PrivateVPN and Betternet Apps Vulnerability Let Attackers Send Malicious Updates

VPN apps PrivateVPN and Betternet were plagued by a
vulnerability that could have let attackers push fake updates to the apps and
install malicious apps.

One reason people use a VPN solution is to stay safe in a
dangerous online world. A good example is when connecting to a public Wi-Fi
network. Without a VPN, the data sent and received by a user could be
intercepted.

But what happens when the VPN application itself has a
vulnerability that could let attackers remotely install applications on
people’s phones or laptops? While it’s true that most software has vulnerabilities,
the type of vulnerability found in Betternet and PrivateVPN is not what you
might expect.

The discovery was made by VPNPro, a publication that
deals with reviews, guides, trends, and other types of media. Only a couple of
VPN clients could have been exploited, although more apps permitted the initial
conditions.

“Vulnerabilities in the PC apps of two of the top 20
VPNs, PrivateVPN and Betternet, can allow hackers to intercept its
communications and force the apps to download a fake update,” says VPNPro.
“The app may automatically apply the fake update, or send the user a
notification to update the app.”

Researchers were able to force the two apps to download
and install a fake update, which means that someone with control over the
network, such as a free hotspot, for example, could trigger the installation of
malware.

People could be hit by ransomware, become a bot in DDoS
attacks, lose credentials for their banking accounts, and much more.

Fortunately, the developers of both apps were quick to
fix the issues after VPNPro notified them on February 18. PrivateVPN released a
patch on March 26 and Betternet fixed it on April 14.

Users can’t do much to mitigate this problem, but it’s a
good practice never to download files while connected to public Wi-Fi and
always have a security solution running to make sure malware is intercepted
before it has a chance to do any harm.

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