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The operating system must remove all software components after updated versions have been installed.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-71987 | RHEL-07-020200 | SV-86611r1_rule | Low |
| Description |
|---|
| Previous versions of software components that are not removed from the information system after updates have been installed may be exploited by adversaries. Some information technology products may remove older versions of software automatically from the information system. |
| STIG | Date |
|---|---|
| Red Hat Enterprise Linux 7 Security Technical Implementation Guide | 2017-07-08 |
Details
| Check Text ( C-72219r1_chk ) |
|---|
| Verify the operating system removes all software components after updated versions have been installed. Check if yum is configured to remove unneeded packages with the following command: # grep -i clean_requirements_on_remove /etc/yum.conf clean_requirements_on_remove=1 If "clean_requirements_on_remove" is not set to "1", "True", or "yes", or is not set in "/etc/yum.conf", this is a finding. |
| Fix Text (F-78339r1_fix) |
|---|
| Configure the operating system to remove all software components after updated versions have been installed. Set the "clean_requirements_on_remove" option to "1" in the "/etc/yum.conf" file: clean_requirements_on_remove=1 |