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V-57227

The operating system must allow operating system admins to grant their privileges to other operating system admins.

Finding ID
SRG-OS-000312-GPOS-00123
Rule ID
SV-71487r1_rule
Severity
Cat II
CCE
(None)
Group Title
SRG-OS-000312-GPOS-00123
CCI
CCI-002165
Target Key
(None)
Documentable
No
Discussion

Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. DAC allows the owner to determine who will have access to objects they control. An example of DAC includes user-controlled file permissions. 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. Thus, subjects that have been granted access to information are not prevented from passing (i.e., the subjects have the discretion to pass) the information to other subjects or objects. A subject that is constrained in its operation by Mandatory Access Control policies is still able to operate under the less rigorous constraints of this requirement. Thus, while Mandatory Access Control imposes constraints preventing a subject from passing information to another subject operating at a different sensitivity level, this requirement permits the subject to pass the information to any subject at the same sensitivity level. The policy is bounded by the information system boundary. Once the information is passed outside the control of the information system, additional means may be required to ensure the constraints remain in effect. While the older, more traditional definitions of discretionary access control require identity-based access control, that limitation is not required for this use of discretionary access control.

Fix Text

Configure the operating system to allow operating system admins to grant their privileges to other operating system admins.

Check Content

Verify the operating system allows operating system admins to grant their privileges to other operating system admins. If it does not, this is a finding.