Title

Ubuntu OS library files must be owned by "root". (Cat II impact)

Discussion

If the operating system were to allow any user to make changes to software libraries, then those changes could 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 that 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 the systemwide shared library files contained in the directories "/lib", "/lib64", and "/usr/lib" are owned by "root" by using the following command: $ sudo find /lib /usr/lib /lib64 ! -user root -type f -exec stat -c "%n %U" '{}' \; If any systemwide library file is returned, this is a finding.

Fix Text

Configure Ubuntu OS library files to be protected from unauthorized access. Run the following command: $ sudo find /lib /usr/lib /lib64 ! -user root -type f -exec chown root '{}' \;

Additional Identifiers

Rule ID: SV-275593r1147829_rule

Vulnerability ID: V-275593

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

Expert Comments

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