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CVE-2021-44142: Critical Samba Vulnerability Allows Remote Code Execution

Recently, a critical out-of-bounds vulnerability, assigned to CVE-2021-44142, was disclosed in Samba versions prior to 4.13.17. The Samba vulnerability carries a critical CVSS of 9.9 and allows attackers to remotely execute code on machines running a Samba server with a vulnerable configuration. The vulnerability was disclosed as part of the Pwn2Own Austin competition where researchers are challenged to exploit widely-used software and devices with unknown vulnerabilities.

Our Solution for Scalable Multi-Region SaaS Deployment

Just like many other production DevOps engineering teams, our JFrog team deploys new version releases several times a day to AWS, Azure and GCP, across more than 20 cloud regions. This process used to take us many hours and could have even failed if it was done alongside maintenance by other teams.

Using authentication decorators in Flask

Has your team worked on an API and wanted (somehow) to implement more powerful security features? If you are dissatisfied with the level of security in an API, there are solutions for improving it! In this tutorial, I will lead you through the process of creating API endpoints that are secured with authentication tokens. Using these endpoints, we will be able to make requests to the Flask API only for authenticated users.

Don't Miss Out: Highlights from DevOps Cloud Days 2022

If you didn’t attend our recently concluded DevOps Cloud Days online conference, you missed a learning event that those who did called “fantastic” and “meaningful.” In written feedback, developers, operations staff, and security admins who attended described the presentations as “powerful,” “inspiring” and “excellent.” Fortunately, it wasn’t your last chance to share that fruitful experience with us.

From eBPF to CI/CD: 12 emerging trends in observability

As businesses accelerate digital transformations and cloud adoption to better serve customers and employees in the face of the global pandemic, operational complexity has also mounted. To untangle these complexities and enable executive visibility into IT ecosystem , business leaders are increasingly looking to observability solutions as a strategic investment.

CFEngine bootstrap with Ansible

CFEngine and Ansible are two complementary infrastructure management tools. Findings from our analysis show that they can be combined and used side by side with joint forces to handle all areas in the best possible way. Part of infrastructure management is hosts deployment, either when building a brand new infrastructure or when growing one by adding new hosts.

Design Considerations for Software Distribution to Edge & IoT Applications

Make no mistake: You can’t overlook software distribution in DevOps. At risk are the reliability, security and speed of your software releases — and your business itself. This is especially true in enterprises that are releasing across numerous edge endpoints or IoT devices. As your releases’ cadence and payload grow, software distribution challenges multiply, particularly at the edge.

Optimize your resource classes with the CircleCI resources dashboard

CircleCI cloud offers over 20 resource classes (varying CPU and RAM) across multiple execution environments. Finding the best resource class size for your job — not too big and not too small — can sometimes be a challenge. But now, you can view CPU and RAM usage for Docker executors within the UI. The new dashboard, found in the new Resources tab on the job details page, displays the CPU and RAM, for all parallel runs in your Docker job.

Let's talk engineering; building software by building community

For the past three years, I have been running and facilitating a community where folks from all levels and departments at CircleCI can come together to discuss diverse topics. We call it “Let’s Talk Engineering.” Some of the topics we’ve covered have been technical in nature, while others have focused more on leadership: how different teams operate, personal growth, and writing to name a few. Let’s Talk Engineering celebrates interdisciplinarity and multidisciplinarity.