Health Insurance Portability and Accountability Act (HIPAA)
Rules and Groups employed by this XCCDF Profile
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Ensure No Daemons are Unconfined by SELinux
Daemons for which the SELinux policy does not contain rules will inherit the context of the parent process. Because daemons are launched during startup and descend from the <code>init</code> proces...Rule Medium Severity -
Configure SELinux Policy
The SELinux <code>targeted</code> policy is appropriate for general-purpose desktops and servers, as well as systems in many other roles. To configure the system to use this policy, add or correct ...Rule Medium Severity -
Ensure SELinux State is Enforcing
The SELinux state should be set to <code><xccdf-1.2:sub idref="xccdf_org.ssgproject.content_value_var_selinux_state" use="legacy"></xccdf-1.2:sub></code> at system boot time. In the file <code>/et...Rule High Severity -
SELinux - Booleans
Enable or Disable runtime customization of SELinux system policies without having to reload or recompile the SELinux policy.Group -
Disable the selinuxuser_execheap SELinux Boolean
By default, the SELinux boolean <code>selinuxuser_execheap</code> is disabled. When enabled this boolean is enabled it allows selinuxusers to execute code from the heap. If this setting is enabled,...Rule Medium Severity -
Enable the selinuxuser_execmod SELinux Boolean
By default, the SELinux boolean <code>selinuxuser_execmod</code> is enabled. If this setting is disabled, it should be enabled. To enable the <code>selinuxuser_execmod</code> SELinux boolean, run ...Rule Medium Severity -
Disable the selinuxuser_execstack SELinux Boolean
By default, the SELinux boolean <code>selinuxuser_execstack</code> is enabled. This setting should be disabled as unconfined executables should not be able to make their stack executable. To disab...Rule Medium Severity -
Services
The best protection against vulnerable software is running less software. This section describes how to review the software which Red Hat Enterprise Linux 7 installs on a system and disable softwar...Group -
Base Services
This section addresses the base services that are installed on a Red Hat Enterprise Linux 7 default installation which are not covered in other sections. Some of these services listen on the networ...Group -
Disable KDump Kernel Crash Analyzer (kdump)
The <code>kdump</code> service provides a kernel crash dump analyzer. It uses the <code>kexec</code> system call to boot a secondary kernel ("capture" kernel) following a system crash, which can lo...Rule Medium Severity -
Cron and At Daemons
The cron and at services are used to allow commands to be executed at a later time. The cron service is required by almost all systems to perform necessary maintenance tasks, while at may or may no...Group -
Enable cron Service
The <code>crond</code> service is used to execute commands at preconfigured times. It is required by almost all systems to perform necessary maintenance tasks, such as notifying root of system acti...Rule Medium Severity -
NFS and RPC
The Network File System is a popular distributed filesystem for the Unix environment, and is very widely deployed. This section discusses the circumstances under which it is possible to disable NF...Group -
Configure NFS Servers
The steps in this section are appropriate for systems which operate as NFS servers.Group -
Use Kerberos Security on All Exports
Using Kerberos on all exported mounts prevents a malicious client or user from impersonating a system user. To cryptography authenticate users to the NFS server, add <code>sec=krb5:krb5i:krb5p</cod...Rule Medium Severity -
Obsolete Services
This section discusses a number of network-visible services which have historically caused problems for system security, and for which disabling or severely limiting the service has been the best a...Group -
Xinetd
The <code>xinetd</code> service acts as a dedicated listener for some network services (mostly, obsolete ones) and can be used to provide access controls and perform some logging. It has been large...Group -
Uninstall xinetd Package
Thexinetd
package can be removed with the following command:$ sudo yum erase xinetd
Rule Low Severity -
Disable xinetd Service
Thexinetd
service can be disabled with the following command:$ sudo systemctl mask --now xinetd.service
Rule Medium Severity -
NIS
The Network Information Service (NIS), also known as 'Yellow Pages' (YP), and its successor NIS+ have been made obsolete by Kerberos, LDAP, and other modern centralized authentication services. NIS...Group
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