You have been hired as an auditor for a local university, which is preparing to undergo an accreditation inspection to confirm that security controls are in place and adhered to and that data is protected from unauthorized access internally and externally. As the auditor, you play a key role in ensuring compliance. As the organization prepares for its three-year accreditation, you are tasked with gathering the artifacts that will be used to build the accreditation package. The accreditation package will be submitted under the Risk Management Framework (RMF) and will use the controls found in NIST SP 800-53 and NIST SP 800-53A. The controls to be audited are provided in the worksheet.
Your university has an IT staff consisting of the following personnel:
- CIO: in charge of overall network operations and cybersecurity.
- Information Security Officer: implements and manages cybersecurity policies.
- System Analysts: monitor security features implemented on hosts (laptops, desktops) and server-side security (NIPS, NIDS).
- Auditors: validate baseline compliance of systems in accordance with Security Technical Information Guide (STIG), NIST, and federal, state and local policies, regulations, and laws.
- System Administrators: manage data and applications on servers.
- Network Administrators: manage all switches, routers, firewalls, and sensors.
- Desktop Administrators: administer hardware and software to users and manage day-to-day troubleshooting calls from users.
- Help Desk: acts as the liaison between the customer and administrators through the use of a Ticket Management System (TMS).
To ensure separation of duties, all employees are provided a written list detailing their roles and responsibilities. Terminated employees are debriefed, and physical and logical access controls are removed to prevent further access.
- Users are defined as those staff without elevated privileges that can affect the configuration of a computer or networked device.
- Advanced users have the rights and credentials to physically make a configuration change to a networked device or direct a configuration change through positional authority. All advanced users complete the same initial user agreement as standard users as well as a nondisclosure agreement (NDA). There is no required training for standard and advanced users.
- For automated account management, the university uses Active Directory (AD).
Onboarding new users and managing access follows this process:
- When a user arrives, they visit the help desk in person and submit a request to have an account created.
- These forms are reviewed annually by the ISO and stored digitally on the network for three years from the date of termination. The organization defines a time period for each type of account after which the information system terminates temporary and emergency accounts (14 days); all accounts that have not been accessed for 45 days are suspended and, after 90 days, removed from Active Directory.
- The help desk creates a ticket that includes the signed user agreement and assigns the ticket to the system administrators.
- The system administrator (SA) creates the account and assigns the user access based on their role.
- Users are assigned least privilege when an account is created.
- Discretionary access control is created for university departments to allow internal users to share information among defined users. These processes aren’t audited and Active Directory has become a massive database containing accounts of users who are no longer employed by the organization as well as their files. No negative impact has been observed by this.
- System admins track when users log in and log out so security and software patches can be pushed to the users’ machines. This tracking mechanism also contributes to nonrepudiation in the event of a cybersecurity incident. Additionally, the machine is configured to log the user out if there is no activity on the user’s computer for two minutes.
- After three failed login attempts, the account will be locked and will require the user to visit the help desk in person to validate their credentials and unlock the account.
- Download Worksheet: Information Technology Audit and Control [DOCX].
- We started with addressing the Access Control Policy and Procedure (AC-1) and provided the sample below.
- Complete the controls in the rest of the table in the worksheet. Ensure that you answer based on the assessment objective listed in the control and the information in the scenario.
- Submit the worksheet.
ControlAssessment ObjectiveExamineTest/ InterviewCompliant/ Non-CompliantAC-1.1The organization develops and formally documents access control policy; the organization access control policy addresses: purpose; scope; roles and responsibilities; management commitment; coordination among organizational entities; and compliance; the organization disseminates formal documented access control policy to elements within the organization having associated access control roles and responsibilities; the organization develops and formally documents access control procedures the organization access control procedures facilitate the implementation of the access control policy and associated access controls; and the organization disseminates formally documented access control procedures to elements within the organization having associated access control roles and responsibilities.Access control policy and procedures; other relevant documents or records.Organizational personnel with access control responsibilities.Compliant – organization documents access control policy and are implemented based on user role and organizational policies.
This assignment will be graded on the following criteria:
- Determine correct assessment objectives for each of the 11 controls presented in the worksheet.
- Identify Examine categories for all controls as defined in IAW NIST 800-53.
- Identify Test/Interview categories for all controls as defined in IAW NIST 800-53.
- Identify Compliant/Noncompliant categories for all controls as defined in IAW NIST 800-53.