With automated testing that includes the software dependencies, patches can be quickly tried and validated using existing tests. Another important set of information was the number of images and containers that didnt have any official team-owners listed. To mitigate the risk of running an image with security vulnerabilities, I will install the updates on the image and commit them. Connect and share knowledge within a single location that is structured and easy to search. In the final section of my series on creating a comprehensive security program around Docker, I'll be looking at some ideas and best practices around patching running containers. Containers are immutable, meaning that they should not be patched in place the way VM's or physical servers would be. You should receive an automated response notifying you that we received your info. We had the benefit of using our existing and stable pipelines for continuous deployment, which meant that additional deployments had minimal impact on our operations. Senior Technical Content Marketing Manager, Three rules for turning DevOps into DevSecOps, DevSecOps and CircleCI orbs: secure your CI/CD pipeline, How testing in the cloud delivers value to development teams. We made the initial progress that we could and moved onto the next phase. And restarting the containers using the new images. 2) It defeats the biggest advantage of (container) images: The image you run isn't the same you build/tests because you change packages on runtime. The packages you should have to update would be those that are a part of your DockerFile, and since you have the DockerFile, you should be able to to keep track of those packages and container IDs that need updates. Basically continuously updating and rebuilding all images as part of making new releases. This not only saves work but helps ensure everyone has the same understanding of the state of things. Copyright 2013-2022 Docker Inc. All rights reserved. We generated the first round of tickets by hand and assigned them to teams. The service had to normalize the weird data for all the different distros, libraries, and tools into something consistent. Tito Villalobos Containers are really no different in this respect - many teams become wary about destroying a running container that is working well. You have to rebuild image for say Apache when the security update affected only libpng for example. Building processes stringent enough to satisfy auditors without accruing massive overhead for our team and our engineering organization posed an interesting challenge. In addition, I have not yet found a reliable way to identify containers This makes it much easier for teams to comply. In traditional server-based environments admins or SREs maintain servers and deploy patches. So we built an integration pipeline that automated the biggest manual work for the security team. Invest in automation of vulnerability management. And we will inherit from this in a new image that we seek to deploy as our application: This image creates a shell script that prints out the version.txt file every 5 seconds. Staff Security Engineer. Now, we have the beginnings of a pipeline that will ship the latest OS patches with every code release (assuming the base images are kept up to date in their repositories). Engage with engineering teams using the tools and processes they already have in place. So none of these approaches seems satisfactory. After some back and forth, we added some additional details to our report and were able to design one report format that met the needs of our FedRAMP auditors as well as our internal stakeholders. 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We could tighten up time frames later, once we had repeatable processes. To install all the available updates using a single command, I will run the code below. One thing we learned at this stage was to avoid perfection. images to the patched version as soon as possible to remediate the issue. Create a single report that has the information needed for all stakeholders. Update the watch_base image to bump the version number and push it out to the repo. The collection of common updates is done inside that one image and then rolled out to all the specific services. We will first pull down and start the Jenkins container, then update it to work with Docker. A number of teams that received these tickets werent used to getting tickets from other teams, much less from the security team. Doing in-depth analysis and prioritization of vulnerabilities is expensive and time consuming for security teams. Giving group root to jenkins isn't something I would like to do, but is ok for our testing example. If you have 20 applications running on one docker host, you have to upgrade base images, rebuild and restart! If one is found, it can automatically stop, upgrade, and restart the container. A number of Docker Official Images contain the vulnerable versions of That necessarily includes the consideration of having other people at the company that can maintain the tooling. From the container, I will run the command below, which will check for updates. To learn more, see our tips on writing great answers. I live for privacy, security, and online freedom because these are the building blocks of a better society, one I want to help create. The process of taking data from the vulnerability scanner and turning it into tickets involved complex details that required us to use a real programming language. The Log4j 2 CVE-2021-44228 vulnerability in Log4j 2, a very common Java logging library, allows remote code execution, often from a context that is easily available to an attacker. The central principle at this stage is that quick feedback loops embedded in the development process help teams make it a part of ongoing activity instead of requiring large chunks of separately tracked work. What if you aren't releasing code at least monthly? Ethical implications of using scraped e-mail addresses for survey, At 3% inflation rate is $100 today worth $40 20 years ago. Let's setup a simple example to see how it works. Vulnerabilities are continually discovered in software packages, software libraries, operating systems and infrastructure. Which services had official owners, and which would we have to go find owners for? Log4j2 CVE in the vulnerability report. Both the source and destination APIs changed over time, quite significantly. 468), Monitoring data quality with Bigeye(Ep. Most DPR (Damage Per Round) Barbarian Build against Undead. Should I split up an application in multiple, linked, Docker containers or combine them into one? Log4j 2 CVE-2021-44228. The core principle at this stage is to make it easier to just apply the patch. Some development teams may need to acclimate themselves to doing security maintenance work related to the Docker images they use. This would generally be pulled down in a build step prior to building the docker image, but in our case we'll just place it there to make things as easy as possible. This is useful for example when security updates need to be applied urgently to packages provided by the platform without rebuilding the entire application. San Francisco? For detailed information, see CVE-2021-45449. may already mitigate this (see the Mitigations section below), or the things you More like San Francis-go (Ep. On a more personal note, working through this challenge is when the DevSecOps benefits of Docker finally clicked for me. Why would space traders pick up and offload their goods from an orbiting platform rather than direct to the planet? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. If your development teams are practicing DevOps, with automated integration and deployment solutions, and releasing production changes at least as frequently as your patch cycle, then full container patching can be baked right into that release process with no further effort. As you can see, I have a few updates that are available for installation. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. WatchTower is a ride-along container that monitors all running containers on a host for updates in their image. Valko, what workflow did you end up with? We are working on updating How does yum with Red Hat Network Subscription work inside the rhel Docker images? Our security auditor is an idiot. If your container has a security problem, you rebuild a version of the container that's patched and deploy the new container. Docker Hub security scans triggered after 1700 UTC 13 December 2021 are now Third, many compliance professionals and auditors arent deeply familiar with how this technical stack works and its ramifications for vulnerability management. What is the equivalent of the Run dialogue box in Windows for adding a printer? When rolling out vulnerability management, it is easy to get caught up in early concerns and enter firefighting mode. Vulnerability management is the ongoing process of scanning, classifying, prioritizing, and patching software vulnerabilities. No more patch rollouts! To handle this, we build abstraction layers around the APIs we integrated with, both Jira and our scanning tools. The configuration for the docker scan command previously shipped in Docker If you do want to try it out, I put together a simple example: We'll create a custom base image with a version file: We will push this out to a docker public repository called watch_base. Asking for help, clarification, or responding to other answers. Soft-version specification is done by simply specifying a major version or major + minor version of packages and letting the package manager automatically update to the latest versions as part of a scheduled Docker image build. You may not be vulnerable if you are using these versions, as your configuration There is also a lot of risk around mistakenly marking high severity vulnerabilities as not applicable in the environment. This notifies the security team if any additional configuration is needed. 469). Make the progress you can with the patches and teams that you are able to. If your organization is anything like the ones I have worked with, it wouldn't be surprising to find very old servers, operating systems, applications, and everything else. This only affects users if they are on Docker Desktop 4.3.0, 4.3.1 and the user has logged in while on 4.3.0, 4.3.1. I also include debug logging in case anything is wrong that you want to troubleshoot. By submitting this form, you are agreeing to our vulnerable for other reasons. You must update your Docker Desktop installation to This ran from normalizing moderate vs medium (easy), to every vendor having a different format for fixed in version (harder). You could even create a shell script that does that. The containers are supposed to be lightweight and interchangeable. log may not include any user input. If teams have not thought about challenges such as data migration and persistence, there may be a higher workload required to run a patch cycle. It took some work to explain that, in our case, every engineering team across the org would be doing patching. Only Docker support Engineers working on an active support case could have access to the diagnostic files, minimizing leakage risk from these files. Let's push this to a new public repo. WatchTower is not a final solution to the patching problem, but it is the best I have been able to find. The goal is to help them fit patching into existing workflows, not make new ones. CVE-2021-45046 and By integrating it into the CI/CD pipelines, vulnerability patching wouldnt have to be a big thing we did every month. But for seeing the full picture of your vulnerabilities, production scanning is required. The first fixed version is 2.15.0. Any systems that havent been patched in a while will take notably more time to clear up, so make sure to coordinate with teams and management as you do initial rounds of patching. I regularly post original security research, custom tools, and detailed technical guides. you trigger scans by pushing the image to Docker Hub to view the status of In the test directory you created, make a sample dockerfile to build. This is also where, as a developer, the benefits of Docker really came into focus for me. In these cases, we can consider using a tool like WatchTower to monitor and automatically upgrade our containers. This is often the case with containers such as database containers or fully baked application containers such as Wordpress containers. The pipeline runs a shell script to call docker, and passes the --pull parameter to force re-pulling base images. I wonder about it myself. This is handled automatically in SUSE Enterprise Linux using zypper-docker(1), First of all, many of your updates that you traditionally ran in the past will simply not be inside the container itself. Why do we use a OS Base Image with Docker if containers have no Guest OS? UDP traffic not forwarded from Docker containers -> Docker host, Docker change existing stack to start with user namespace but keep images, volumes and containers, Lake Irrigation System 220v & 110v needed at end of long run. Both the host and containers have their own, independent, sets of packages that need updating and updating on the host will not update any packages inside the containers. Cases, we Build abstraction layers around the APIs we integrated with, Jira... Development teams may need to be a big thing we learned at this stage is to make it easier just. How does yum with Red Hat Network Subscription work inside the rhel images. Quite significantly to all the specific services more personal note, working this! But for seeing the full picture of your vulnerabilities, production scanning required! You agree to our vulnerable for other reasons Exchange Inc ; user licensed. 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An automated response notifying you that we could and moved onto the next phase for the! Host, you have to upgrade base images, rebuild and restart container. New public repo these cases, we can consider using a tool like to... Cookie policy parameter to force re-pulling base images wary about destroying a running container that 's patched and deploy new! Workflow did you end up docker image security patches using existing tests ) Barbarian Build against.! Moved onto the next phase security research, custom tools, and patching software vulnerabilities, every team... You have to rebuild image for say Apache when the DevSecOps benefits of Docker really came into for... The patched version as soon as possible to remediate the issue, patches can be quickly tried and validated existing... The weird data for all the different distros, libraries, and passes the -- parameter!