WGU C845 VUN1 Task 1,2,& 3| Passed on First Attempt |Latest Update with Complete Solution

WGUC845VUN1Task1,2&3|Passed on
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,x. First Attempt |Latest Update with
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,x. Complete Solution. ,x.




THISEXAMCONTAINS:
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➢ WGU C845 VUN1 Task 1 ,2& 3
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➢ Latest Update with Complete Solution
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➢ WGU C845 VUN1 ,x. ,x.




➢ Guaranteed Pass ,x.

, WGU C845 VUN1 Task 1 | Passed on FirstAttempt ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x.




|LatestUpdatewithCompleteSolution
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VUN1 — VUN1 Task 1:Managing SecurityOperations and AccessControls
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Information Systems Security - C845
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A. ApplyanAccessControlModel .
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A.1. Chosen Access Control Model , x. ,x. ,x.




I have chosen the Role-Based Access Control (RBAC) model. The principles of RBAC are:
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• RoleAssignment: Auser isassigned to a role basedontheir jobfunction(e.g., "Finance
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Analyst").
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• Permission Assignment:Permissionstoperformoperations onsystemsareassignedtoroles, not
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to individual users.
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• Session Management: A user activates a role to gain the associated permissions for a session.
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• Least Privilege: Usersshouldonlyhave the minimum levelofaccessnecessarytoperform their job
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duties.
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The organization's access control structure, as seen in the user matrix, is implicitly role-based (e.g.,
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"Financemanager,""HRcoordinator").ApplyingaformalRBACmodelwouldstreamlinethisbyensuring
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permissions are strictly tied to business functions, reducing complexity and the potential for user error
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when assigning permissions.
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A.2. Four Misalignments with RBAC Principles , x . , x . , x . , x .




1. Misalignment 1: Privilege Escalation Beyond Role Scope ,x. ,x. ,x. ,x. ,x. ,x.




• Description:The"Juniorsystemadmin"(J.Lopez)has"Domainadmin"privileges.A ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x.




junior role should not have the highest level of access in a Windows environment.
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• Conflictwith RBAC:Thisviolates theprincipleof leastprivilege.The role"Junior system ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x.




admin"impliesasubsetofadministrativeduties,notunrestricteddomain-widecontrol.
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2. Misalignment 2: Unnecessary Access Across Departments ,x. ,x. ,x. ,x. ,x.




• Description:The "Finance analyst" (L. Cheng) has "Fullaccess" to the CRM, a system ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x. ,x.

, primarily for Sales and Support. A finance role typically does not require full modification
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rights in a customer relationship system.
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• Conflict with RBAC: This violates least privilege and separation of duties. It allows for
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potential data manipulation outside the user's core business function.
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3. Misalignment 3: Violation of User-Role Assignment Post-Termination
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• Description: The "HR assistant" (P. Ellis), who was terminated on 2025-05-20, has an
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"Active" account status and successfully logged in on 2025-06-29.
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• Conflict with RBAC: RBAC requires timely revocation of role assignments upon a change in
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employment status. An active session for a terminated user completely bypasses the
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security provided by the role structure.
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4. Misalignment 4: Overly Broad Privileged Access
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• Description: The "IT administrator" (T. Miller) has "Full admin" access to "All internal
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systems," and the log shows they made a firewall rule change without a ticket_id.
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• Conflictwith RBAC: While some access is necessary, blanket "Full admin" access
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violates least privilege and impedes accountability. It does not segment duties within the IT
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department itself.
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