Detections
Analytics

1.105 SLES-15-030020

Information

The SUSE operating system must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/shadow.

GROUP ID: V-234901
RULE ID: SV-234901r1009636

Once an attacker establishes initial access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to simply create a new account. Auditing of account creation mitigates this risk.

To address access requirements, many SUSE operating systems may be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements.

Satisfies: SRG-OS-000004-GPOS-00004, SRG-OS-000239-GPOS-00089, SRG-OS-000240-GPOS-00090, SRG-OS-000241-GPOS-00091, SRG-OS-000303-GPOS-00120, SRG-OS-000463-GPOS-00207, SRG-OS-000476-GPOS-00221

Solution

Configure the SUSE operating system to generate an audit record when all modifications to the "/etc/shadow" file occur.

Add or update the following rule to "/etc/audit/rules.d/audit.rules":

-w /etc/shadow -p wa -k account_mod

To reload the rules file, restart the audit daemon:

sudo systemctl restart auditd.service

or issue the following command:

sudo augenrules --load

See Also

https://workbench.cisecurity.org/benchmarks/23779

Item Details

Category: ACCESS CONTROL, AUDIT AND ACCOUNTABILITY

References: 800-53|AC-2(1), 800-53|AC-2(4), 800-53|AU-12c., CAT|II, CCI|CCI-000015, CCI|CCI-000018, CCI|CCI-000172, CCI|CCI-001403, CCI|CCI-002130, CCI|CCI-002132, Rule-ID|SV-234901r1009636_rule, STIG-ID|SLES-15-030020, Vuln-ID|V-234901

Plugin: Unix

Control ID: 9f9d07dd1917becb2b9400d6db1b1274e441ae544d75f411a42a02957e9916b2