Sharepoint Exposure Scanner
This scanner detects the use of Sharepoint Exposure in digital assets. It identifies security misconfigurations that allow anonymous access to SharePoint Web Services.
Short Info
Level
Medium
Single Scan
Single Scan
Can be used by
Asset Owner
Estimated Time
10 seconds
Time Interval
10 days 22 hours
Scan only one
URL
Toolbox
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Sharepoint is widely used within organizations to facilitate collaboration, document management, and project coordination. It is employed by various departments to streamline communication and improve productivity. The software is utilized across multiple sectors, including government, education, healthcare, and private enterprises, for information sharing and workflow automation. It supports business processes by providing users with features like document libraries, lists, and web parts. Sharepoint is often integrated with other Microsoft applications, enhancing its utility in office environments. IT administrators configure and manage the platform to ensure it meets the organization's collaboration requirements.
The vulnerability involves improper configuration in Sharepoint, which can lead to unauthorized exposure. Specifically, anonymous users can access SharePoint Web Services, compromising the confidentiality of the data stored within. Such exposure can result in sensitive information being accessible to unauthorized individuals, posing data privacy risks. Misconfigured settings that do not restrict access permissions appropriately are the root cause of this vulnerability. It is crucial to configure SharePoint with strict access controls and validation mechanisms. Neglecting proper configuration can inadvertently provide attackers with an entry point to potentially sensitive data.
The technical details of the vulnerability revolve around the improper access configuration of SharePoint's services, particularly the lists.asmx endpoint. This endpoint, when improperly secured, can respond to unauthenticated requests with valid responses, revealing list structures or data. The parameters that handle user permissions are misconfigured, failing to enforce access controls. This weakness can be exploited by accessing specific web services designed for legitimate use within the software. Attackers can craft requests that trigger these endpoints, bypassing intended security restrictions. The vulnerability thus requires attention to fine-grain permission configurations and auditing of access logs.
When this vulnerability is exploited, unauthorized data access can occur, leading to information leakage and potential breaches of data protection regulations. Sensitive organizational data, including intellectual property, employee information, or financial records, might be exposed to unauthorized parties. Such data breaches can damage reputations, lead to legal ramifications, and entail substantial financial losses. Additionally, unauthorized access can result in data manipulation or deletion, disrupting business operations. It can also pave the way for further exploitation of other vulnerabilities within the security framework of the organization.
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