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RHEL 9 library files must have mode 755 or less permissive.


Overview

Finding ID Version Rule ID IA Controls Severity
V-257884 RHEL-09-232020 SV-257884r991560_rule Medium
Description
If RHEL 9 allowed 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 RHEL 9 with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs that execute with escalated privileges.
STIG Date
Red Hat Enterprise Linux 9 Security Technical Implementation Guide 2024-06-04

Details

Check Text ( C-61625r925637_chk )
Verify the system-wide shared library files contained in the following directories have mode "755" or less permissive with the following command:

$ sudo find -L /lib /lib64 /usr/lib /usr/lib64 -perm /022 -type f -exec ls -l {} \;

If any system-wide shared library file is found to be group-writable or world-writable, this is a finding.
Fix Text (F-61549r925638_fix)
Configure the library files to be protected from unauthorized access. Run the following command, replacing "[FILE]" with any library file with a mode more permissive than 755.

$ sudo chmod 755 [FILE]