The operating system must generate audit records when successful/unsuccessful attempts to access/modify privileges occur.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-67657	AOSX-11-002100	SV-82147r1_rule		Medium

Description
Frequently, an attacker that successfully gains access to a system has only gained access to an account with limited privileges, such as a guest account or a service account. The attacker must attempt to change to another user account with normal or elevated privileges in order to proceed. Auditing successful and unsuccessful attempts to switch to another user account and the escalation of privileges mitigates this risk. Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000462-GPOS-00206

Description

Frequently, an attacker that successfully gains access to a system has only gained access to an account with limited privileges, such as a guest account or a service account. The attacker must attempt to change to another user account with normal or elevated privileges in order to proceed. Auditing successful and unsuccessful attempts to switch to another user account and the escalation of privileges mitigates this risk. Satisfies: SRG-OS-000064-GPOS-00033, SRG-OS-000462-GPOS-00206

STIG	Date
Apple OS X 10.11 Security Technical Implementation Guide	2017-07-11

Details

Check Text ( C-68223r2_chk )
In order to view the currently configured flags for the audit daemon, run the following command: /usr/bin/sudo /usr/bin/grep ^flags /etc/security/audit_control If "lo" is not listed in the result of the check, this is a finding.

Fix Text (F-73771r2_fix)
To make sure the appropriate flags are enabled for auditing, run the following command: /usr/bin/sudo sed -i.bak '/^flags/ s/$/,lo/' /etc/security/audit_control; /usr/bin/sudo /usr/sbin/audit -s A text editor may also be used to implement the required updates to the "/etc/security/audit_control" file.