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fix folder permissions for programdata\ssh during server install #549

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merged 12 commits into from
Feb 5, 2022

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tgauth
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@tgauth tgauth commented Jan 3, 2022

PowerShell/Win32-OpenSSH#1900

  • During sshd install, if ssh folder already exists, set permissions to the same settings as when folder is initially created in wmain_sshd.c. Essentially, ensure folder and any existing files, with few exceptions, are set to these permissions: owner: System or Admins; full access: System, Admins; read or readandexecute/synchronize: Authenticated Users
  • Any existing private key files are given the following permissions: owner: System or Admins; full access: System, Admins

@tgauth tgauth requested a review from bagajjal January 3, 2022 17:37
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.

# Folder permission is FullAccess to System and Builtin/Admins and read only access to Authenticated users, if user allows
Repair-SshFolderFilePermission -FilePath $sshProgDataPath @psBoundParameters
# All files besides private key files and log folder/files should have same permissions as ssh folder, if user allows
$restricted_files = @("ssh_host_dsa_key", "ssh_host_ecdsa_key", "ssh_host_ed25519_key", "ssh_host_rsa_key", "*.logs")
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log files can have read only permissions for authenticated users

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Ok - I think the log files inherit from the log folder.
When the log folder is created by SSHD, it only allows Full Access to System & Admins.

I think either situation is permissible. Having a separate check for the log files/folders that permits read access for users, but won't add read access to users, if it has not already been granted might work best?

@tgauth tgauth requested a review from bagajjal February 2, 2022 22:56
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3 participants