| #!/bin/bash |
| # Copyright 2021 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # https://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| ## Section: 5.3.3 Ensure password reuse is limited (Not Scored) ## |
| # Check if the changes have already been made |
| if ! grep -q \ |
| "password[[:space:]]*required[[:space:]]*pam_pwhistory.so[[:space:]]*remember=5" \ |
| /etc/pam.d/system-auth; then |
| sed -i \ |
| '0,/password/s//password required pam_pwhistory.so remember=5\n&/' \ |
| /etc/pam.d/system-auth |
| fi |
| if ! grep -q \ |
| "password[[:space:]]*required[[:space:]]*pam_unix.so[[:space:]]*remember=5" \ |
| /etc/pam.d/system-auth; then |
| sed -i 's/password.*pam_unix.so/& remember=5/' /etc/pam.d/system-auth |
| fi |
