Oracle Linux 8 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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OL 8 must not forward IPv4 source-routed packets.
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 -
OL 8 must not forward IPv6 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 -
OL 8 must not accept router advertisements on all IPv6 interfaces.
Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unn...Rule Medium Severity -
OL 8 must not accept router advertisements on all IPv6 interfaces by default.
Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unn...Rule Medium Severity -
OL 8 must disable access to the network "bpf" syscall from unprivileged processes.
It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooke...Rule Medium Severity -
OL 8 must use reverse path filtering on all IPv4 interfaces.
It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooke...Rule Medium Severity -
The graphical display manager must not be installed on OL 8 unless approved.
Internet services that are not required for system or application processes must not be active to decrease the attack surface of the system. X Windows has a long history of security vulnerabilities...Rule Medium Severity -
OL 8 network interfaces 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 -
OL 8 must not have the "gssproxy" package installed if not required for operational support.
Verify the operating system is configured to disable non-essential capabilities. The most secure way of ensuring a non-essential capability is disabled is to not have the capability installed. W...Rule Medium Severity -
OL 8 library directories must have mode 755 or less permissive.
If OL 8 were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust chan...Rule Medium Severity -
The OL 8 operating system must use a file integrity tool to verify correct operation of all security functions.
Without verification of the security functions, security functions may not operate correctly, and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmwa...Rule Medium Severity -
The OL 8 operating system must not be configured to bypass password requirements for privilege escalation.
Without reauthentication, users may access resources or perform tasks for which they do not have authorization. When operating systems provide the capability to escalate a functional capability, ...Rule Medium Severity -
OL 8 must ensure the password complexity module is enabled in the system-auth file.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity -
OL 8 systems below version 8.4 must ensure the password complexity module in the password-auth file is configured for three retries or less.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity -
OL 8 must not enable IPv4 packet forwarding unless the system is a router.
Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unn...Rule Medium Severity -
OL 8 must be configured to allow sending email notifications of unauthorized configuration changes to designated personnel.
Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to the operating system. Changes to operating system configuratio...Rule Medium Severity
Node 2
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