Title

SLEM 5 must have directories that contain system commands set to a mode of 755 or less permissive. (Cat II impact)

Discussion

If SLEM 5 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 SLEM 5 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 must be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications.

Check Content

Verify that the system command directories have mode "755" or less permissive with the following command: > find -L /usr/local/bin /usr/local/sbin -perm /022 -type d -exec stat -c "%n %a" '{}' \; If any directories are found to be group-writable or world-writable, this is a finding.

Fix Text

Configure the system commands to be protected from unauthorized access. Run the following command: > sudo find -L /usr/local/bin /usr/local/sbin -perm /022 -type f -exec chmod 755 '{}' \; > sudo transactional-update shell > sudo find -L /bin /sbin /usr/bin /usr/sbin -perm /022 -type f -exec chmod 755 '{}' \; > exit > sudo reboot

Additional Identifiers

Rule ID: SV-261287r996341_rule

Vulnerability ID: V-261287

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.