II - Mission Support Sensitive
Rules and Groups employed by this XCCDF Profile
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SRG-OS-000403-GPOS-00182
Group -
The Ubuntu operating system must only allow the use of DoD PKI-established certificate authorities for verification of the establishment of protected sessions.
Untrusted Certificate Authorities (CA) can issue certificates, but they may be issued by organizations or individuals that seek to compromise DoD systems or by organizations with insufficient secur...Rule Medium Severity -
SRG-OS-000312-GPOS-00122
Group -
Pam_Apparmor must be configured to allow system administrators to pass information to any other Ubuntu operating system administrator or user, change security attributes, and to confine all non-privileged users from executing functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures.
When discretionary access control policies are implemented, subjects are not constrained with regard to what actions they can take with information for which they have already been granted access. ...Rule Low Severity -
SRG-OS-000368-GPOS-00154
Group -
The Ubuntu operating system must be configured to use AppArmor.
Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users wi...Rule Medium Severity -
SRG-OS-000370-GPOS-00155
Group -
The Apparmor module must be configured to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs and limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders.
Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users wi...Rule Medium Severity -
SRG-OS-000104-GPOS-00051
Group -
The Ubuntu operating system must uniquely identify interactive users.
To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to prevent potential misuse and compromise of the system. Organizational user...Rule Medium Severity -
SRG-OS-000118-GPOS-00060
Group -
The Ubuntu operating system must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity.
Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Owners of inactive accounts...Rule Medium Severity -
SRG-OS-000123-GPOS-00064
Group -
The Ubuntu operating system must automatically expire temporary accounts within 72 hours.
Temporary accounts are privileged or nonprivileged accounts that are established during pressing circumstances, such as new software or hardware configuration or an incident response, where the nee...Rule Low Severity -
SRG-OS-000480-GPOS-00228
Group -
The Ubuntu operating system default filesystem permissions must be defined in such a way that all authenticated users can only read and modify their own files.
Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access.Rule Medium Severity -
SRG-OS-000002-GPOS-00002
Group -
The Ubuntu operating system must provision temporary user accounts with an expiration time of 72 hours or less.
If 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 termination of al...Rule Medium Severity -
SRG-OS-000142-GPOS-00071
Group -
The Ubuntu operating system must be configured to use TCP syncookies.
DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. Managing ex...Rule Medium Severity
Node 2
The content of the drawer really is up to you. It could have form fields, definition lists, text lists, labels, charts, progress bars, etc. Spacing recommendation is 24px margins. You can put tabs in here, and can also make the drawer scrollable.