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ProtonVPN for Windows

Privilege Escalation

CVE ID

CVE-2018-10169

Vendor

ProtonVPN AG

Product

ProtonVPN

Product Version

1.3.3

Vulnerability Details

ProtonVPN for Windows suffers from a SYSTEM privilege escalation vulnerability through the ProtonVPN Service. This service establishes an NetNamedPipe endpoint that allows arbitrary installed applications to connect and call publicly exposed methods. The Connect method accepts a class instance argument that provides attacker control of the OpenVpncommand line. An attacker can specify a dynamic library plugin that should run for every new VPN connection. This plugin will execute code in the context of the SYSTEM user.

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Vendor Response

Vendor development team will release update

Disclosure Timeline

  • Vendor disclosure via email

  • Vendor notified via Facebook

  • Vendor response via email

  • VerSprite Security extends advisory release timeline

  • Vendor notified of the advisory release