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7.2.11 Ensure all files and directories in the local interactive user home directory are group-owned by a group that the user is a member of

Information

The operating system must be configured so that all files and directories contained in local interactive user home directories are group-owned by a group of which the home directory owner is a member.

If a local interactive user's files are group-owned by a group of which the user is not a member, unintended users may be able to access them.

NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.

Solution

Change the group of a local interactive user's files and directories to a group that the interactive user is a member. To change the group owner of a local interactive user's files and directories, use the following command:

Note: The example will be for the user smithj, who has a home directory of "/home/smithj" and is a member of the users group.

# chgrp smithj /home/smithj/<file or directory>

See Also

https://workbench.cisecurity.org/benchmarks/19886

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CSCv7|14.6, Rule-ID|SV-244532r743845_rule, Vuln-ID|V-244532

Plugin: Unix

Control ID: 09cc28361eac2adda2eef820d13ac59e6b09bc1f56d31faa0a0a213fd2a3d13a