The network device must prohibit password reuse for a minimum of five generations.

From Network Device Management Security Requirements Guide

Associated with: CCI-000200

SV-69363r1_rule The network device must prohibit password reuse for a minimum of five generations.

Vulnerability discussion

Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. To meet password policy requirements, passwords need to be changed at specific policy-based intervals. If the network device allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements.

Check content

Determine if the network device or its associated authentication server prohibits password reuse for a minimum of five generations. This requirement may be verified by demonstration or configuration review. If the network device or its associated authentication server does not prohibit password reuse for a minimum of five generations, this is a finding.

Fix text

Configure the network device or its associated authentication server to prohibit password reuse for a minimum of five generations.

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