Title

Amazon Linux 2023 system commands must be owned by root. (Cat II impact)

Discussion

If Amazon Linux 2023 were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications.

Check Content

Verify Amazon Linux 2023 system commands contained in the following directories are owned by "root" with the following command: $ sudo find -L /bin /sbin /usr/bin /usr/sbin /usr/libexec /usr/local/bin /usr/local/sbin ! -user root -exec ls -l {} \; If any system commands are found to not be owned by root, this is a finding.

Fix Text

Configure Amazon Linux 2023 so that system commands are protected from unauthorized access. Run the following command, replacing "[FILE]" with any system command file not owned by "root". $ sudo chown root [FILE]

Additional Identifiers

Rule ID: SV-274131r1120381_rule

Vulnerability ID: V-274131

Group Title: SRG-OS-000259-GPOS-00100

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.