Oracle Linux 8 Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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SRG-OS-000480-GPOS-00227
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SRG-OS-000037-GPOS-00015
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SRG-OS-000037-GPOS-00015
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SRG-OS-000480-GPOS-00227
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SRG-OS-000480-GPOS-00227
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OL 8 vendor-packaged system security patches and updates must be installed and up to date.
Timely patching is critical for maintaining the operational availability, confidentiality, and integrity of information technology (IT) systems. However, failure to keep operating system and applic...Rule Medium Severity -
SRG-OS-000033-GPOS-00014
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OL 8 must implement NIST FIPS-validated cryptography for the following: To provision digital signatures, to generate cryptographic hashes, and to protect data requiring data-at-rest protections in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards.
Use of weak or untested encryption algorithms undermines the purposes of using encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards...Rule High Severity -
SRG-OS-000185-GPOS-00079
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SRG-OS-000023-GPOS-00006
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SRG-OS-000023-GPOS-00006
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SRG-OS-000023-GPOS-00006
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SRG-OS-000023-GPOS-00006
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OL 8 must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system via a command line user logon.
Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal ...Rule Medium Severity -
SRG-OS-000032-GPOS-00013
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All OL 8 remote access methods must be monitored.
Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities increase risk and make remote user access mana...Rule Medium Severity -
SRG-OS-000066-GPOS-00034
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SRG-OS-000067-GPOS-00035
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SRG-OS-000073-GPOS-00041
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SRG-OS-000073-GPOS-00041
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OL 8 must employ FIPS 140-2 approved cryptographic hashing algorithms for all stored passwords.
The system must use a strong hashing algorithm to store the password. Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords ar...Rule Medium Severity -
SRG-OS-000073-GPOS-00041
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The OL 8 shadow password suite must be configured to use a sufficient number of hashing rounds.
The system must use a strong hashing algorithm to store the password. The system must use a sufficient number of hashing rounds to ensure the required level of entropy. Passwords need to be prot...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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OL 8 operating systems booted with United Extensible Firmware Interface (UEFI) must require authentication upon booting into single-user mode and maintenance.
If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes single-user or maintenance mode is granted privileged access to all file...Rule High Severity -
SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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SRG-OS-000080-GPOS-00048
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OL 8 operating systems booted with a BIOS must require authentication upon booting into single-user and maintenance modes.
If the system does not require valid authentication before it boots into single-user or maintenance mode, anyone who invokes single-user or maintenance mode is granted privileged access to all file...Rule High Severity -
SRG-OS-000080-GPOS-00048
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OL 8 operating systems must require authentication upon booting into rescue mode.
If the system does not require valid root authentication before it boots into emergency or rescue mode, anyone who invokes emergency or rescue mode is granted privileged access to all files on the ...Rule Medium Severity -
SRG-OS-000080-GPOS-00048
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OL 8 operating systems must require authentication upon booting into emergency mode.
If the system does not require valid root authentication before it boots into emergency or rescue mode, anyone who invokes emergency or rescue mode is granted privileged access to all files on the ...Rule Medium Severity -
SRG-OS-000120-GPOS-00061
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The OL 8 "pam_unix.so" module must be configured in the system-auth file to use a FIPS 140-2 approved cryptographic hashing algorithm for system authentication.
Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied on to provide confidentiality or integrity, and DoD data may be co...Rule Medium Severity -
SRG-OS-000120-GPOS-00061
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SRG-OS-000120-GPOS-00061
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SRG-OS-000120-GPOS-00061
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The krb5-workstation package must not be installed on OL 8.
Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied on to provide confidentiality or integrity, and DoD data may be co...Rule Medium Severity -
SRG-OS-000120-GPOS-00061
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The krb5-server package must not be installed on OL 8.
Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied on to provide confidentiality or integrity, and DoD data may be co...Rule Medium Severity -
SRG-OS-000134-GPOS-00068
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OL 8 must use a Linux Security Module configured to enforce limits on system services.
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 firmwar...Rule Medium Severity -
SRG-OS-000134-GPOS-00068
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SRG-OS-000138-GPOS-00069
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A sticky bit must be set on all OL 8 public directories to prevent unauthorized and unintended information transferred via shared system resources.
Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of ...Rule Medium Severity -
SRG-OS-000126-GPOS-00066
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OL 8 must be configured so that all network connections associated with SSH traffic terminate after becoming unresponsive.
Terminating an unresponsive SSH session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or con...Rule Medium Severity -
SRG-OS-000126-GPOS-00066
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OL 8 must be configured so that all network connections associated with SSH traffic are terminated after 10 minutes of becoming unresponsive.
Terminating an unresponsive SSH session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or con...Rule Medium Severity
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