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Note

This is an example report template to be used when responding to SCAP Scan results.

The following is a short example from a CentOS 7 scan. You will need to adjust all content as appropriate.

TEMPLATE - SSG Scan - EL 7 STIG

  • Scan Date: 1/1/1970
  • SIMP Version: 6.1.0-RC1
  • SSG Version: 0.1.36
  • Data Stream: ssh-centos7-ds.xml
  • SIMP Enforcement Profile: disa_stig

Terminology:

Finding

Valid issues found by the scanner

Alternate Implementation

Valid implementations per policy that do not match the scan

Exception

Items that will need to be declared as a policy exception for the stated reason

False Positive

Bugs in the scanner that should be reported

Ensure gpgcheck Enabled for Repository Metadata

  • Rule ID: xccdf_org.ssgproject.content_rule_ensure_gpgcheck_repo_metadata
  • Type: Exception
  • Recommend SSG Feedback
    • This should not be a high severity if using TLS
    • This opens potential vulnerabilities to all client systems
    • Discussion ongoing on SSG mailing list and ComplianceAsCode/content#2455

Justification

The way that YUM works means that all GPG keys become trusted by the entire system. Enabling repository metadata signatures globally means that RPMs will be trusted that come from any system with a trusted GPG key and may allow software to be installed on systems that does not come from the vendor.

Configure Periodic Execution of AIDE

  • Rule ID: xccdf_org.ssgproject.content_rule_aide_periodic_cron_checking
  • Type: Alternate Implementation

Notes

We use the Puppet cron resource to add the AIDE rule to the root user's crontab.

System Result

# crontab -l

# Puppet Name: aide_schedule                        5 4 *
* 0 /bin/nice -n 19 /usr/sbin/aide -C

Build and Test AIDE Database

  • Rule ID: xccdf_org.ssgproject.content_rule_aide_build_database
  • Type: False Positive

System Result

# ls /var/lib/aide/
aide.db.gz

Record Attempts to Alter Logon and Logout Events - faillock

  • Rule ID: xccdf_org.ssgproject.content_rule_audit_rules_login_events_faillock
  • Type: Finding

Notes

Marked as a valid finding and tracked as SIMP-4047