CIS SUSE Linux Enterprise 15 Benchmark for Level 1 - Workstation
Rules and Groups employed by this XCCDF Profile
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Ensure Unnecessary Services and Ports Are Not Accepted
Services and ports can be accepted or explicitly rejected or dropped by a zone. For every zone, a default behavior can be set that handles incoming...Rule Medium Severity -
Inspect and Activate Default firewalld Rules
Firewalls can be used to separate networks into different zones based on the level of trust the user has decided to place on the devices and traffi...Group -
Install firewalld Package
Thefirewalld
package can be installed with the following command:$ sudo zypper install firewalld
Rule Medium Severity -
Verify firewalld Enabled
Thefirewalld
service can be enabled with the following command:$ sudo systemctl enable firewalld.service
Rule Medium Severity -
Strengthen the Default Ruleset
The default rules can be strengthened. The system scripts that activate the firewall rules expect them to be defined in configuration files under t...Group -
Ensure firewall rules exist for all open ports
Any ports that have been opened on non-loopback addresses need firewall rules to govern traffic.Rule Medium Severity -
Set Default firewalld Zone for Incoming Packets
To set the default zone to <code>drop</code> for the built-in default zone which processes incoming IPv4 and IPv6 packets, modify the following lin...Rule Medium Severity -
iptables and ip6tables
A host-based firewall called <code>netfilter</code> is included as part of the Linux kernel distributed with the system. It is activated by default...Group -
Install iptables Package
Theiptables
package can be installed with the following command:$ sudo zypper install iptables
Rule Medium Severity -
Ensure iptables are flushed
nftables is a replacement for iptables, ip6tables, ebtables and arptablesRule Medium Severity
Node 2
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Capacity
Modules