Title

Successful and unsuccessful logins and logouts must be logged. (Cat II impact)

Discussion

Monitoring and recording successful and unsuccessful logins assists in tracking unauthorized access to the system. Without this logging, the ability to track unauthorized activity to specific user accounts may be diminished.

Check Content

List the logged successful logons to determine if successful logons are being logged. # last -R | more List the logged unsuccessful logons to determine if unsuccessful logons are being logged. # lastb -R | more If logs do not contain successful and unsuccessful logins, this is a finding.

Fix Text

Verify that login logs are handled correctly in the /etc/syslog.conf file. Verify that service startup scripts for syslog and (w/b)tmp (if present) are enabled. NOTE: Also examine the syslog.conf file for any references to remote log hosts if last/lastb produce no results. # cat /etc/syslog.conf | tr '\011' ' ' | tr -s ' ' | sed -e 's/^[ \t]*//' | grep -v '^#' | grep "\@"

Additional Identifiers

Rule ID: SV-27082r1_rule

Vulnerability ID: V-765

Group Title: GEN000440

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.