ISO 27001:2022 Annex A Control 8.26
Abstract of Control 8.26: Application security requirements
ISO 27001 Annex A Control 8.26 addresses the process of identifying, specifying, and approving information security requirements when creating or acquiring applications. It ensures that applications meet security needs based on risks and regulatory demands, protecting the confidentiality, integrity, and availability of the data they handle.
Control Type
- Preventive
Information Security Properties
- Confidentiality
- Integrity
- Availability
Cybersecurity Concepts
- Protect
Operational Capabilities
- Application Security
- System and Network Security
Security Domains
- Protection
- Defence
Objective
The aim of this control is to ensure that all security aspects of applications are addressed during development or acquisition. It defines a systematic approach to prevent security vulnerabilities, support regulatory compliance, and align applications with organizational goals.
Purpose
The control outlines how to address security in applications effectively. It ensures that potential risks are mitigated by defining security requirements during the planning and development stages. These requirements include protecting sensitive information, managing access, and ensuring resilience against threats.
Components of Application Security Requirements
Authentication and Identity Trust
Applications should use methods like multi-factor authentication or digital certificates to verify user identity. This process ensures that users accessing the application are authorized and identifiable.
Data Classification and Protection
Identify the type and sensitivity of information the application will process. This information can then be categorized to apply appropriate security measures, such as encryption or access restrictions.
Access Control and Segregation
Define user roles and assign permissions based on those roles. This segmentation limits unauthorized actions and minimizes the impact of potential security breaches.
Resilience Against Threats
Build safeguards against specific vulnerabilities like SQL injections or buffer overflows. These protections can include input validation and regular updates to the application’s code.
Compliance with Regulations
Applications must adhere to legal, statutory, and regulatory requirements. This includes handling personal data securely and maintaining records according to specific jurisdictions’ laws.
Considerations for Specialized Applications
Transactional Services
Applications that manage transactions should include mechanisms for verifying data integrity and user identities. For example, use hashing or digital signatures to validate data exchanged between parties. Authorization processes must also define who can approve or sign key documents.
Electronic Ordering and Payments
Applications supporting online payments or orders should secure sensitive information, such as payment details and transaction histories. Store transaction records on secure, private systems and implement encryption for communication between parties.
Implementation Guidance
Conduct a Risk Assessment
Evaluate potential risks and vulnerabilities associated with the application. This process identifies specific areas that require attention, such as data encryption or access controls.
Involve Security Specialists
Work with information security experts to ensure all security requirements are comprehensive and aligned with best practices.
Embed Security into Development
Incorporate security considerations from the design stage through to deployment. Include secure coding practices and regular security testing.
Implement Cryptography
Use cryptographic methods to protect data during processing, transmission, and storage. Encryption ensures that data remains confidential and secure.
Regular Monitoring
Set up systems to monitor applications for vulnerabilities or unusual activity. Make updates to address emerging threats as needed.
Common Threats to Application Security
Applications are vulnerable to risks such as unauthorized access, data leaks, or operational disruptions. Network-related threats include message tampering, incomplete transmissions, and replay attacks. Identifying these risks through detailed assessments allows for the implementation of targeted controls, such as encryption or access restrictions.
Document Templates to Support Control 8.26
Document templates play a critical role in implementing this control effectively. These templates can help standardize processes, clarify requirements, and streamline security practices.
Templates That Can Help:
- Application Security Requirements Checklist: A structured list to ensure all security requirements are identified and addressed.
- Risk Assessment Template: A guide to evaluating potential threats and vulnerabilities in applications.
- Access Control Policy Template: Defines roles, responsibilities, and permissions for application users.
- Data Classification Policy Template: Helps classify and protect sensitive information processed by applications.
- Encryption Management Policy Template: Details encryption requirements for data in transit and at rest.
- Secure Development Policy Template: Outlines secure coding practices and development processes.
- Testing and Validation Checklist: Ensures that applications undergo thorough security testing before deployment.
Other Controls Relevant to 8.26
Several controls complement Control 8.26 and provide additional guidance on securing applications. These include:
- Control 5.17: Authentication processes for verifying identities
- Control 8.2: Privileged access rights
- Control 8.24: Use of cryptography
- Control 5.31: Legal, statutory, regulatory and contractual requirements
- Control 5.32: Intellectual property rights
- Control 5.33: Protection of records
- Control 5.34: Privacy and protection of PII
- Control 5.35: Independent review of information security
- Control 5.36: Compliance with policies, rules and standards for information security
- Control 8.5: Secure authentication
Benefits of Application Security Requirements
Properly implemented security requirements help reduce vulnerabilities and ensure compliance with regulations. They also support organizational objectives by providing a secure foundation for applications. Users gain confidence in the systems they interact with, while organizations reduce risks related to data breaches or operational failures.
Resources and Further Reading
For additional details, refer to:
- ISO/IEC 27034: Application security guidance.
- Control 8.25 – Secure Development LifeCycle (SDLC): A methodology for integrating security into software development.
- NIST Cybersecurity Framework: A set of practices for managing cybersecurity risks in applications.
