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Cloud Computing Security Audit And Assessment

Cloud Computing Security Audit And Assessment – ITSP.50.105 Guidance for Cloud Security Assessment and Approval is an unpublished publication, issued under the authority of the Chief Executive, Communications Security Establishment (CSE). For more information or to suggest changes, contact the Canadian Security Center (Centre) customer service team:

Cloud computing has the potential to provide your organization with flexible, on-demand, scalable and self-service IT services. To take advantage of cloud computing, your organization must ensure that security risks are properly managed, cloud-specific security considerations are addressed, and security controls for cloud-based services are properly assessed before approval.

Cloud Computing Security Audit And Assessment

Cloud Computing Security Audit And Assessment

Your organization can use the guidance in this document for security assessment and approval of cloud-based services. ITSP.50.105 and its annexes:

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A cloud environment is more complex than a traditional computing environment. CSPs rely on a number of complex technologies to secure cloud infrastructure and provide critical security features to protect your organization’s cloud workloads. Both the CSP and your organization are responsible for securing various components under their responsibilities. This shared responsibility model adds complexity to the cloud ecosystem. Rigorous security assessment and monitoring practices should be implemented to ensure that the appropriate controls are being used by the various cloud operators and are operating and functioning effectively.

The shared responsibility model of cloud computing allows the CSP to delegate some responsibilities, while your organization is responsible for determining and managing the residual risks of the cloud-based service it operates. As a result, your organization needs to understand the overall effectiveness of its security controls and those implemented by the CSP.

ITSP.50.105 is part of the documentation issued by the Center to help secure cloud services and supports the process described in ITSM.50.062 Cloud Security Risk Management.[1]

The need for a security assessment is typically identified in your organization’s security policies, directives, regulations, standards and procedures. The publications listed below can be used as reference material when your organization is building its own security assessment program for the security of cloud services:

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The security guidelines provided in this document apply to both private and public organizations. The guidelines can be applied to cloud-based services independently of cloud services and deployment models.

ITSG-33 [2] suggests various activities at two levels of your organization: the departmental level and the information systems level.

Join your organization’s security program to improve planning, management, assessment and management of the IT security-related risks your organization faces.

Cloud Computing Security Audit And Assessment

This information is integrated into the system development life cycle (SDLC). These activities include information system security engineering implementation, threat and risk assessment, security assessment and authorization. The Center’s risk management process for cloud security is aligned with operations at the information system level. As shown in Figure 1, assessment, approval, and continuous monitoring activities support steps four, six, seven, eight, and nine of the cloud security risk management process.

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Figure 1: Assessment of security, authorization and monitoring activities at the information system level and the cloud security risk management process

Figure 1 shows the mapping of information system layer functions of ITSG-33 and Annex 2 of cloud security risk management functions of ITSP.50.062, which are:

Figure 1 also shows the mapping of Appendix 1 of ITSG-33 departmental level activities with a selection of security control features in the cloud security risk management process.

Your organization and CSP must implement and operate policies, standards, procedures, guidelines and controls to ensure cloud computing security. Cloud Security Assessment and Monitoring:

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Security control guidelines for cloud-based services have been developed based on the key specifications of Appendix 4 of ITSG-33 [2]. The Cloud Security Controls Guidelines outline recommended controls that your CSP and organization should implement for each business evaluated security element.

. The selected cloud control profile also serves as a basis for evaluating security controls. As illustrated in Figure 2, the cloud security control database identifies recommended controls for each type of cloud deployment service. Control guidelines also indicate who is responsible for controls (either the CSP or your organization).

Figure 2 shows a table with information on Incident Reporting (IR-6), one of the recommended security controls for the CCCS cloud sub-profile. Information about controls includes:

Cloud Computing Security Audit And Assessment

The schedule indicates that IR-6 controls for IaaS/PaaS and SaaS cloud service providers must be implemented by both CSPs and clients.

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Your organization does not have the direct control or visibility necessary to directly assess controls under CSP responsibility. For this reason, your organization should review official certifications or independent third-party evidence to confirm that the CSP has implemented its controls and that they are operating effectively. Your organization must directly assess the extent of its responsibilities.

Assessing and monitoring cloud security is a shared responsibility. Responsibility for assessing security controls may vary based on the chosen cloud setup and service model. In the Infrastructure as a Service (IaaS) model, your organization is responsible for the automated assessment of many components and controls, while in the PaaS and SaaS models, your organization must use authoritative certificates or independent third-party certificates to ensure security controls. are implemented and function effectively.

A comprehensive and independent security assessment of a CSP requires time, money and human resources. Fortunately, most CSPs perform third-party audits and compliance verification. These calculations (which follow various regulations and industry requirements

A SOC report is issued by an independent Certified Public Accountant (CPA) to a service organization (an organization that provides services to other organizations) to ensure that the services and controls they provide are complete. Each type of SOC reporting service is designed to help organizations meet specific user needs.

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Originally developed by the American Institute of Certified Public Accountants (AICPA), three SOC reporting formats have been developed to meet different needs. SOC 1 considers the controls within the reporting service organization that apply to the user’s internal control over financial reporting. For example, your organization’s financial accountant may need a SOC 1 report to validate the service organization’s controls related to your organization’s financial reporting. SOC 2 and SOC 3 reports describe the service organization’s controls related to trust service principles for security, access, process integrity, or confidentiality.

It should be noted that SOC 1 and SOC 2 reports are not certifications but an auditor’s opinion about the service organization’s internal controls and security practices. It should also be noted that participation in SOC 3 is a general use report, which may result in validation,

And allow the seal to be placed on the CSP website for marketing purposes. SOC tests do not provide a comprehensive assessment of security management. Instead, they focus on specific belief principles and requirements.

Cloud Computing Security Audit And Assessment

The SOC 3 report differs from the SOC 2 report in that it provides limited accounting input, a statement of CSP management, and a brief description of the CSP system. SOC 3 reports are short and do not describe control and testing procedures. SOC 3 reports are for general use, mainly used by CSPs for marketing purposes and do not provide control details. Distribution of SOC 1 and SOC 2 reports is generally restricted, and a non-disclosure agreement is required, while SOC 3 reports can be distributed freely.

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There are two types of SOC reports. A Type 1 report is evidence of controls over a period of time, while a Type 2 report provides evidence of controls for at least six months. In both Type 1 and Type 2 reports, the auditor provides an opinion on whether management’s description of the service organization’s systems is fairly presented. Both types of reports provide feedback on whether the controls included in the description are adequately designed to meet applicable trust service requirements. Type 2 reports include additional feedback on whether controls are operating effectively.

SOC 2 and SOC 3 reports are for multiple users and provide assurance on trust service principles of security, availability, process integrity, privacy and confidentiality. While this is sufficient for most organizations, some may need to test relevant controls in additional areas. For example, organizations in the financial, government, and health sectors must adhere to different (and often multiple) control structures. This may be necessary to meet specific regulations or industry sector requirements. SOC 2 Trust Services and Related Requirements cannot directly map controls to other control systems.

. This means a greater effort for your organization and your CSP to deal with additional requests for information, prepare additional audit reports, and review compliance requirements. This large effort can lead to increased costs and risks of non-compliance due to the complexity of reviewing information from various reports.

To help address these challenges, service organizations can request third-party auditors to conduct SOC 2 exams covering additional topics and requirements.

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. This is commonly known as the SOC 2+ test. For example, a service provider

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