STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 must log SSH connection attempts and failures to the server.

DISA Rule

SV-282383r1200129_rule

Vulnerability Number

V-282383

Group Title

SRG-OS-000032-GPOS-00013

Rule Version

TOSS-05-000237

Severity

CAT II

CCI(s)

• CCI-000067 - Employ automated mechanisms to monitor remote access methods.

Weight

10

Fix Recommendation

Configure TOSS 5 to log connection attempts add or modify the following line in "/etc/ssh/sshd_config":

LogLevel VERBOSE

Restart the SSH daemon for the settings to take effect:

$ sudo systemctl restart sshd.service

Check Contents

Verify TOSS 5 logs SSH connection attempts and failures to the server.

Verify what the SSH daemon's "LogLevel" option is set to using the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*loglevel'

LogLevel VERBOSE

If a value of "VERBOSE" is not returned or the line is commented out or missing, this is a finding.

Vulnerability Number

V-282383

Documentable

False

Rule Version

TOSS-05-000237

Severity Override Guidance

Verify TOSS 5 logs SSH connection attempts and failures to the server.

Verify what the SSH daemon's "LogLevel" option is set to using the following command:

$ sudo /usr/sbin/sshd -dd 2>&1 | awk '/filename/ {print $4}' | tr -d '\r' | tr '\n' ' ' | xargs sudo grep -iH '^\s*loglevel'

LogLevel VERBOSE

If a value of "VERBOSE" is not returned or the line is commented out or missing, this is a finding.

Check Content Reference

M

Target Key

5738