Blocking WEBDAV?

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StP

Jr. Member
Posts: 58
Karma: 2

Blocking WEBDAV?

« on: August 07, 2017, 02:20:35 pm »

According to this

http://borncity.com/win/2017/08/07/us-cert-warns-microsoft-windows-lnk-vulnerability/

we should block outgoing SMB and WEBDAV traffic to close some attack vectors which can be used by the vulnerability.

How to block WEBDAV in OPNsense?

Stefan

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fabian

Hero Member
Posts: 2768
Karma: 199
OPNsense Contributor (Language, VPN, Proxy, etc.)

Re: Blocking WEBDAV?

« Reply #1 on: August 07, 2017, 05:33:50 pm »

create a custom acl with the "normal" http verbs (GET, POST, PUT, DELETE, HEAD, PATCH, PUT) and block all which are not using them.

http://www.squid-cache.org/Doc/config/acl/
-> ctrl + f -> method

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StP

Jr. Member
Posts: 58
Karma: 2

Re: Blocking WEBDAV?

« Reply #2 on: August 08, 2017, 09:13:29 am »

Thanks Fabian!

To be honest, I have never before used the Web Proxy. At a first glance I think I have to learn a lot of the basics first before I can use it. Will take some time...

Thanks anyways
Stefan

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