowed unfettered access to email accounts, according to a developer who found the problem.

Randy Westergren, a senior software developer with XDA Developers, looked at the Android version of My FiOS, which is used for account management, email and scheduling video recordings.

"Since Verizon has a good amount of my information, I thought it would be a good candidate for research," Westergren wrote on his personal blog. "I was right, and the results were astonishing."

The flaw, contained in the application's API, could have allowed an attacker to read individual messages from a person's Verizon inbox and even send emails from an account, he wrote.

Westergren looked at the traffic sent back and forth between My FiOS and Verizon's servers. He found My FiOS would return the content of someone else's email inbox by simply substituting a different user ID in a request.

He contacted Verizon on Thursday, which acknowledged the problem a day later. Verizon issued a fix on Friday, Westergren wrote.

"Verizon's security group seemed to immediately realize the impact of this vulnerability and took it very seriously," Westergren wrote. "They were very responsive during this process and even arranged for a free year of FiOS Internet service as a token of their gratitude."

Verizon officials couldn't immediately be reached for comment Sunday.

Send news tips and comments to jeremy_kirk@idg.com. Follow me on Twitter: @jeremy_kirk

Join the Good Gear Guide newsletter!

Error: Please check your email address.

Tags securityExploits / vulnerabilitiesVerizon Communications

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

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 News Articles

Resources

PCW Evaluation Team

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.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?