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

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

Associated with: CCI-000366

SV-99415r1_rule The SLES for vRealize must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt.

Vulnerability 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

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.