Microsoft SharePoint Detection Scanner

Microsoft SharePoint is a web-based collaborative platform that integrates with Microsoft Office. It is primarily used for document management and storage but is highly configurable and can be used for various organizational purposes. Businesses and large enterprises utilize SharePoint to create websites, manage documents, and collaborate on projects. SharePoint allows for seamless integration with other Microsoft applications, enhancing productivity and communication within large teams. The software can be hosted on-premises or used as a cloud service, providing flexibility and scalability to meet different organizational needs. It is particularly favored for its integration capabilities with Microsoft products and robust security features, making it a popular choice for companies seeking an all-in-one collaborative platform.

The detection focuses on identifying if Microsoft SharePoint web services are exposed within a network. The vulnerability scanner checks for accessible SharePoint services, which might expose sensitive company information. Detection involves querying specific endpoints like the `/_vti_bin/spdisco.aspx` to confirm the presence of SharePoint services. This is a critical step in ensuring that configurations are secure and no unintended exposure of services exists. The concern is not about whether a vulnerability in the SharePoint code exists, but whether the service is actively exposed and potentially reachable by unauthorized parties. Ensuring web services are correctly configured can prevent information leakage and service misuse.

The scanner relies on specific criteria to determine the presence of SharePoint services. It performs an HTTP GET request to the endpoint `/_vti_bin/spdisco.aspx`, expecting a successful HTTP 200 status with a response containing specific XML tags such as `` and ``. The response's content type should be `text/xml`, confirming the nature of the resource as a web service discovery document. This method allows the scanner to verify the presence of SharePoint services without requiring extensive permissions or credentials. The technical approach ensures minimal network impact and avoids disruption of service, relying on passive detection methods.

Exposure of SharePoint web services without proper configuration can lead to possible information disclosure. Unauthorized users might gain insight into company operations, sensitive data, or web service APIs intended for internal use only. The exposure could serve as a foothold for attack vectors that exploit improperly configured services. This scenario can result in compromised confidentiality, integrity, or availability of the service and associated data. Organizations might face regulatory and compliance challenges if confidential information is leaked through exposed endpoints.