What Is CI/CD Security?

CI/CD stands for continuous integration and continuous deployment. Simply put, it's about automated workflows for fast software delivery while ensuring application security. 

Teams can ensure the integrity and security of CI/CD pipelines with:

  • SAST or Static Application Security Testing. Apply SAST tools to scan source code and identify security vulnerabilities during the development stage (without executing the application)

  • DAST or Dynamic Application Security Testing. Use DAST tools to identify known vulnerabilities while the application is running.

  • SCA or Software Composition Analysis. With SCA tools, perform inspections and identify security threats when working with third-party libraries and open-source components.

  • IaC or Infrastructure as Code. Analyze infrastructure scripts and identify misconfigurations, security issues, and security policies violations.

  • Secrets Management. Implement robust access control, rotation, and auditing of use to protect sensitive data, such as credentials, certificates, and API keys.

  • Container Security Checks. Analyze container configurations, dependencies, and runtime behaviors for vulnerabilities.

CI/CD security prevents and minimizes potential attacks by protecting against exploits of vulnerabilities that could compromise the integrity, confidentiality, and performance of software.

The Importance of CI/CD Within DevSecOps Workflows

One of the main reasons why CI/CD pipeline security deserves special attention is that it's an extremely attractive target for attackers. Since the pipeline involves centralized and automated processes that include code changes and deployment, any ignored security issues in the pipeline could lead to unauthorized access to the system. Embedding security in CI/CD prevents situations when hackers inject malicious code or exploit the backdoors, thereby protecting against data leaks and infrastructure compromise.

It's also important to consider the fast-paced nature of CI/CD, which naturally increases risks. Therefore, without proper security controls, vulnerabilities can propagate quickly through the pipeline, making their detection more difficult. Another aspect is the use of open-source and third-party components within the CI/CD process, which also increases software supply chain security risks.

To reduce the risk of hacks, financial and reputational losses, as well as noncompliance, organizations must ensure the security of their pipeline, as this guarantees the confidentiality, integrity, and availability of their cloud-native applications.

A secure CI/CD is the best way to ensure the continuous deployment of high-quality software, protecting data, systems, and bringing secure scalability.

Implementing a DevOps approach requires security awareness, attention, and patience. For a variety of reasons, such as lack of expertise, resistance to change, or simply human error, development teams can leave potential security vulnerabilities in the CI/CD pipeline, many of which can be found in the OWASP Top Ten.

Top 10 CI/CD Security Risks

By avoiding these mistakes, an organization's security posture can be noticeably strengthened:

Insufficient Flow Control Mechanisms

This issue typically arises when checks and controls are insufficient throughout the CI/CD pipeline. The lack of proper validation and authorization mechanisms opens the door for attackers to inject malicious code and bypass security measures, gaining unauthorized access/deployments. 

Why occurs: There are no strict rules and checks for transitions between pipeline stages.

Real-world effect: Lack of flow control allows attackers to:

  • alter pipeline stages

  • inject malicious code and bypass approvals

  • manage the order of task execution

Real-world impact: Malicious code is released without verification, often becoming the starting point for supply chain attacks.

Poor Identity and Access Management

This vulnerability allows actors to tamper with code, introduce vulnerabilities, or exfiltrate sensitive information, gaining unauthorized access to critical resources, such as source code repositories, build servers, or deployment environments.

Why occurs: Roles, rights and authentication were poorly configured.

Real-world effect: By gaining access to accounts or tokens, hackers can:

  • install their builds

  • modify configurations

  • read secrets and sensitive data

Real-world impact: Weak access management may grant full control over the delivery process, leading to malicious releases.

Dependency Chain Abuse

This vulnerability is exposed when hackers exploit flaws in how engineering workstations and build environments fetch code dependencies, enabling the fetching and local execution of malicious packages from public repositories.

Why occurs: No control and validation of external dependencies

Real-world effect: With this vulnerability, attackers can:

  • inject malicious dependencies

  • replace existing dependencies

  • exploit typosquatting

  • compromise packages

Real-world impact: Malicious code is automatically incorporated into assemblies, making them a common vector for supply chain attacks

Poisoned Pipeline Execution

Poisoned Pipeline Execution or PPE occurs during the build or deployment process when an attacker can compromise the CI/CD pipeline to execute malicious code or script, allowing them to manipulate software during build or deployment, leading to security breaches and system compromise.

Why occurs: Executing untested or user code without isolation or sandboxing.

Real-world effect: PPE allows attackers to modify the pipeline:

  • make changes via pull requests

  • modify configuration files

  • execute code in CI

Real-world impact: CI becomes a point of vulnerability for credentials and secrets, facilitating subsequent exploitation.

Insufficient Pipeline-Based Access Controls

The lack of proper authorization mechanisms within the CI/CD pipeline allows unauthorized access to critical components, enabling attackers to modify configurations and compromise the integrity of software during builds and deployments.

Why occurs: Not enough restrictions on actions within the CI/CD pipeline.

Real-world effect: Attackers benefit from excessive privileges to:

  • access production

  • read secrets and sensitive data

Real-world impact: Hackers gain access to the entire infrastructure by escalating privileges.

Insufficient Logging and Monitoring

If developers don't implement comprehensive logging, monitoring, and auditing, a lack of logging and visibility arises. This makes it more difficult to detect and address security incidents, identify anomalous behavior, track changes, and conduct investigations. This allows attackers to operate undetected.

Why occurs: The logs are either missing or no one is looking at them.

Real-world effect: This is a dangerous vulnerability that allows attacks to go undetected due to a lack of auditing for:

  • actions

  • modifications

  • access to secrets

Real-world impact: Attackers remain undetected in the system, causing security incidents to be detected when it's too late.

Improper Artifact Integrity Validation

This refers to the lack of checks to ensure the integrity and authenticity of software artifacts within the CI/CD pipeline, which allows for manipulation or replacement of artifacts.

Why occurs: If there are no signature and integrity checks, and the developers don't check what exactly is being built and deployed.

Real-world effect: Malicious actors gain the ability to:

  • exploit artifact integrity checks

  • substitute signatures and hashes

Real-world impact: End users use compromised binaries or images, making them vulnerable to breaches.

Ungoverned Usage of Third-Party Services

This CI/CD security issue involves integrating external services without proper security oversight and vetting, which creates risks to the integrity of the software, allowing hackers to attack these services to gain unauthorized access.

Why occurs: If security teams do not review source code and audit when integrating plugins and services.

Real-world effect: Attackers gain access to production or infrastructure, allowing them to:

  • access API keys and credentials

  • replace builds and artifacts

  • attack downstream systems and clients

Real-world impact: This vulnerability leads to data breaches through external/third-party services and can provide hackers with an entry point for a supply chain attack.

Insecure System Configuration

System misconfigurations often leave open ports, weak encryption, or unnecessary services, which open the door for hackers to perform malicious activities and access data.

Why occurs: Developers deploy systems without changing default configurations or making them too broad.

Real-world effect: Poor system configurations enable:

  • direct access to the system

  • lateral movement within the infrastructure

  • commands execution with elevated privileges

Real-world impact: Attackers gain control over builds and deployments, as well as access to other systems through privilege escalation, compromising the integrity of the product.

Insufficient Credential Hygiene

This common problem stems from poor secrets management, which can leak credentials and sensitive information, allowing attackers to escalate privileges, impersonate legitimate users, and compromise security.

Why occurs: Developers store tokens, credentials, and API keys in a repository without enabled rotation or a protected vault.

Real-world effect: Hardcoded credentials or leaked tokens allow attackers to:

  • access build systems

  • push malicious artifacts

  • impersonate internal services

Real-world impact: Many supply chain attacks started with exposed tokens in CI logs or repositories.

How Pipeline Attacks Actually Happen

After examining the hidden weak links, it becomes clearer how attackers bypass protection and gain unauthorized access. Developer errors, often quite simple and caused by carelessness, become open doors that an attacker can exploit.

Once malicious actors identify an unpatched or open vulnerability, they exploit it by replacing code, dependencies, or configuration in the CI/CD pipeline and then use privileges to perform actions. 

A typical CI/CD attack looks like this:

  1. Attacker finds exposed credentials or weak access control

  2. Gains access to CI environment or repo

  3. Injects malicious dependency or modifies build script

  4. Pipeline runs automatically and builds compromised artifact

  5. Artifact is deployed to production

At this point, the attacker doesn’t break your system, as your system deploys the attack itself.

<H2> CI/CD Security Best Practices

The first and most important thing to highlight is that not all practices are equal. Effective security isn't about a huge number of practices and tools, but rather about understanding the most vulnerable vectors and how attacks occur. Even if you only do one thing—fix access control and secrets management—you'll already make your CI/CD pipeline safer, since most breaches start there.

Let's look at practices in three categories: must-have (baseline security), advanced practices, and mature DevSecOps:

CI/CD Security Best Practices

Must-Have (Baseline Security)

These practices are mandatory to ensure the security of CI/CD pipelines:

Infrastructure as Code

Implementing IaC principles is among the best practices to protect the CI/CD pipeline by defining and managing configurations and infrastructure, ensuring consistency, version control, and expanding the ability to enforce security controls across different components.

Secure Coding Practices

This practice includes input validation, output encoding, proper error handling, and secure authentication and authorization mechanisms. By implementing coding practices, developers can keep dependencies relevant and prevent SQL injection, cross-site scripting (XSS), and buffer overflows. Additionally, organizations should conduct regular code reviews with a focus on security and training for teams.

Vulnerability Scanning

Thorough and regular scanning of code, dependencies, and infrastructure is a must-have. Vulnerability scanning is critical, allowing for the detection and analysis of CI/CD security threats before they become a real problem with costly consequences.

Secure Secrets Handling

Secret handling practices, such as encryption of secrets (at rest and transit), the implementation of strong algorithms, and least privileged access to secrets, help prevent the hardcoding of secrets in configurations or source code, significantly minimizing the risk of breaches.

Regular Dependencies Updates

Organizations can enforce security when working with dependencies (including third-party libraries, open-source components, and frameworks) by ensuring regular updates and patches to address any security vulnerabilities that may be discovered. Teams should leverage dependency management tools, thereby benefiting from automated updates and increased trust in the components they use.

Advanced Practices

These methods allow you to enhance your CI/CD protection:

Automated Security Testing

Test automation is among the most effective security practices. Integrating DAST/SAST tools into the CI/CD pipeline allows for automatic scanning of code and applications for misconfigurations, vulnerabilities, and gaps, providing critical information regarding security concerns.

Access Control Audits

The security team must conduct audits to review access controls. This is necessary to ensure that access privileges are assigned based on roles and to remove unnecessary rights and access for users who no longer need these extended privileges.

Continuous Monitoring

Implementing continuous monitoring is a key practice for CI/CD security. From logging and log analysis to intrusion detection systems, continuous monitoring tools provide real-time information and complete visibility and tracking, enabling the detection and prompt response to security incidents. This prevents unauthorized access attempts, instantly detects anomalies and unusual behavior, and sends alerts indicating compromise.

Mature DevSecOps

These practices are about implementing a DevSecOps approach to development:

Threat Modeling

This practice is a proactive approach to building CI/CD security. Threat modeling involves identifying, assessing, and mitigating threats and vulnerabilities through testing and analysis of the system's architecture, design, and functionality, taking into account attack vectors and potential application vulnerabilities that attackers would like to exploit. This approach also prioritizes security efforts, helping align security measures with the needs and context of the system.

Separation of Duties

Separation of duties aims to prevent unauthorized changes and minimize insider threat risks by implementing an approach where different individuals and teams assume responsibility for different stages of the CI/CD pipeline.

Integrating Security Without Slowing Delivery

One of the concerns organizations have when implementing a DevOps approach is the fear of losing speed due to a focus on security.

It's crucial to understand that security doesn’t slow down delivery. The speed problem arises from bad implementation. A well-designed CI/CD security:

  • runs in parallel

  • is automated

  • is invisible to developers

The most valuable practices to ensure the balance between speed and delivery are:

  • Shift-left Automation. Implement DAST, SAST, SCA, and other tools directly into the CI/CD pipeline to ensure speed of testing through automation.

  • Risk-based Prioritization. Prioritize vulnerabilities by their severity. Critical issues are addressed first, while less dangerous vulnerabilities can be added to the backlog to avoid disrupting processes.

  • Parallel Checks. Run tests and scans simultaneously with the build.

  • Ready-made Secure Configurations. Speed ​​up processes by eliminating regular manual configuration.

Transform Your CI/CD with Jappware’s Expertise

At Jappware, we deliver custom solutions, developing stable and secure software while organizing the entire development lifecycle so that security is maintained at every stage.

Most teams don't need more tools, but rather a better security architecture. And that’s where we can help. Cooperating with our security experts, your engineering teams can: 

  • identify real attack surfaces in their CI/CD pipelines

  • redesign pipelines with security built-in (not bolted on)

  • implement practices that scale without slowing delivery

If your pipeline is growing faster than your security, it’s time to fix that. Contact Jappware and learn more about CI/CD security and how you can scale your business without sacrificing development speed.