Why the cloud-native architecture required a new policy language I recently started a new series on the Open Policy Agent (OPA) blog on why Rego, OPA’s policy language, looks and behaves the way it does. The blog post dives into the core design principles for Rego, why they’re important, and how they’ve influenced the language. I hope it will help OPA users better understand the language, so they can more easily jump into creating policy of their own.

We’re back with part two of our three-part blog series on living-off-the-land attacks. If you missed part one, you can read it here. In a nutshell, living-off-the-land (LOTL) refers to a type of attack where the attacker uses the tools and features that already exist in the target environment to carry out malicious activities. The concept of LOTL is not new, but LOTL and file-less attacks have been gaining popularity over the last few months.

In this post we will talk about using image scanning on admission controller to scan your container images on-demand, right before your workloads are scheduled in the cluster. Ensuring that all the runtime workloads have been scanned and have no serious vulnerabilities is not an easy task. Let’s see how we can block any pod that doesn’t pass the scanning policies before it even runs in your cluster.

Anyone who has had any experience on the offensive side of security has had fun with privilege escalation. There’s something exciting about exploiting a system to the point of getting root-level access. Since I have spent most of my time on the defensive side of the fence, the magic of escalating privileges rested in Exploiting for Privilege Escalation or stealing an administrator’s credentials.