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V-239647

CAT II (Medium)

The SLES for vRealize must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.

Rule ID

SV-239647r662392_rule

STIG

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

Version

V2R2

CCIs

CCI-000366

Discussion

Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account.

Check Content

Check the value of the "FAIL_DELAY" variable and the ability to use it:

# grep FAIL_DELAY /etc/login.defs 

The following result should be displayed:

FAIL_DELAY 4

If the value does not exist, or is less than "4", this is a finding.

Check for the use of "pam_faildelay":

# grep pam_faildelay /etc/pam.d/common-auth*

The following result should be displayed:

/etc/pam.d/common-auth:auth optional pam_faildelay.so

If the "pam_faildelay.so" module is not listed or is commented out, this is a finding.

Fix Text

Add the "pam_faildelay" module and set the "FAIL_DELAY" variable.

Edit the "/etc/login.defs" file and set the value of the "FAIL_DELAY" variable to "4" or more.

Edit "/etc/pam.d/common-auth" and add a "pam_faildelay" entry if one does not exist, such as: 

auth optional pam_faildelay.so