Detections
Analytics

1.283 OL09-00-002359

Information

OL 9 SSHD must accept public key authentication.

GROUP ID: V-271721
RULE ID: SV-271721r1091875

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 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-00055

Solution

Configure OL 9 to accept public key authentication by adding or modifying the following line in "/etc/ssh/sshd_config".

PubkeyAuthentication yes

Restart the SSH daemon for the settings to take effect:

$ sudo systemctl restart sshd.service

See Also

https://workbench.cisecurity.org/benchmarks/27024

Item Details

Category: IDENTIFICATION AND AUTHENTICATION

References: 800-53|IA-2(1), 800-53|IA-2(2), CCI|CCI-000765, CCI|CCI-000766, Rule-ID|SV-271721r1091875_rule, STIG-ID|OL09-00-002359, Vuln-ID|V-271721

Plugin: Unix

Control ID: 7fb8f22d6f263ee7f180a7854aab623001874a51ebdbd3d428b012710a9f1025