Graphql Strawberry Information Disclosure Scanner

Graphql Strawberry is a software library used for building GraphQL APIs in Python. It is utilized by web developers and companies looking to provide a flexible and efficient way to specify and execute queries on data servers. This software is particularly popular among teams that emphasize modern tooling and rapid prototyping in their development processes. Due to its integration capabilities, Strawberry can be used in microservices architectures and within larger frameworks or web applications that support GraphQL API integration. Its purpose is to simplify the development of GraphQL endpoints and enhance the ability to query complex datasets with ease. Strawberry is often chosen for its active development community and ability to accommodate custom plugins and extensions.

Information Disclosure is a vulnerability where the software unintentionally exposes sensitive data. It can result from a lack of proper controls on input and output processing within the application. Specifically, in Graphql Strawberry, information such as query status or particular error messages might be exposed through the API endpoints. This can provide attackers with insights into the application logic or underlying database structure. Such exposure might occur due to inadequate sanitization of responses or misconfigured security settings within the GraphQL API. Information disclosure vulnerabilities are critical as they can act as precursors to more severe attacks by informing malicious actors of the system's internal workings.

The vulnerability in Graphql Strawberry manifests when requests containing deprecated directives are made to API endpoints. If the server responds with specific error messages or status codes, it can unintentionally reveal application details. This occurs particularly in responses to specially crafted GraphQL queries that utilize deprecated directives. Failure to properly handle such scenarios may allow unauthorized users to infer sensitive information about the implementation details or schema. The commonly affected components include endpoints like '/graphql', '/api/graphql', and '/query'. Techniques such as inspecting HTTP response bodies and status codes are employed to detect these info leaks.

When exploited, an information disclosure vulnerability in Graphql Strawberry can lead to unauthorized revelation of sensitive information about the API endpoints and their configurations. This might provide attackers with enough intelligence to craft further targeted attacks, such as SQL injection or command injection. It can expose backend server names, versions, and possible misconfigurations, undermining security. Furthermore, attackers can use the disclosed information to perform reconnaissance for a more extensive attack on the application infrastructure. The overall integrity and confidentiality of the data might be compromised.

REFERENCES

• https://github.com/dolevf/graphw00f/blob/main/graphw00f/lib.py