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OL 9 must log SSH connection attempts and failures to the server.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-271703OL09-00-002340SV-271703r1091821_ruleCCI-000067medium
Description
SSH provides several logging levels with varying amounts of verbosity. "DEBUG" is specifically not recommended other than strictly for debugging SSH communications since it provides so much data that it is difficult to identify important security information. "INFO" or "VERBOSE" level is the basic level that only records login activity of SSH users. In many situations, such as Incident Response, it is important to determine when a particular user was active on a system. The logout record can eliminate those users who disconnected, which helps narrow the field.
STIGDate
Oracle Linux 9 Security Technical Implementation Guide2026-02-17

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

NET-14.1Automated Monitoring & Control
1.00
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (22) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-16Security and Privacy Attributes
1.00
AC-17(1)Monitoring and Control
1.00
AC-2(4)Automated Audit Actions
1.00
AC-3(3)Mandatory Access Control
1.00
AC-6(9)Log Use of Privileged Functions
1.00
AU-10Non-repudiation
1.00
AU-12Audit Record Generation
1.00
AU-14(1)System Start-up
1.00
AU-14(2)Capture and Record Content
1.00
AU-3Content of Audit Records
1.00

+12 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.1.12
1.00
CCI1 mapping
CCI-000067
1.00

Details

Check Text (C-271703r1091821_chk)

Verify that OL 9 logs SSH connection attempts and failures to the server. Check what the SSH daemon's "LogLevel" option is set to with 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, the line is commented out, or is missing, this is a finding.

Fix Text (F-75660r1091820_fix)

Configure OL 9 to log connection attempts add or modify the following line in "/etc/ssh/sshd_config" or in a file in "/etc/ssh/sshd_config.d". LogLevel VERBOSE Restart the SSH daemon for the settings to take effect: $ sudo systemctl restart sshd.service