ISO 27001 Annex : A.14.2.3 , A.14.2.4 & A.14.2.5

In this article explain ISO 27001 Annex : A.14.2.3 Technical Review of Applications after Operating Platform Changes , A.14.2.4 Restrictions on Changes to Software Packages & A.14.2.5 Secure System Engineering Principles this controls.

A.14.2.3  Technical Review of Applications after Operating Platform Changes

Control- In changing operating platforms, critical applications of business should be revised and tested to ensure no adverse impacts on business or security.

Implementation Guidance – The following points should be covered in the process:

• Review of application control and processes of integrity to ensure that changes to the operating platform have not compromised them;
• Ensure that operating platform changes are communicated at the right time to enable proper tests and reviews prior to implementation;
• Ensuring that the business continuity plans are properly amended.

Other Information – Operating environments are operating systems, databases, and applications for middleware. API modifications should also be tracked.

Related Product : ISO 27001 Lead Auditor Training And Certification ISMS

A.14.2.4  Restrictions on Changes to Software Packages

Control- Software package modifications should be discouraged, restricted to the modifications necessary, and all changes controlled strictly.

Implementation Guidance – The vendor-supplied software packages should be used without alteration to the extent necessary and feasible. The following points should be considered where a software package needs to be modified:

• the possibility of conflict with built-in controls and processes of integrity;
• Whether Vendor’s consent has been obtained;
• the opportunity, in regular system updates, to receive the necessary vendor changes;
• impacts when the organization becomes responsible as a result of changes for the future maintenance of software;
• Additional software compatibility in use.

The original software should be kept if changes are necessary and the modifications applied to the specified copy. To ensure that the most up to date approved patches and application updates are installed for all permitted software, a software update management process should be implemented. All modifications should be carefully checked and reported, in order to reapply to potential software updates if necessary. If required, a separate evaluation body will check and verify the modifications.

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Also Read : ISO 27001 Annex : A.14.2 Security in Development and Support Processes

A.14.2.5  Secure System Engineering Principles

Control- In the implementation of any information system implementation project, standards for secure system engineered must be established, documented, maintained, and implemented.

Implementation Guidance – Secure IT Engineering procedures based on the principles of security engineering should be established, documented, and applied in in-house IT Engineering. The need for data security and accessibility should be balanced in all architecture layers (e.g., business, data, applications, and technology).   New technology for security threats needs to be evaluated and the design for documented attack patterns should be reviewed.

Such principles and the developed engineering processes should be reviewed periodically, to ensure that they contribute effectively to improved safety standards in the engineering phase. They should also be reviewed on a regular basis to ensure that they remain relevant as concerning the combat against any new potential threats and remain applicable to technical advancements and implemented solutions.

Where appropriate, the established principles of security engineering should be applied to outsourced information systems through the agreements and other binding agreements between the organization and its suppliers to whom the organization outsources.   The business must ensure that the rigor of the security engineering standards of suppliers is comparable to its own.

Read More : https://info-savvy.com/iso-27001-annex-a-14-2-3-a-14-2-4-a-14-2-5/

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