Oracle Linux 7 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Oracle Linux operating system must be configured so that the Datagram Congestion Control Protocol (DCCP) kernel module is disabled unless required.
<VulnDiscussion>Disabling DCCP protects the system against exploitation of any flaws in the protocol implementation.</VulnDiscussion>&l...Rule Medium Severity -
SRG-OS-000114-GPOS-00059
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must disable the file system automounter unless required.
<VulnDiscussion>Automatically mounting file systems permits easy introduction of unknown devices, thereby facilitating malicious activity. S...Rule Medium Severity -
SRG-OS-000437-GPOS-00194
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must remove all software components after updated versions have been installed.
<VulnDiscussion>Previous versions of software components that are not removed from the information system after updates have been installed m...Rule Low Severity -
SRG-OS-000445-GPOS-00199
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must enable SELinux.
<VulnDiscussion>Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed...Rule Medium Severity -
The Oracle Linux operating system must be configured so that the x86 Ctrl-Alt-Delete key sequence is disabled on the command line.
<VulnDiscussion>A locally logged-on user who presses Ctrl-Alt-Delete when at the console, can reboot the system. If accidentally pressed, as ...Rule High Severity -
SRG-OS-000480-GPOS-00228
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files.
<VulnDiscussion>Setting the most restrictive default permissions ensures that when new accounts are created, they do not have unnecessary acc...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must be a vendor supported release.
<VulnDiscussion>An operating system release is considered "supported" if the vendor continues to provide security patches for the product. Wi...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system security patches and updates must be installed and up to date.
<VulnDiscussion>Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information techn...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not have unnecessary accounts.
<VulnDiscussion>Accounts providing no operational purpose provide additional opportunities for system compromise. Unnecessary accounts includ...Rule Medium Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must be configured so that all Group Identifiers (GIDs) referenced in the /etc/passwd file are defined in the /etc/group file.
<VulnDiscussion>If a user is assigned the GID of a group not existing on the system, and a group with the GID is subsequently created, the us...Rule Low Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must be configured so that all files and directories have a valid group owner.
<VulnDiscussion>Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as ...Rule Medium Severity
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