SSMC must allocate audit record storage capacity to store at least one weeks' worth of audit records, when audit records are not immediately sent to a central audit record storage facility.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-255250	SRG-OS-000341-GPOS-00132	SSMC-OS-030140	SV-255250r958752_rule	2024-08-27	2

Description
In order to ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initial installation of the operating system.

ℹ️ Check
Verify SSMC allocates audit record storage capacity to store at least one weeks' worth of audit records, when audit records are not immediately sent to remote logging server by doing the following: 1. Log on to SSMC appliance as ssmcadmin. Press "X" to escape to general bash shell. 2. Execute the following command: $ sudo /ssmc/bin/config_security.sh -o remote_syslog_appliance -a status \| grep ssmc.rsyslog.queue.maxdiskspace ssmc.rsyslog.queue.maxdiskspace=6 If the command output does not read "ssmc.rsyslog.queue.maxdiskspace=6", this is a finding.

ℹ️ Check

Verify SSMC allocates audit record storage capacity to store at least one weeks' worth of audit records, when audit records are not immediately sent to remote logging server by doing the following: 1. Log on to SSMC appliance as ssmcadmin. Press "X" to escape to general bash shell. 2. Execute the following command: $ sudo /ssmc/bin/config_security.sh -o remote_syslog_appliance -a status | grep ssmc.rsyslog.queue.maxdiskspace ssmc.rsyslog.queue.maxdiskspace=6 If the command output does not read "ssmc.rsyslog.queue.maxdiskspace=6", this is a finding.

✔️ Fix
Configure SSMC to allocate audit record storage capacity to store at least one week's worth of audit records. Perform the following to do so: 1. Configure smtp parameters in /ssmc/conf/security_config.properties like below (use vi editor) - ssmc.rsyslog.server.host=<rsyslog_server> ssmc.rsyslog.server.port=<rsyslog_port> ssmc.rsyslog.server.protocol=tcp ssmc.rsyslog.server.tls-enabled=1 ssmc.rsyslog.cert.caroot=<ca_root_cert_pem> ssmc.rsyslog.cert.clientcert=<ssmc_client_cert_pem> ssmc.rsyslog.cert.clientkey=<ssmc_client_key_pem> ssmc.rsyslog.server.authMode=<x509/name \| x509/certvalid> ssmc.rsyslog.server.permittedPeers=<cn_of_rsyslog_server> ssmc.rsyslog.server.device=<ens160\|ens192\|eth0\|eth1> ssmc.rsyslog.queue.maxdiskspace=6 ssmc.rsyslog.smtp.alert=true ssmc.rsyslog.smtp.server=<server_ip> ssmc.rsyslog.smtp.port=25 ssmc.rsyslog.smtp.recipient=["id1@domain","id2@domain"] ssmc.rsyslog.smtp.notify-interval=300 ssmc.rsyslog.smtp.mailFrom=id@domain 2. Execute the following command to commit configuration and activate the service: $ sudo /ssmc/bin/config_security.sh -o remote_syslog_appliance -a set -f

✔️ Fix

Configure SSMC to allocate audit record storage capacity to store at least one week's worth of audit records. Perform the following to do so: 1. Configure smtp parameters in /ssmc/conf/security_config.properties like below (use vi editor) - ssmc.rsyslog.server.host=<rsyslog_server> ssmc.rsyslog.server.port=<rsyslog_port> ssmc.rsyslog.server.protocol=tcp ssmc.rsyslog.server.tls-enabled=1 ssmc.rsyslog.cert.caroot=<ca_root_cert_pem> ssmc.rsyslog.cert.clientcert=<ssmc_client_cert_pem> ssmc.rsyslog.cert.clientkey=<ssmc_client_key_pem> ssmc.rsyslog.server.authMode=<x509/name | x509/certvalid> ssmc.rsyslog.server.permittedPeers=<cn_of_rsyslog_server> ssmc.rsyslog.server.device=<ens160|ens192|eth0|eth1> ssmc.rsyslog.queue.maxdiskspace=6 ssmc.rsyslog.smtp.alert=true ssmc.rsyslog.smtp.server=<server_ip> ssmc.rsyslog.smtp.port=25 ssmc.rsyslog.smtp.recipient=["id1@domain","id2@domain"] ssmc.rsyslog.smtp.notify-interval=300 ssmc.rsyslog.smtp.mailFrom=id@domain 2. Execute the following command to commit configuration and activate the service: $ sudo /ssmc/bin/config_security.sh -o remote_syslog_appliance -a set -f