II - Mission Support Classified
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000057-GPOS-00027
Group -
NixOS syslog logs must have a mode of 0640 or less permissive.
Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the NixOS system or platfor...Rule Medium Severity -
SRG-OS-000058-GPOS-00028
Group -
NixOS audit system must protect login UIDs from unauthorized change.
If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. Audit information includ...Rule Medium Severity -
SRG-OS-000063-GPOS-00032
Group -
NixOS system configuration files must have a mode of "0644" or less permissive.
Without the capability to restrict the roles and individuals that can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured a...Rule Medium Severity -
SRG-OS-000063-GPOS-00032
Group -
NixOS system configuration file directories must have a mode of "0755" or less permissive.
Without the capability to restrict the roles and individuals that can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured a...Rule Medium Severity -
SRG-OS-000063-GPOS-00032
Group -
NixOS system configuration files and directories must be owned by root.
Without the capability to restrict the roles and individuals that can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured a...Rule Medium Severity -
SRG-OS-000063-GPOS-00032
Group -
NixOS system configuration files and directories must be group-owned by root.
Without the capability to restrict the roles and individuals that can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured a...Rule Medium Severity -
SRG-OS-000066-GPOS-00034
Group -
NixOS, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.
Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate not already explicitly trusted. A trust anchor is an authoritative entit...Rule Medium Severity -
SRG-OS-000067-GPOS-00035
Group -
NixOS must enforce authorized access to the corresponding private key for PKI-based authentication.
If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the network infrastructure. The cornerstone of the PKI is the private key use...Rule Medium Severity -
SRG-OS-000069-GPOS-00037
Group -
NixOS must enforce password complexity by requiring that at least one uppercase character be used.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity -
SRG-OS-000070-GPOS-00038
Group -
NixOS must enforce password complexity by requiring that at least one lowercase character be used.
Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resistin...Rule Medium Severity
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