Kubernetes workloads are highly dynamic, ephemeral, and are deployed on a distributed and agile infrastructure. Application developers, DevOps teams, and site reliability engineers (SREs) often require better visibility of their different microservices, what their dependencies are, how they are interconnected, and which other clients and applications access them. This makes Kubernetes observability challenges unique.

Calico is the industry standard for Kubernetes networking and security. It offers a proven platform for your workloads across a huge range of environments, including cloud, hybrid, and on-premises. Given this incredibly wide support, why did we decide to create a course specifically about AWS?

In a recent post by ZDI, researchers found an out-of-bounds access flaw (CVE-2021-31440) in the Linux kernel’s (5.11.15) implementation of the eBPF code verifier: an incorrect register bounds calculation occurs while checking unsigned 32-bit instructions in an eBPF program. The flaw can be leveraged to escalate privileges and execute arbitrary code in the context of the kernel.

We’re excited to announce Calico v3.19.0! This release includes a number of cool new features as well as bug fixes. Thank you to each one of the contributors to this release! For detailed release notes, please go here. Here are some highlights from the release…

We are happy to announce that the latest release of Calico Enterprise delivers unprecedented levels of Kubernetes observability! Calico Enterprise 3.5 provides full-stack observability across the entire Kubernetes environment, from application layer to networking layer. With this new release, developers, DevOps, SREs, and platform owners get: For more information, see our official press release.

We are thrilled to announce the availability of Calico Enterprise 3.5, which delivers deep observability across the entire Kubernetes stack, from application to networking layers (L3–L7). This release also includes data plane support for Windows and eBPF, in addition to the standard Linux data plane. These new capabilities are designed to automate, simplify and accelerate Kubernetes adoption and deployment. Here are highlights from the release…

Since the release of CVE-2020-8554 on GitHub this past December, the vulnerability has received widespread attention from industry media and the cloud security community. This man-in-the-middle (MITM) vulnerability affects Kubernetes pods and underlying hosts, and all Kubernetes versions—including future releases—are vulnerable. Despite this, there is currently no patch for the issue.

In April 2020, MalwareHunterTeam found a number of suspicious files in an open directory and posted about them in a series of tweets. Trend Micro later confirmed that these files were part of the first cryptojacking malware by TeamTNT, a cybercrime group that specializes in attacking the cloud—typically using a malicious Docker image—and has proven itself to be both resourceful and creative.

The use of honeypots in an IT network is a well-known technique to detect bad actors within your network and gain insight into what they are doing. By exposing simulated or intentionally vulnerable applications in your network and monitoring for access, they act as a canary to notify the blue team of the intrusion and stall the attacker’s progress from reaching actual sensitive applications and data.

Tigera, in collaboration with Microsoft, is thrilled to announce the public preview of Calico for Windows on Azure Kubernetes Service (AKS). While Calico has been available for self-managed Kubernetes workloads on Azure since 2018, many organizations are migrating their .NET and Windows workloads to the managed Kubernetes environment offered by AKS.