OfficeWeb365 Arbitrary File Read Scanner

OfficeWeb365 is a cloud-based software suite used primarily by businesses and educational institutions for creating, editing, and managing documents online. It serves as an alternative to traditional office software, providing accessibility and collaboration tools necessary for remote work and study. With a focus on convenience and real-time collaboration, OfficeWeb365 is used in sectors that require rapid document sharing and teamwork. It facilitates integration with various file types and allows users to access documents anytime, anywhere via an internet connection. The platform is particularly popular among users who prefer lightweight applications without the need for local installation. Overall, it is designed to help users streamline document processing activities in a modern, digital environment.

An Arbitrary File Read vulnerability in software like OfficeWeb365 can pose a significant threat as it allows unauthorized users to view files that should normally be restricted. This vulnerability arises when the software does not adequately validate input paths or sanitize parameters, allowing attackers to retrieve sensitive files. Commonly targeted for this vulnerability are files outside the intended scope of access like configuration files or databases containing personal information. Exploiting this flaw could lead to unauthorized information disclosure, potentially causing severe privacy issues or data breaches. Addressing and mitigating this vulnerability is crucial to maintain the trust and safety of users leveraging the software for sensitive document management. Organizations must prioritize efforts to patch such vulnerabilities to safeguard their data and operations.

The vulnerability in OfficeWeb365 resides in insufficient input validation within the Indexs interface, specifically with path traversal possibilities in the `/Pic/Indexs` endpoint. Attackers may craft a URL that accesses arbitrary files on the server by manipulating the `imgs` parameter. By leveraging crafted requests, a malicious actor could potentially exploit this flaw to read sensitive files provided the application returns content upon HTTP 200 responses. For detection, responders should analyze network activity for unusual or unauthorized file access requests, indicating potential malicious uses of this vulnerability. System logs should be carefully monitored for any path traversal attempts that might suggest exploitation. By identifying these patterns, organizations can intercept and investigate unauthorized access attempts early.

When this vulnerability is exploited, bad actors can gain access to sensitive information stored within the OfficeWeb365 application. They may retrieve confidential documents, private keys, or credentials inadvertently left accessible on the server. Such an access level might lead to further exploitation or pivoting attacks, compromising additional systems or data sets. The privacy and integrity of client data can be severely impacted, leading to potential financial and reputational damages. Moreover, this exploitation may set a precedent for attackers to continuously target the organization’s infrastructure, heightening the need for immediate security measures. Overall, exploited arbitrary file read vulnerabilities can cause significant operational and data security disruptions.

REFERENCES

• https://github.com/wy876/POC/blob/main/OfficeWeb365_%E4%BB%BB%E6%84%8B%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.md