V-285315

Discussion

Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor authentication requires using two or more factors to achieve authentication. A privileged account is defined as an information system account with authorizations of a privileged user. A DOD common access card (CAC) with DOD-approved PKI is an example of multifactor authentication. Satisfies: SRG-OS-000105-GPOS-00052, SRG-OS-000106-GPOS-00053, SRG-OS-000107-GPOS-00054, SRG-OS-000108-GPOS-00056

Check Content

If OpenSSH is not installed on the system, this requirement is not applicable.
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If the system administrator demonstrates the use of an approved alternate multifactor authentication method, this requirement is not applicable.

Verify the system accepts public key encryption with the following command:
 
C:\ > Get-Content "$env:ProgramData\ssh\sshd_config" | Select-String -Pattern '^\s*PubkeyAuthentication'

PubkeyAuthentication yes
 
If "PubkeyAuthentication" is set to "no", the line is commented out, or the line is missing, this is a finding.