Dropbox Files Left Unprotected, Open To All

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Publicated : 22/11/2024   Category : security


Dropbox Files Left Unprotected, Open To All


A software bug rendered the account authentication mechanism non-functional for four hours, leaving customers fuming over the latest security lapse at the popular online file storage service.



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Dropbox on Monday acknowledged that its vast store of files was left open to the world on Sunday for four hours as a result of a bug. During this period, any account could be accessed using any password.
The flaw, a software bug that rendered the services authentication mechanism non-functional, only took five minutes to fix, once it was discovered.
Over 25 million customers store their files online with Dropbox, but only a few of those accounts showed activity during the four hour window of vulnerability. A very small number of users (much less than 1 percent) logged in during that period, some of whom could have logged into an account without the correct password, said Dropbox co-founder and CTO Arash Ferdowsi, in
a blog post
. As a precaution, we ended all logged in sessions.
Ferdowsi said that his company is investigating the incident and will notify account holders if any unusual activity is identified during the time when accounts were unprotected. An update to Ferdowsis blog post indicates that these notifications have been sent out.
The issue was
made public
by security researcher Christopher Soghoian, who received a tip from a Dropbox user.
In May, Soghoian filed a complaint against Dropbox with the Federal Trade Commission alleging that the companys security claims have been deceptive. Previously, Dropbox had advertised that All files stored on Dropbox servers are encrypted (AES-256) and are inaccessible without your account password. In April, the company
altered its claims
to make it clear that Dropbox, rather than the account holder, controls the file encryption keys, thereby enabling Dropbox to provide access to account holders files when presented with lawful demands from authorities.
In March, the security of Dropboxs Android mobile client came under fire when security researcher Mike Cardwell
revealed
that the app was transmitting file metadata without SSL encryption.
The following month, Ferdowsi and Drew Houston, co-founder and CEO, explained that they had decided to favor performance over security because enabling SSL for all metadata transfers made the app several times slower. They also acknowledged Cardwells concerns and said they were working on a way to send metadata over SSL more efficiently in their mobile apps.
Dropboxs users have made their displeasure about Sundays incident known in a series of comments appended to Ferdowsis blog post. Many have said they plan to seek alternative cloud storage services.
As if on cue, Wuala, a competing cloud storage service operated by hard disk maker La Cie, published
a blog post
on Tuesday stating that Dropboxs problems wouldnt be an issue if files were encrypted by the client. Encrypting your files before they are sent to the cloud makes Wuala inherently more secure than solutions that rely on server-side encryption, the company said.
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Dropbox Files Left Unprotected, Open To All