II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000298-GPOS-00116
Group -
NixOS must enable the built-in firewall.
Without the ability to immediately disconnect or disable remote access, an attack or other compromise taking place would not be immediately stopped. Operating system remote access functionality mu...Rule Medium Severity -
SRG-OS-000002-GPOS-00002
Group -
NixOS emergency or temporary user accounts must be provisioned with an expiration time of 72 hours or less.
If emergency or temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain unauthorized access. To mitigate this risk, automated term...Rule Medium Severity -
SRG-OS-000004-GPOS-00004
Group -
NixOS must enable the audit daemon.
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an acco...Rule Medium Severity -
SRG-OS-000021-GPOS-00005
Group -
NixOS must enforce the limit of three consecutive invalid login attempts by a user during a 15-minute time period.
By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking...Rule Medium Severity -
SRG-OS-000023-GPOS-00006
Group -
NixOS must be configured to display the Standard Mandatory DOD Notice and Consent Banner before granting local or remote access to the system via a command line user login.
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
Node 2
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