UBTU-20-010458 - The Ubuntu operating system must have system commands group-owned by root or a system account.

Information

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

Solution

Configure the system commands to be protected from unauthorized access. Run the following command, replacing '[FILE]' with any system command file not group-owned by 'root' or a required system account:

$ sudo chgrp root [FILE]

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_CAN_Ubuntu_20-04_LTS_V1R12_STIG.zip

Item Details

References: CAT|II, CCI|CCI-001499, Rule-ID|SV-238378r832971_rule, STIG-ID|UBTU-20-010458, Vuln-ID|V-238378

Plugin: Unix

Control ID: 458f3c86eb2a8b42e34c877f0a487ef1628bbbf27c3a8649979bcb1791f11b8a