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V-239596

CAT III (Low)

The SLES for vRealize must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur.

Rule ID

SV-239596r852593_rule

STIG

VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide

Version

V2R2

CCIs

CCI-002238

Discussion

By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute forcing, is reduced. Limits are imposed by locking the account.

Check Content

Check the "pam_tally2" configuration:

# more /etc/pam.d/common-auth

Confirm the following line is configured:

auth required pam_tally2.so deny=3 onerr=fail even_deny_root unlock_ti
me=86400 root_unlock_time=300

# more /etc/pam.d/common-account

Confirm the following line is configured:

account required pam_tally2.so

If no such lines are found, this is a finding.

Fix Text

Edit "/etc/pam.d/common-auth" file and add the following line:

auth required pam_tally2.so deny=3 onerr=fail even_deny_root unlock_time=86400 root_unlock_time=300 

Edit "/etc/pam.d/common-account" file and add the following line:

account required pam_tally2.so