VPN letting data through

Originator:woutervdbroek
Number:rdar://38632077 Date Originated:13/03/2018
Status:Open Resolved:No
Product:iOS Network Extensions Framework Product Version:11.2.6
Classification:bug Reproducible:YES
 
Area:
Network Extensions Framework

Summary:
When connecting a VPN, which has been added by the Network Extension Framework, it looks like not all data is send trough the VPN connection but also over the mobile network.

Steps to Reproduce:
Install a VPN (or VPN settings) from  a VPN server which blocks all data. Start the VPN (y starting the app again or thru settings. Start Safari and browse to Apple.com and see if it's blocked (does not connect). Then open WhatsApp and send a message to another person. Within 2 minutes the message will been sent (if you are on a mobile connection, on wifi it will be blocked). If you try iMessage the message will not be sent until the VPN is turned off.

Expected Results:
The message in WhatsApp should not be sent when VPN is on

Actual Results:
The message in Whatsapp has been sent (within 2 minutes) when VPN is on

Version/Build:
iOS 11.2.6 (15D100)

Configuration:
macOS 10.13.3 (17D102); Xcode 9.2 (9C40b)

Comments


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