The system must use and update a DoD-approved virus scan program.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-12765	GEN006640	SV-45967r1_rule		Medium

Description
Virus scanning software can be used to protect a system from penetration from computer viruses and to limit their spread through intermediate systems. The virus scanning software should be configured to perform scans dynamically on accessed files. If this capability is not available, the system must be configured to scan, at a minimum, all altered files on the system on a daily basis. If the system processes inbound SMTP mail, the virus scanner must be configured to scan all received mail.

Description

Virus scanning software can be used to protect a system from penetration from computer viruses and to limit their spread through intermediate systems. The virus scanning software should be configured to perform scans dynamically on accessed files. If this capability is not available, the system must be configured to scan, at a minimum, all altered files on the system on a daily basis. If the system processes inbound SMTP mail, the virus scanner must be configured to scan all received mail.

STIG	Date
SUSE Linux Enterprise Server v11 for System z	2016-12-20

Details

Check Text ( C-43249r1_chk )
Check for the existence of a cron job to execute the McAfee command line scan tool (uvscan) daily. Other tools may be available but will have to be manually reviewed if they are installed. In addition, the definitions files should not be older than 7 days. Check if uvscan scheduled to run: # grep uvscan /var/spool/cron/* # grep uvscan /etc/cron.d/* # grep uvscan /etc/cron.daily/* # grep uvscan /etc/cron.hourly/* # grep uvscan /etc/cron.monthly/* # grep uvscan /etc/cron.weekly/* If a virus scanner is not being run daily and an exception has not been documented with the IAO, this is a finding. Perform the following command to ensure the virus definition signature files are not older than 7 days. The default uvscan install directory is /usr/local/uvscan. # cd # ls -la avvscan.dat avvnames.dat avvclean.dat If the virus definitions are older than 7 days, this is a finding.

Check Text ( C-43249r1_chk )

Check for the existence of a cron job to execute the McAfee command line scan tool (uvscan) daily. Other tools may be available but will have to be manually reviewed if they are installed. In addition, the definitions files should not be older than 7 days.

Check if uvscan scheduled to run:
# grep uvscan /var/spool/cron/*
# grep uvscan /etc/cron.d/*
# grep uvscan /etc/cron.daily/*
# grep uvscan /etc/cron.hourly/*
# grep uvscan /etc/cron.monthly/*
# grep uvscan /etc/cron.weekly/*

If a virus scanner is not being run daily and an exception has not been documented with the IAO, this is a finding.

Perform the following command to ensure the virus definition signature files are not older than 7 days.
The default uvscan install directory is /usr/local/uvscan.

# cd
# ls -la avvscan.dat avvnames.dat avvclean.dat

If the virus definitions are older than 7 days, this is a finding.

Fix Text (F-39332r1_fix)
Install McAfee command line virus scan tool, or an appropriate alternative. Ensure the virus signature definition files are no older than 7 days. Configure the system to run a virus scan on altered files dynamically or daily. If daily scans impede operations, justify, document, and obtain IAO approval for alternate scheduling.