S4E

Office Documents Information Disclosure Scanner

This scanner detects the use of Office Documents Information Disclosure in digital assets. It focuses on extracting URLs from the body of web pages, specifically targeting links that end with common Office file extensions. This capability is valuable in identifying potential information leaks stemming from linked documents.

Short Info


Level

Informational

Single Scan

Single Scan

Can be used by

Asset Owner

Estimated Time

10 seconds

Time Interval

3 days 9 hours

Scan only one

URL

Toolbox

Office Documents, used widely by professionals, students, and individuals, serve to create, edit, and share various types of documents. Microsoft Office is often employed in corporate environments, educational institutions, and by personal users for purposes such as report writing, data analysis, and presentation creation. It is also used for email communication and publication tasks. The detection of their links on web pages can highlight exposed documents that could contain sensitive information. This usage underscores the importance of securing links that point to such documents to avoid unintended information disclosure. Office Documents are also integrated with platforms like cloud storage services and collaborative tools, increasing their accessibility but also the risk of exposure.

The detected vulnerability involves the extraction of links to Office Documents embedded within web pages. These links can point to files like Word documents, Excel spreadsheets, and PowerPoint presentations, revealing potentially sensitive information. Extracting such links can uncover information that may not be intended for public access. This detection is critical as it identifies where documents are being shared without proper access controls. It helps in auditing data leakage and pinpointing where sensitive business or personal information might be inadvertently exposed. Recognizing this vulnerability is a step towards enhancing security measures relating to document sharing and publication.

Technical details reveal that the extraction process targets web page bodies, searching for patterns that match URLs ending with typical Office file extensions like .docx, .xlsx, and .pptx. This involves the use of regular expressions to pinpoint potential information leaks. The matched URLs are likely pointing to files hosted either on the same domain or external storage resources. The extraction method is efficient in scanning large bodies of text for potential links without requiring deep content inspection. Furthermore, these technical measures facilitate the identification of improperly shared documents that could bypass document management or storage policies. It operates through simple HTTP GET requests, making it broadly applicable across different web platforms.

Potential effects of exploiting this vulnerability include unauthorized access to proprietary data, intellectual property leaks, and breaches of personal identifiable information (PII). Additionally, exposed links could be indexed by search engines, increasing the risk of public access. Malicious entities could exploit this to gather sensitive data for competitive intelligence, identity theft, or further phishing attacks. Organizations may face legal and reputational damages if confidential information becomes public. This highlights the need for rigorous data access controls and regular audits of link distributions.

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