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← Back to Virtual Machine Manager Security Requirements Guide

V-207375

CAT II (Medium)

The VMM must require the change of at least eight of the total number of characters when passwords are changed.

Rule ID

SV-207375r984198_rule

STIG

Virtual Machine Manager Security Requirements Guide

Version

V2R3

CCIs

CCI-004066

Discussion

If the VMM allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different.

Check Content

Verify the VMM requires the change of at least eight of the total number of characters when passwords are changed.

If it does not, this is a finding.

Fix Text

Configure the VMM to require the change of at least eight of the total number of characters when passwords are changed.