The Never-Ending Saga of Being Cyber ‘Insecure’

In an era where cyber threats loom large and data breaches are a ‘regular element’ in the everyday news headlines, ensuring robust cybersecurity is imperative for organizations irrespective of their size or industry.

Considering the above situation, the big question for enterprises facing cybersecurity challenges is: “How to Tackle Such Problems?” According to a good old saying, “Everything in life goes back to the basics.” The same holds good in this situation as well. It is essential to return to the fundamentals and reexamine the core design principles that underpin our security infrastructure. With constantly evolving threats and emerging industry trends, evaluating the impact of such threats on our foundational architecture is essential, and adapting accordingly to accommodate the dynamic changes that follow is equally important.

Cybersecure Architecture by Design (CAD) is a proactive approach to cybersecurity that emphasizes integrating security principles into the core fabric of cloud architecture from the very beginning.

In this blog, we explore the essence of CAD and how it reshapes the cybersecurity landscape.

CAD: Need & Significance

Cloud technologies offer scalable solutions for storage, computing power, application hosting, and on-demand access to resources and allow businesses to quickly scale up or down as per their computing needs and budgetary constraints. In addition to improving the overall security posture, this strategy also promotes simplicity, agility, and trust, which simplifies the administration and maintenance of security policies.

Cloud security architecture helps businesses leverage the cloud in all its forms, including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS) mitigating exposure and vulnerability. In the absence of a cloud security architecture, the risks associated with the cloud could outweigh any potential benefit.

Cloud Security: Threats & Challenges

The most common threats that impact cloud services are data breaches, malware injections, insider threats, Advanced Persistent Threats (APTs), credential stuffing attacks, zero-day attacks, account hijacking via stolen or compromised credentials, phishing, and denial-of-service attacks.

Typical security issues we face nowadays within a cloud environment include:

• Insufficient Access Controls: Weak or misconfigured access controls that let unauthorized users access cloud resources or data.
• Insecure Interfaces and APIs: Exploitable vulnerabilities are found in cloud service interfaces and APIs.
• Compliance Risks: Non-compliance with regulatory requirements and industry standards governing cloud data privacy and security.
• Inadequate Encryption: Lack of encryption for data at rest or in transit leaves sensitive information vulnerable to interception or theft.
• Shared Technology Vulnerabilities: Exploitation of vulnerabilities in shared infrastructure or components of cloud environments, leading to security breaches across multiple tenants.
• Shadow IT: Unauthorized use of cloud services and applications by employees, leading to uncontrolled data exposure and security risks.
• Lack of Visibility and Control: Limited visibility into cloud environments and insufficient control over security configurations make it challenging to identify and address security incidents.

CAD is indispensable to managing cloud security threats because it enables:

• Proactive Risk Mitigation
• Comprehensive Protection and
• Adaptability to an Evolving Threat Landscape.

Understanding CAD

CAD refers to the practice of designing and implementing robust cyber defense, comprehensive risk management, security layers, the structure of the cloud platform, tools, software, and infrastructure, by integrating security principles and best practices into a cloud security solution. This holds good for all cloud computing infrastructure types, including public, private, and hybrid clouds.

Figure 1: Cybersecure Architecture by Design

CAD is a cloud-native security approach for cloud applications that covers microservices, containers, Kubernetes, and APIs. Embracing a “shift-left” strategy to find and fix security flaws early in the software lifecycle reduces the risk of serious vulnerabilities.

Key Principles of CAD                                                                                                                                       

The key principles of CAD are:

• Risk-based Approach: Adoption of a risk-based approach to security, where security measures are prioritized based on the potential impact and likelihood of security threats and vulnerabilities.
• Principle of Least Privilege: Adherence to the principle of least privilege by restricting access rights to the minimum essential level.
• Defense-in-Depth: Utilizing a layered approach to security by implementing multiple layers of security controls to defend against a variety of threats and attack vectors.
• Secure Development Practices: Adherence to secure coding standards, conducting regular vulnerability assessments, and implementing robust code review processes to identify and mitigate security vulnerabilities early in the development process.
• Shared Responsibility: Define security responsibilities between the cloud service provider (CSP) and the organization, ensuring clarity and understanding of each party’s role in securing cloud environments.
• Automation: Swift provisioning and update of security controls in a cloud environment.
• DevSecOps: Close cooperation between developers, operations, and security professionals.

Cloud Cybersecurity Reference Model

The Cloud Cybersecurity Reference Model (CCRM) offers a comprehensive approach to cloud cybersecurity by outlining the building blocks pertaining to shared service responsibility.

Figure 2: Cloud Cybersecurity Reference Model

Cloud Security Architecture is a framework for securing cloud environments across service models like IaaS, PaaS, and SaaS. It emphasizes security assurance across all the layers of the cloud stack. This assurance includes robust measures for protecting network infrastructure, securing endpoints, safeguarding storage systems, hardening servers, encrypting sensitive data, and fortifying applications against cyber threats.

Shared Services Responsibility refers to the division of security responsibilities between the CSP and the client (the organization using the cloud services).

Alignment of CAD Principles with the NIST Framework

CAD and Cybersecurity Fusion Center (CFC) security principles are aligned with the NIST Cybersecurity Framework (CSF) guidelines of both frameworks to establish a robust and comprehensive approach to cybersecurity.

The below image describes CAD and CFC mapping with the NIST v2 Framework.

To learn more about our CFC Capabilities, please visit Cyber Security Service Provider – Innova solutions

Figure 3: NIST v2 Framework

Organizations can implement cybersecurity practices in the following domains:

• Identify: It encompasses the use of the updated Configuration Management Database (CMDB) for risk-based and contextual analysis of configuration items.
• Protect: It involves the use of various technologies such as perimeter security, host security, data security, and identity and access management, along with key processes that address Security Incident, Change, Release, Problem and Change management for standardized operations.
• Govern: It includes establishing a comprehensive and robust risk management framework that includes organizational context, strategy, roles, policies, procedures, and oversight.
• Detect: Ensure that organizations implement the right technologies such as Security Information and Event Management (SIEM) (AI/ML powered), Threat Intelligence (Outsider Threat detection), Threat Hunting (Detection of blind spots on the wire) and key processes for managing Telemetry life cycle.
• Respond: Implements the key process to monitor Indicators of Compromise (IOCs) round the clock to triage, qualify, and respond to the alerts generated through SIEM, Threat Intelligence, and Threat Hunting platform. In addition, Security Orchestration, Automation, and Response (SOAR) automates the incident response process and delivers actionable security intelligence to resolver groups for timely containment and mitigation.
• Recover: Ensure key technologies and processes are operationalized to perform a comprehensive investigation of critical security incidents to determine gaps in the existing security tools, processes, and skillsets and capture the learnings to prevent recurrence in the future.

Comprehensive Security Coverage: Adoption of Cloud Native Security Controls & Best Practices

CAD addresses all aspects of cybersecurity by integrating with cloud computing capabilities to leverage the built-in security features offered by cloud providers to enhance overall security coverage.

CAD takes a holistic approach, integrating with Azure, AWS, and Google Cloud Platform (GCP) cloud computing capabilities.

Figure 4: Azure, AWS, and GCP Cloud Native Security Controls

CAD achieves this by leveraging the native security features and capabilities offered by cloud platforms like Azure, AWS, and GCP. Each of these cloud providers offers a large ecosystem of infrastructure and services, which includes security tools and best practices.

CAD encourages the deployment of security configurations, controls, and best practices. It adheres to the best practices for each cloud provider.

Figure 5: Adoption of Security Controls by Leading Hyper-scalers

Benefits of CAD                                                                                                                 

• Improved visibility: CAD helps in understanding the attack surface and identifying the areas where weaknesses and vulnerabilities lie.
• Holistic Approach: CAD’s holistic approach covers all the aspects of cloud architecture, including infrastructure, applications, data, and user access, to ensure comprehensive protection across several clouds.
• Cost Optimization: Delivered as a service with fully managed infrastructure, thereby shifting the conventional costs of security licenses and specialized hardware from a capital expense model to an operating expense. This minimizes overhead expenditures.
• Compliance Assurance: CAD aligns cloud architectures with industry standards like the NIST V2 framework, ensuring compliance with data protection.
• Operational Efficiency: With built-in security controls and automated processes, CAD streamlines security operations, allowing organizations to focus on their core business activities.
• Simplicity: By simplifying security architecture design, CAD offers a structured approach that simplifies the comprehension and application of security controls effectively.

The Innova Approach

Innova’s approach to adopting Cybersecure Architecture by Design (CAD) helps build a robust and resilient cybersecurity posture that upholds the “Security First” approach across all the security dimensions. Innova has embraced the cloud computing capabilities offered by industry leading CSPs to align with CAD’s goal of establishing a proactive and resilient cybersecurity posture.

Organizations can strengthen their security defenses and effectively mitigate cyber risks in an increasingly digital world by leveraging the scalability, security features, compliance frameworks, and innovation provided by CSPs. By adopting CAD, organizations can cultivate a security-conscious culture by adhering to its principles and leveraging the building blocks to develop resilient and secure systems that safeguard against a variety of cyber threats.