Firefox and Google Chrome have implemented a technology allowing the IP address of VPN users can be traced. Before Daniel Roesler warns on GitHub . The problem is caused by WebRTC , an open source project developed by Google that provides browsers Real-Time Communications (RTC).
Both Firefox and Chrome have implemented whereby the WebRTC technology called " STUN requests "can send to STUN servers. Through these requests, the local and public IP addresses of the user can be captured via JavaScript. This is especially a problem for VPN users, who often use VPNs to protect their identity. Roesler made this demonstration to capture the IP addresses. Readers Reddit give different solutions to the problem, such as disabling WebRTC in Firefox and Chrome.
In Firefox, this can by in the address bar " about: config "to enter and then put" media.peerconnection.enabled "to" false ".Google Chrome users can do this in the address bar " chrome: // flags / "to enter and then" Disable WebRTC device enumeration "to turn. Other solutions have JavaScript disabled, using Firefox NoScript or Chrome extension WebRTC Block. Additionally, VPN users get TorGuard advised to set the VPN tunnel directly to their router.
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