CI/CD Security for build and deployment | Anexia

In build security, we look at which code is executed with which rights. A contribution from a less trustworthy context must not automatically gain access to production credentials. It must also be clear whether a build merely runs tests or already publishes artefacts. Separating these tasks determines runner configuration, permissions and approvals.

For deployment security, we also examine indirect dependencies of the process. Reused pipeline components, external actions and dynamically loaded scripts can alter the build without the actual application code being affected. Versions and sources are therefore defined deliberately. With CI/CD Security, production deployments receive permissions that are limited in time and scope wherever possible. A failed job must not leave behind access that remains permanently unclear. Acceptance covers manipulated inputs, unauthorised release attempts and changes to the pipeline itself. Pipeline security thus examines the trust relationships of the entire delivery path and not just the successful execution of a normal build.

Scope of services for CI/CD Security

The agreed scope for build security can include the following results: runner concept, permission model, secrets management, approval rules and recording of relevant build events. For each key result, we define its purpose, who reviews it and in what form it is handed over. This allows development, operations and procurement to assess the same service. Vague umbrella terms are replaced with concrete work packages in the offer.

Deployment security also includes coordinating the necessary interfaces with your team. We clarify access, contact persons and available testing options before the relevant implementation steps. Changes to the scope are described along with their impact on effort and sequence. This gives you a clear overview of delivered results, outstanding prerequisites and additional requests.

The key technical decision in CI/CD Security

Build, testing and production deployment receive separate permissions. External contributions must not take over production credentials. For pipeline security, we document the relevant assumptions and justify the chosen option. Key alternatives are considered against the same business requirements. This makes later adjustments easier when load, data volume or organisational responsibility changes.

A sound decision also takes maintainability and handover into account. For build security, we check which skills are available internally and what additional support is needed. This connects technical possibilities with a realistic operating model. The client can see which tasks will recur after the project and which decisions remain with them.

Persistent working directories and shared caches can transfer data between builds or pass on manipulated components. In deployment security, we treat this as a concrete question to be checked. A risk is linked to the affected process, its possible impact and a suitable measure. Where prerequisites are still missing, the statement remains explicitly open until the necessary investigation has been carried out.

We test rights for pull requests, access to secrets, reuse of working environments and unauthorised changes to the release process. For CI/CD Security, we record the initial situation, the tested configuration and the result. Acceptance refers to the agreed scope. Open limitations are documented visibly and assigned to an owned next step. This allows your team to distinguish between proven functionality, a deliberate decision and an assumption that has not yet been confirmed.

Project example as an illustrative scenario

The following scenario is a use case example and not a customer reference. A team uses the same pipeline for external contributions, internal tests and production deployments. With CI/CD Security, we would examine where untrusted code comes into contact with credentials or release rights. The pilot would cover a single service whose complete release path can be traced.

For pipeline security, build jobs would be separated according to trust boundaries. A contribution from an unapproved branch would not be allowed to receive production secrets. The published package would have to be clearly assigned to the reviewed state and remain unchanged between testing and delivery. Practical tests would include modified pipeline scripts, manipulated dependencies and failed approvals. A halted release would have to show clearly which condition was not met. Revoking a technical access right would also be tested, including any cached permissions.

Acceptance of build security would cover a regular release as well as unauthorised paths that are deliberately rejected. The planned results would be separate roles, traceable package assignment and documented recovery procedures. The team would need to be able to stop or roll back a faulty release in a controlled way. Which additional signatures or approval stages are required would be derived from the protection requirements and the actual delivery process, instead of adding the same obstacles to every pipeline regardless of its use.

Our experience and our engineering approach

We combine custom software development with the technical tasks of introduction and further development. For pipeline security, we bring the perspectives of application, integration and operations into a shared workflow. The business requirements remain connected to the technical decisions. You work with a defined scope of services and traceable results.

Our experience should become concretely verifiable for your project. That is why, in a technical exchange, we explain how we investigate the relevant risks, which work results are planned and how your team can assess them. For build security, we align the roles involved with actual needs. Available references are placed in the context of the respective project and company; confidential customer details are not used as general marketing claims.

Effort for build security

Runner capacity, depth of isolation, signature verification and existing identity services determine the scope. We therefore estimate CI/CD Security based on a defined scope and explicitly stated prerequisites. An initial analysis step can be useful if key technical information is still missing. Afterwards, work packages and acceptance criteria can be agreed on a more reliable basis.

Pipeline security can be organised as a limited project, as a joint implementation with your team or with subsequent support. Rights of use, access, documentation and responsibilities are clarified in the contract. Ongoing operating hours, response times and external consumption costs are separate agreements. This keeps it clear which services are provided once and which tasks recur after the introduction.

Boundaries of CI/CD Security

Hardening the pipeline does not replace a security review of the application that is actually delivered. For deployment security, we already set out this boundary in the offer. Additional services that are needed are included with their business justification and are not silently assumed. This allows your team to plan for suitable internal skills and divide the overall work sensibly between the parties involved.