STIGQter STIGQter: STIG Summary: Canonical Ubuntu 16.04 Security Technical Implementation Guide Version: 1 Release: 3 Benchmark Date: 24 Jan 2020: Successful/unsuccessful uses of the umount command must generate an audit record.

DISA Rule

SV-90377r5_rule

Vulnerability Number

V-75697

Group Title

SRG-OS-000042-GPOS-00020

Rule Version

UBTU-16-020390

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the audit system to generate an audit event for any successful/unsuccessful use of the "umount" command.

Add or update the following rule in the "/etc/audit/audit.rules" file:

-a always,exit -F path=/bin/umount -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged-mount

The audit daemon must be restarted for the changes to take effect. To restart the audit daemon, run the following command:

# sudo systemctl restart auditd.service

Check Contents

Verify that an audit event is generated for any successful/unsuccessful use of the "umount" command.

Check for the following system call being audited by performing the following command to check the file system rules in "/etc/audit/audit.rules":

# sudo grep umount /etc/audit/audit.rules

-a always,exit -F path=/bin/umount -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged-mount

If the command does not return a line, or the line is commented out, this is a finding.

Vulnerability Number

V-75697

Documentable

False

Rule Version

UBTU-16-020390

Severity Override Guidance

Verify that an audit event is generated for any successful/unsuccessful use of the "umount" command.

Check for the following system call being audited by performing the following command to check the file system rules in "/etc/audit/audit.rules":

# sudo grep umount /etc/audit/audit.rules

-a always,exit -F path=/bin/umount -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged-mount

If the command does not return a line, or the line is commented out, this is a finding.

Check Content Reference

M

Target Key

3075

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