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SLES-12-030030 - The SUSE operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services as defined in the Ports, Protocols, and Services Management (PPSM) Category Assignments List (CAL) and vulnerability assessments.

Information

To prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems.

SUSE operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component.

To support the requirements and principles of least functionality, the SUSE operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or address authorized quality-of-life issues.

Satisfies: SRG-OS-000096-GPOS-00050, SRG-OS-000297-GPOS-00115, SRG-OS-000480-GPOS-00231, SRG-OS-000480-GPOS-00232

Solution

Configure the SUSE operating system is configured to prohibit or restrict the use of functions, ports, protocols, and/or services as defined in the Ports, Protocols, and Services Management (PPSM) Category Assignments List (CAL) and vulnerability assessments.

Add/modify /etc/sysconfig/SuSEfirewall2 file to comply with the Ports, Protocols, and Services Management (PPSM) Category Assignments List (CAL).

Enable the 'SuSEfirewall2.service' by running the following command:

# systemctl enable SuSEfirewall2.service

Start the 'SuSEfirewall2.service' by running the following command:

# systemctl start SuSEfirewall2.service

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_SLES_12_V2R13_STIG.zip

Item Details

Category: ACCESS CONTROL, SECURITY ASSESSMENT AND AUTHORIZATION, CONFIGURATION MANAGEMENT

References: 800-53|AC-17(1), 800-53|CA-3(5), 800-53|CM-7b., CAT|II, CCI|CCI-000382, CCI|CCI-002080, CCI|CCI-002314, Rule-ID|SV-217261r854152_rule, STIG-ID|SLES-12-030030, STIG-Legacy|SV-92131, STIG-Legacy|V-77435, Vuln-ID|V-217261

Plugin: Unix

Control ID: 949e10fd5cb482100da1ca526d1b5e5a552d581222ee8e07f43743a023dd3d85