Menu
Android app developers should update to Dropbox's latest SDK

Android app developers should update to Dropbox's latest SDK

A vulnerability could allow your Dropbox files to be uploaded to someone else's account

Android apps that use Dropbox for storage and are built using an older version of its SDK are vulnerable to an attack that can steal data, although Dropbox has released a fix, according to IBM security researchers.

IBM's application security research team said Wednesday they had found a way to link their own Dropbox account to an Android app on another person's phone that connects to the storage service. After a successful attack, any data uploaded by the app is delivered to the attacker's Dropbox account.

Dropbox publishes an SDK (software development kit) for linking its service to an app. The flaw, nicknamed "DroppedIn," affected Dropbox SDK versions 1.5.4 through 1.6.1 and was fixed in version 1.62, IBM said in a blog post.

The attack, while serious, isn't easy to carry out. It also won't work if a person has Dropbox's own mobile app installed on their phone, and it won't give an attacker access to the full content of a Dropbox account.

Dropbox said the issue doesn't appear to have been exploited by hackers to access data, and that most of the popular apps using its SDK have been patched.

An attacker must first obtain an access token for a Dropbox-enabled app, which can be done by downloading the app and authorizing it for their own Dropbox account.

The attacker must then lure someone to a website or web page with malicious code. The code grabs from the victim's phone a large cryptographic number, known as a "nonce," that's used as part of the authentication process to link an account. With the access code and the nonce, the attacker can link their own Dropbox account to the victim's Android app.

One way users can tell if they've been attacked is by logging into Dropbox using a PC and checking if there are files that should have been saved by a mobile app using Dropbox that aren't there, IBM wrote. It said there aren't many Android apps that use Dropbox's SDK, but a couple of popular ones do, including Microsoft's Office Mobile and AgileBits' 1Password.

As some affected Android apps may not be updated quickly, the best way to defend against the attack is to download the mobile version of Dropbox, which "makes exploitation impossible," IBM wrote.

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

Subscribe here for up-to-date channel news

Follow Us

Join the New Zealand Reseller News newsletter!

Error: Please check your email address.

Tags dropboxIBMsecurityExploits / vulnerabilities

Featured

Slideshows

Tight lines as Hooked on Lenovo catches up at Great Barrier Island

Tight lines as Hooked on Lenovo catches up at Great Barrier Island

​Ingram Micro’s Hooked on Lenovo incentive programme recently rewarded 28 of New Zealand's top performing resellers with a full-on fishing trip at Great Barrier Island for the third year​ in a row.

Tight lines as Hooked on Lenovo catches up at Great Barrier Island
Inside the AWS Summit in Sydney

Inside the AWS Summit in Sydney

As the dust settles on the 2017 AWS Summit in Sydney, ARN looks back an action packed two-day event, covering global keynote presentations, 80 breakout sessions on the latest technology solutions, and channel focused tracks involving local cloud stories and insights.

Inside the AWS Summit in Sydney
Channel tees off on the North Shore as Ingram Micro hosts annual Cure Kids Charity golf day

Channel tees off on the North Shore as Ingram Micro hosts annual Cure Kids Charity golf day

Ingram Micro hosted its third annual Cure Kids Charity Golf Tournament at the North Shore Golf Club in Auckland. In total, 131 resellers, vendors and Ingram Micro suppliers enjoyed a round of golf consisting of challenges on each of the 18 sponsored holes, with Team Philips taking out the top honours.

Channel tees off on the North Shore as Ingram Micro hosts annual Cure Kids Charity golf day
Show Comments