STIGQter: STIG Summary: Riverbed NetIM OS Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 11 Sep 2025:

Ubuntu OS must use strong authenticators in establishing nonlocal maintenance and diagnostic sessions.

DISA Rule

SV-275627r1147931_rule

Vulnerability Number

V-275627

Group Title

SRG-OS-000125-GPOS-00065

Rule Version

RIIM-OS-255065

Severity

CAT I

CCI(s)

• CCI-000877 - Employ strong authentication in the establishment of nonlocal maintenance and diagnostic sessions.

Weight

10

Fix Recommendation

Configure Ubuntu OS to use strong authentication when establishing nonlocal maintenance and diagnostic sessions.

Add or modify the following line to /etc/ssh/sshd_config:

UsePAM yes

Restart the SSH server for changes to take effect:

$ sudo systemctl restart sshd.service

Check Contents

Verify Ubuntu OS is configured to use strong authenticators in the establishment of nonlocal maintenance and diagnostic maintenance by using the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH 'usepam'
/etc/ssh/sshd_config:UsePAM yes

If "UsePAM" is not set to "yes", is commented out, is missing, or conflicting results are returned, this is a finding.

Vulnerability Number

V-275627

Documentable

False

Rule Version

RIIM-OS-255065

Severity Override Guidance

Verify Ubuntu OS is configured to use strong authenticators in the establishment of nonlocal maintenance and diagnostic maintenance by using the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH 'usepam'
/etc/ssh/sshd_config:UsePAM yes

If "UsePAM" is not set to "yes", is commented out, is missing, or conflicting results are returned, this is a finding.

Check Content Reference

M

Target Key

5706