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Don or Ron

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10 years ago

DO

Don or Ron

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September 23rd, 2016 09:00

Insecure Windows Service Permissions

I have a Latitude 3570 that has been audited for Cyber Essentials compliance. The laptop has failed with the high risk vulnerability, "At least one improperly configured Windows service may have a privilege escalation vulnerability."

The service is DellRctlService and Authenticate Users have inherited file write permission to c:\dell\sytem64folder\dellrctlservice.exe.

The solution to this vulnerability is:Ensure the groups [Everyone, Users, Domain Users, Authenticated Users] do not have permissions to modify or
write service executables. Additionally, ensure these groups do not
have Full Control permission to any directories that contain service
executables.

Ref: www.nessus.org/u

Will changing the Authenticated Users permission to explicit read only be detrimental to the service?

  • Jesse L (retired)

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    Posted September 26th, 2016 08:00

    Don or Ron,

    I do not see where changing the permissions would have any issues. If it does, you can revert back to the previous setting.

     

    Jesse L (retired)

  • Jamesy281

    3 Posts

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    Posted June 1st, 2018 01:00

    Hi Jesse,

     

    I realise this is an old post, but I to have the same vulnerability reported in Nessus. Can you please confirm for me exactly what this service is/ does? I have read conflicting articles about it's function. I would like to remove it altogether but I want to make sure it will not cause interruption to service for the users.

     

    Cheers,

    Jamesy