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 delay between logon prompts following a failed console logon attempt is at least four seconds.
<VulnDiscussion>Configuring the operating system to implement organization-wide security implementation guides and security checklists verifi...Rule Medium Severity -
SRG-OS-000480-GPOS-00229
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not allow an unattended or automatic logon to the system via a graphical user interface.
<VulnDiscussion>Failure to restrict system access to authenticated users negatively impacts operating system security.</VulnDiscussion>...Rule High Severity -
SRG-OS-000480-GPOS-00229
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not allow an unrestricted logon to the system.
<VulnDiscussion>Failure to restrict system access to authenticated users negatively impacts operating system security.</VulnDiscussion>...Rule High Severity -
SRG-OS-000480-GPOS-00229
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not allow users to override SSH environment variables.
<VulnDiscussion>Failure to restrict system access to authenticated users negatively impacts operating system security.</VulnDiscussion>...Rule Medium Severity -
SRG-OS-000480-GPOS-00229
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not allow a non-certificate trusted host SSH logon to the system.
<VulnDiscussion>Failure to restrict system access to authenticated users negatively impacts operating system security.</VulnDiscussion>...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must require authentication upon booting into single-user and maintenance modes.
<VulnDiscussion>If the system does not require valid root authentication before it boots into single-user or maintenance mode, anyone who inv...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Oracle Linux operating systems version 7.2 or newer with a Basic Input/Output System (BIOS) must require authentication upon booting into single-user and maintenance modes.
<VulnDiscussion>If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes ...Rule High Severity -
SRG-OS-000080-GPOS-00048
<GroupDescription></GroupDescription>Group -
Oracle Linux operating systems version 7.2 or newer using Unified Extensible Firmware Interface (UEFI) must require authentication upon booting into single-user and maintenance modes.
<VulnDiscussion>If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes ...Rule High Severity -
SRG-OS-000104-GPOS-00051
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must uniquely identify and must authenticate organizational users (or processes acting on behalf of organizational users) using multifactor authentication.
<VulnDiscussion>To ensure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to pre...Rule Medium Severity -
SRG-OS-000095-GPOS-00049
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not have the rsh-server package installed.
<VulnDiscussion>It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission ob...Rule High Severity -
SRG-OS-000095-GPOS-00049
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not have the ypserv package installed.
<VulnDiscussion>Removing the "ypserv" package decreases the risk of the accidental (or intentional) activation of NIS or NIS+ services.</V...Rule High Severity -
SRG-OS-000191-GPOS-00080
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must implement the Endpoint Security for Linux Threat Prevention tool.
<VulnDiscussion>Adding endpoint security tools can provide the capability to take actions automatically in response to malicious behavior, wh...Rule Medium Severity -
SRG-OS-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.
<VulnDiscussion>Preventing nonprivileged users from executing privileged functions mitigates the risk that unauthorized individuals or proces...Rule Medium Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must be configured so that a file integrity tool verifies the baseline operating system configuration at least weekly.
<VulnDiscussion>Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...Rule Medium Severity -
SRG-OS-000363-GPOS-00150
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must be configured so that designated personnel are notified if baseline configurations are changed in an unauthorized manner.
<VulnDiscussion>Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized ...Rule Medium Severity -
SRG-OS-000366-GPOS-00153
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must confine SELinux users to roles that conform to least privilege.
<VulnDiscussion>Preventing nonprivileged users from executing privileged functions mitigates the risk that unauthorized individuals or proces...Rule Medium Severity -
SRG-OS-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not allow privileged accounts to utilize SSH.
<VulnDiscussion>Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or proce...Rule Medium Severity -
SRG-OS-000324-GPOS-00125
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must elevate the SELinux context when an administrator calls the sudo command.
<VulnDiscussion>Preventing nonprivileged users from executing privileged functions mitigates the risk that unauthorized individuals or proces...Rule Medium Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must not have accounts configured with blank or null passwords.
<VulnDiscussion>If an account has an empty password, anyone could log on and run commands with the privileges of that account. Accounts with ...Rule High Severity -
SRG-OS-000480-GPOS-00227
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must specify the default "include" directory for the /etc/sudoers file.
<VulnDiscussion>The "sudo" command allows authorized users to run programs (including shells) as other users, system users, and root. The "/e...Rule Medium Severity -
SRG-OS-000373-GPOS-00156
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must prevent the installation of software, patches, service packs, device drivers, or operating system components from a repository without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.
<VulnDiscussion>Changes to any software components can have significant effects on the overall security of the operating system. This require...Rule High Severity -
SRG-OS-000366-GPOS-00153
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must prevent the installation of software, patches, service packs, device drivers, or operating system components of local packages without verification they have been digitally signed using a certificate that is issued by a Certificate Authority (CA) that is recognized and approved by the organization.
<VulnDiscussion>Changes to any software components can have significant effects on the overall security of the operating system. This require...Rule High Severity -
SRG-OS-000114-GPOS-00059
<GroupDescription></GroupDescription>Group -
The Oracle Linux operating system must be configured to disable USB mass storage.
<VulnDiscussion>USB mass storage permits easy introduction of unknown devices, thereby facilitating malicious activity. Satisfies: SRG-OS-00...Rule Medium Severity -
SRG-OS-000378-GPOS-00163
<GroupDescription></GroupDescription>Group -
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
Node 2
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