II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must use a reverse-path filter for IPv4 network traffic when possible on all interfaces.
Enabling reverse path filtering drops packets with invalid source addresses received on the interface. It should not be used on systems that are routers for complicated networks, but is helpful fo...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must use a reverse-path filter for IPv4 network traffic when possible by default.
Enabling reverse path filtering drops packets with invalid source addresses received on the interface. It should not be used on systems which are routers for complicated networks, but is helpful fo...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must not forward Internet Protocol version 4 (IPv4) source-routed packets by default.
Source-routed packets allow the source of the packet to suggest that routers forward the packet along a different path than configured on the router, which can be used to bypass network security me...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must not respond to Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) echoes sent to a broadcast address.
Responding to broadcast (ICMP) echoes facilitates network mapping and provides a vector for amplification attacks.Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must prevent Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages from being accepted.
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An ill...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must ignore Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages.
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages modify the host's route table and are unauthenticated. An ill...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must not allow interfaces to perform Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirects by default.
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table, possibly r...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must not send Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirects.
ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table, possibly r...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
Network interfaces configured on The Oracle Linux operating system must not be in promiscuous mode.
Network interfaces in promiscuous mode allow for the capture of all network traffic visible to the system. If unauthorized individuals can access these applications, it may allow them to collect in...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
Group -
The Oracle Linux operating system must be configured to prevent unrestricted mail relaying.
If unrestricted mail relaying is permitted, unauthorized senders could use this host as a mail relay for the purpose of sending spam or other unauthorized activity.Rule Medium Severity
Node 2
The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.