Analysing Leakage during VPN Establishment in Public Wi-Fi Networks

被引：1

作者：

Burkert, Christian ^{[1
]}

McDougall, Johanna Ansohn ^{[1
]}

Federrath, Hannes ^{[1
]}

Fischer, Mathias ^{[1
]}

机构：

[1] Univ Hamburg, Hamburg, Germany

来源：

IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC 2021) | 2021年

关键词：

wi-fi; hotspot; vpn; privacy; captive portal;

D O I：

10.1109/ICC42927.2021.9500375

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The use of public Wi-Fi networks can reveal sensitive data to both operators and bystanders. A VPN can prevent this. However, a machine that initiates a connection to a VPN server might already leak sensitive data before the VPN tunnel is fully established. Furthermore, it might not be immediately possible to establish a VPN connection if the network requires authentication via a captive portal, thus increasing the leakage potential. In this paper we examine both issues. For that, we analyse the behaviour of native and third-party VPN clients on various platforms, and introduce a new method called selective VPN bypassing to avoid captive portal deadlocks.

引用

页数：6