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← Back to Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

V-282537

CAT II (Medium)

TOSS 5 library files must have mode 755 or less permissive.

Rule ID

SV-282537r1201581_rule

STIG

Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-001499

Discussion

If TOSS 5 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 TOSS 5 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.

Check Content

Verify the systemwide 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 systemwide shared library file is found to be group-writable or world-writable, this is a finding.

Fix Text

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]