Reducing the attack surface
Posted: Sun Dec 22, 2024 6:49 am
Minimizing the attack surface has two benefits: increasing Indian WhatsApp Number the speed of service and reducing the likelihood of a security breach. Using multi-stage builds, you can create lightweight images with a small attack surface and improved boot time and performance. There are several solutions for this. If you are running Linux , you can use Alpine Linux, BusyBox, or Tiny Core Linux. For Ubuntu, there is Ubuntu Minimal. You can also use Scratch, a special Docker image — essentially an open-source container — to create minimalist images from the ground up.
Limiting container privileges
The principle used here is to provide the least privileges to perform a given task. When containers are run as root, they grant the user various privileges, such as installing packages or reading and writing the operating system. The risk is that if compromised, attackers can use privilege escalation while the container is running. There are two possible solutions to this. You can run containers in rootless mode or limit the capabilities of the LINUX kernel to only those necessary for the containers to run.
Secure Secret Management
Container and Docker configuration files should not contain secrets. Secrets include certificates, passwords, API keys, and tokens. While this is a best practice, it is common to see these secrets hardcoded during the build process or in source images. In such cases, sensitive data is leaked into containers and cached in intermediate container layers even after they are deleted. In such cases, it is best to deploy a secrets management solution such as AWS Secrets Manager and Vault to store and manage secret credentials.
Limiting container privileges
The principle used here is to provide the least privileges to perform a given task. When containers are run as root, they grant the user various privileges, such as installing packages or reading and writing the operating system. The risk is that if compromised, attackers can use privilege escalation while the container is running. There are two possible solutions to this. You can run containers in rootless mode or limit the capabilities of the LINUX kernel to only those necessary for the containers to run.
Secure Secret Management
Container and Docker configuration files should not contain secrets. Secrets include certificates, passwords, API keys, and tokens. While this is a best practice, it is common to see these secrets hardcoded during the build process or in source images. In such cases, sensitive data is leaked into containers and cached in intermediate container layers even after they are deleted. In such cases, it is best to deploy a secrets management solution such as AWS Secrets Manager and Vault to store and manage secret credentials.