Here’s a list of the potential list of vulnerabilities that can be used by people with dark intentions to breach sensitive information.
Over-fetching and under-fetching: This vulnerability can over-exhaust server resources. If the instructions to fetch data from GraphQL are improper, it can lead you to over-fetching (gets more data than requested) or under-fetching (gets less data than asked and makes the user request data several times).
Excessive data exposure: When the access control is misconfigured, it exposes the critical data. And if the server allows unauthorized access, then any hacker with sufficient skills can breach the data easily.
Nested queries issue: By default, there is no complexity limit, which allows you to ship complex queries. Now think of multiple complex queries nested that will acquire all the system resources, leading to slow response and even a potential DOS (Denial Of Service) attack.
Injections: GraphQL is nothing but a query language with user-supplied input which simply means if your API is not secure, it can be injected with malicious code, and your database, file system, and even the network and OS can be targeted.
GraphQL bombs: These were discovered in August 2022 and affect APIs that implemented GraphQL file uploads. This is a DOS (Denial Of Service) attack that involves sending many HTTP requests to the GraphQL endpoint.
Misconfigured HTTP headers: While it sounds like nothing, trust me, this can do a lot more damage than you think. If not configured properly, it can open gates for attacks like CSRF (Cross-Site Request Forgery), MIME sniffing, Man in the Middle attack, and a lot more.
Rate limiting is misconfigured or not configured: Rate limiting is nothing but limiting the number of queries the client can make in a specific time frame. And if not configured, that leads to a potential DOS threat!
Sounds scary? Isn’t it?
Now I will share some of the best tools you can use to find and fix GraphQL vulnerabilities and secure your server. Here’s a summary of the tools we will discuss.
If you’re looking for a free option and comfortable with limited features, then there’s nothing that beats the offering from graphql.security.
This is also a product from Escape so you can be assured of their tests and reliability.
And some of the key features include:
Up-to-date database of Escape
No registration required
Ability to check endpoint in a single click
So if you’re just getting started with your online business and have budget constraints, I would highly recommend using graph.security.
Qualysec GraphQL API Penetration Testing
Qualysec provides professional GraphQL API Penetration Testing and is a cybersecurity assessment service, so you can uncover vulnerabilities and fix them and be assured of all security issues.
And here are some interesting features that they provide:
Product analyzed for the OWASP Top 10 GraphQL API Testing to get protected against the most common threats.
Dynamic API testing.
Static API testing.
Software composition analysis.
Apart from security features, their report for vulnerability scan is outstanding as it includes a penetration report, retest report, Letter of attestation, and Security certificate.
AppCheck Security Scanning
Appcheck gives you complete assistance to test APIs, but not just that. It comes with multiple features like SPA crawling, endpoint discovery, and more.
But there’s more to it:
Saves time with practical workflow.
Compatible with Jira, TeamCity, and other development tools.
Discover zero days, plus 100,000+ known security flaws and full OWASP.
A pretty huge list of features. Isn’t it?
Synopsis API Security Testing
Synopsis has an API testing program that will automatically discover exposed endpoints of your application, and all of this will be running in the background continuously!
Still not enough to convince you? Here are some more amazing features:
Pinpoints flaws in code and data with visual mapping
Automatic vulnerable discovery
Threat and risk assessments
Bright Security API Testing
Bright security services are designed for modern microservice environments and provide seamless integration with SDLC, CI/CD, and git workflows so the vulnerabilities can be detected as easily as possible.
And here are some key features of Bright security:
Convenient CLI for developers
Vulnerabilities mapped to OWASP API Security Top 10
In this tutorial, I have explained the key GraphQL vulnerabilities and the best tools to find GraphQL vulnerabilities and fix them.
An old-school tech writer who has a distinctive mix of passions, including stress-testing hardware, advocating a vegetarian diet, and reading widely-ranging literary genres, all the while keeping a fit lifestyle at the gym.
Usha, the editor-in-chief of Geekflare, is a tech-savvy and experienced marketer with a Master’s degree in Computer Applications. She has over a decade of experience in the tech industry, starting as a software engineer and moving into digital… read more