III - Administrative Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must be configured to use TCP syncookies.
<VulnDiscussion>Denial of service (DoS) is a condition when a resource is not available for legitimate users. When this occurs, the organizat...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must ignore Internet Protocol version 4 (IPv4) Internet Control Message Protocol (ICMP) redirect messages.
<VulnDiscussion>ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. Thes...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must not forward Internet Protocol version 4 (IPv4) source-routed packets.
<VulnDiscussion>Source-routed packets allow the source of the packet to suggest routers forward the packet along a different path than config...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must log IPv4 packets with impossible addresses.
<VulnDiscussion>The presence of "martian" packets (which have impossible addresses) as well as spoofed packets, source-routed packets, and re...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
RHEL 9 must log IPv4 packets with impossible addresses by default.
<VulnDiscussion>The presence of "martian" packets (which have impossible addresses) as well as spoofed packets, source-routed packets, and re...Rule Medium Severity
Node 2
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