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VyprVPN for Windows

Privilege Escalation




Golden Frog



Product version

Vulnerability Details

VyprVPN for Windows suffers from a SYSTEM privilege escalation vulnerability through the VyprVPN service. This service establishes an NetNamedPipe endpoint that allows applications to connect and call publicly exposed methods. The SetProperty method allows an attacker to configure the AdditionalOpenVpnParameters property and control the OpenVpn command line. Using the OpenVPN plugin parameter, an attacker may specify a dynamic library plugin that should run for every new VPN connection attempt. This plugin will execute code in the context of the SYSTEM user. This attack may be conducted using VyprVPN Free account credentials and the VyprVPN Desktop Client.

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Vendor response

A release is scheduled

Disclosure timeline

04-09-2018 - Vendor disclosure via email
04-09-2018 - Vendor notified via Facebook
04-10-2018 - Vendor response via email: Vulnerability resolved in latest release
04-16-2018 - VerSprite verifies vulnerability unresolved
04-17-2018 - VerSprite notifies the vendor of findings
04-25-2018 - Vendor followup
04-26-2018 - Vendor response: A release is scheduled that resolves this vulnerability
05-01-2018 - Vendor notified of the advisory release

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