Christian Wenz
Bullet-Proof APIs: The OWASP API Security Top Ten
#1about 2 minutes
Understanding the OWASP API Security Top Ten list
The OWASP API Security Top Ten list was created based on public incidents to raise awareness of common vulnerabilities.
#2about 2 minutes
Preventing broken object level authorization vulnerabilities
Attackers can access unauthorized data by guessing sequential IDs if proper permission checks are not implemented for every object.
#3about 5 minutes
Securing APIs against broken authentication flaws
Common authentication risks include misconfigured JWTs and weak secrets, which can be mitigated using the BFF pattern for single page applications.
#4about 3 minutes
Mitigating mass assignment and overposting attacks
Mass assignment vulnerabilities allow attackers to modify protected object properties by sending extra fields in an API request.
#5about 3 minutes
Preventing unrestricted resource consumption and DoS
APIs must implement rate limiting and validate parameters like page size to prevent denial-of-service attacks from excessive resource requests.
#6about 1 minute
Enforcing broken function level authorization
Authorization checks must be applied consistently across all API functions and HTTP methods to prevent unauthorized actions.
#7about 1 minute
Protecting sensitive business flows from API abuse
APIs can be exploited to manipulate business logic, requiring both technical and process-based countermeasures to protect core operations.
#8about 2 minutes
Understanding server side request forgery (SSRF)
An attacker can exploit an SSRF vulnerability to force a server to make requests to internal network resources that are otherwise inaccessible.
#9about 3 minutes
Avoiding security misconfigurations with HTTP headers
Proper configuration, including setting security-enhancing HTTP headers and removing revealing headers, is crucial for securing APIs.
#10about 1 minute
The importance of proper API inventory management
Failing to track all API versions and environments can lead to unmaintained and vulnerable endpoints that pose a significant security risk.
#11about 1 minute
Defending against unsafe consumption of third-party APIs
Treat data from third-party APIs with zero trust, validating and handling it as carefully as any other user input to build resilient applications.
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