Windows update URLs with IP addresses show up as unknown

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Windows update URLs with IP addresses show up as unknown

L0 Member

Hi, we have set our PA-440 (PAN-OS 10.1) to block all unknown URLs, which works amazingly well. However, I am seeing more and more URLs getting blocked which are probably for Windows updates that contain an IP address like

151.139.87.98/phf/c/doc/ph/prod5/msdownload/update/software/defu/2023/12/1024/am_delta_patch_1.403.99.0_ccea2ad383853e202858ba597af0a5ad45ceba41.exe.json?cacheHostOrigin=download.windowsupdate.com

This IP address is owned by StackPath, probably a CDN for Microsoft.

Are you seeing this too? What's the smartest way of dealing with this?

Cheers,

    Andy Lietz, OrtmannTeam GmbH, Munich, Germany

1 accepted solution

Accepted Solutions

Cyber Elite
Cyber Elite

Hello,

We also see this as MS spreads their updates all over. Just make sure you are allowing the following:

https://live.paloaltonetworks.com/t5/vm-series-in-the-private-cloud/allow-to-update-windows/td-p/557...

If one is blocked Windows tries a different one.

 

Regards,

View solution in original post

4 REPLIES 4

Hi @ortmannteam ,

Based on my experience even if this is CDN for Microsoft update, I would expect to see a hostname/domain and not URL request to specific IP address.

 

I don't see such behaviour, but according to other vendor it seems this is something new

aleksandarastardzhiev_0-1702038913289.png

 

I would recommend to submit the whole URL you detect to PAN   for recategorization

https://urlfiltering.paloaltonetworks.com/query/ - check the verdict and then select Request Change

 

Cyber Elite
Cyber Elite

Hello,

We also see this as MS spreads their updates all over. Just make sure you are allowing the following:

https://live.paloaltonetworks.com/t5/vm-series-in-the-private-cloud/allow-to-update-windows/td-p/557...

If one is blocked Windows tries a different one.

 

Regards,

L0 Member

Hi @OtakarKlier, thanks for pointing out the Windows update URL list for me. I've allowed those and will see whether Windows still uses addresses with IPs for its upgrades.

Retired Member
Not applicable

thank you this was helpful!

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