SRG-OS-000480-GPOS-00230
The operating system must limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders.
Canonical Source
SV-203783r991592_rule ( from General Purpose Operating System Security Requirements Guide )Description
Users' home directories/folders may contain information of a sensitive nature. Non-privileged users should coordinate any sharing of information with an SA through shared resources.