We believe that fuzz testing can immediately help certain use cases and segments more so than others. To this end, we have prioritized the list of use cases we want to focus on below.
Web APIs are a natural fit for us to address with fuzz testing. GitLab has many users with this use case who use our product already. It will be a short jump for them to add fuzz testing.
Web API providers will already have or can easily create OpenAPI definitions, Postman collections, and HAR recordings from their existing tests. This will allow them to add fuzz testing to their apps with minimal effort.
We can lean on our core strengths to bring fuzz testing to this use case and we will have a large number of existing users we can start to get feedback from.
Another benefit of this is that GitLab will be able to begin dogfooding this very quickly, as we publish many web APIs ourselves.
Traditional web based applications are a set of use cases where fuzz testing can add a lot of value. Similar to APIs, GitLab has many existing users with the use case we can lean on to get rapid feedback and help us to iterate quickly.
Users with traditional applications can easily create HAR files for fuzz testing as part of their normal test suites, with minimal extra steps. By making it easy to add fuzz testing to web apps, GitLab can encourage a lot more adoption.
Security research and penetration testing firms generally make use of fuzz testing in some form or another as part of their test engagements. GitLab has a large opportunity in this market with our fuzz testing solution to begin working with these organizations.
Specifically, GitLab can provide value with our existing product to help security firms manage their repositories and pipelines, as part of a single DevOps application. What will really differentiate us here though is that our fuzz testing technology will live inside GitLab. This will help these orgs work more effectively, as opposed to having to use a standalone fuzz testing product and then being required to manually interface with their SCM tools to store and update results.
GitLab has an opportunity to introduce fuzz testing as a new piece of technology to the medical device and regulated hardware industry. Because these devices can cause serious injury if they malfunction, the ability to find bugs with fuzz testing before they are found in the field will resonate quite well.
This will be a tougher set of use cases to enter for a number of reasons. Because these industries are already very regulated, they likely have very mature workflows, which GitLab would need to find a way to make ourselves a part of. We have an opportunity to introduce GitLab as a single application for their whole DevOps lifecycle, which will help these companies move quicker in addition to providing them fuzz testing, but this will take time.
Because this is a relatively new space for GitLab, we need to be cognizant of the time needed to enter the space, but it is quite a large opportunity. To make sure we can move forward iteratively, we will attempt to find an initial user to work with and make sure we understand the medical and regulated device use cases and workflows. Once they are successful, we can then use them as a case study for additional companies.
Similar to medical devices, introducing fuzz testing as part of automotive systems is a big opportunity for GitLab. Automotive systems undergo long testing cycles before deployment into production, which means they can take advantage of long, "soak-test" fuzz testing sessions to find bugs.
A potential challenge for this use case will be ensuring our fuzz test and GitLab platform fit the existing technology stacks that automotive manufacturers use. To ensure that we are successful in this space, we will canvas several different automotive customers, learn more about their specific technology stacks, and work closely with one we are compatible with as part of a future iteration. Based on the results and feedback, we can then decide to either expand into additional technology stacks or to focus more on the ones we already have.
A broad and challenging domain we can bring fuzz testing to is the embedded device space. These hardware devices typically connect to sensors and control units over specific interfaces, some of which are not always secured before being deployed. Fuzz testing can provide the ability to locate these bugs and vulnerabilities before deploying the devices.
Embedded devices generally will have toolchains that are less commonly used than web or desktop software, since those toolchains are intended solely for developing hardware-based applications. This means that fuzz testing will provide a large amount of value since the platforms have not been as rigorously tested by as many people, but also will present GitLab a challenge in that there will be far more choices than we can realistically support.
To ensure we can be successful in this space, we will start with hardware devices that communicate over channels and protocols that are close to our existing fuzz testing tools and do not require the use of custom hardware to communicate. Devices that speak HTTP over a wired or wireless connection are a good example of what we could quickly target. Devices that use a proprietary hardware interface with a proprietary protocol GitLab does not support are a good example of the type of devices we would not attempt to start with.