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mattyb90235's avatar
mattyb90235
Copper Contributor
Jan 30, 2024

Prnproc$ Share on Windows Print Server

Hi all, I was wondering if anyone had some information in regards to the pronproc$ share on Windows print servers? I am running a Windows Server 2019 instance and had the share flag as a potential vulnerability for allowing read & execute on the share. From what I can see the built-in users group has this permission on the share. Is this share something the can be locked down for privileges or will it break the functionality of the server's services?

security
Windows Server

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  • Anonymous's avatar
    Anonymous
    Jan 31, 2024

    mattyb90235 please consult the recommendations published in the context of CVEs "Printing Nightmare". Microsoft provided guidance how to improve security on Print servers, including permissions, Group Policies. Also guidance when to forcefully disable printing capabilities for good, when not needed.

    Hope this give you a hint. 

    https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34527

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