this post was submitted on 12 Feb 2024
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239
ExpressVPN bug leaks DNS requests for Windows users with split tunneling: (www.bleepingcomputer.com)
submitted 9 months ago by [email protected] to c/[email protected]
10 comments fedilink hide all child comments
 

Bug:

Affected versions 12.23.1-12.72.0 (May 2022-Feb 2024) with split tunneling feature.

Impact:

Exposed visited domains to user's ISP, potentially leaking browsing history.

Affected users:

Windows users with active split tunneling (about 1%).

Fix:

Upgrade to version 12.73.0 (removes split tunneling temporarily).

Alternatives:

Disable split tunneling or use ExpressVPN version 10.

Note:

All other traffic and content remain encrypted.

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[–] [email protected] 11 points 9 months ago (2 children)

Uh, I might be wrong here, but isn’t the whole purpose of split tunneling to allow you to send only necessary traffic through a given tunnel? Then the rest of your traffic goes whatever the default path is?

This seems more like a feature than a CVE. Maybe I’m missing something.

[–] [email protected] 27 points 9 months ago

They might mean it's happening even with requests routed through the VPN.

[–] [email protected] 5 points 9 months ago

so it would be like you say I want Firefox to go thru the tunnel, you would want the DNS requests made from it to go thru as well, in this case they weren't tunneled and were just going to the normal dns server