Dzzoffice Cross-Site Scripting Scanner

Dzzoffice is a comprehensive management software tool used for project collaboration, document management, and organizational communication. It is widely adopted by businesses and organizations looking to streamline their operations and enhance collaboration between teams. Developed for use on various platforms, its web-based nature allows for easy access and deployment. Users enjoy its extensive customization options and integrate it into myriad workflows. With support for document editing, task allocation, and communication, Dzzoffice simplifies enterprise collaboration. Its popularity has made it a target for various security assessments to ensure its robustness.

Cross-Site Scripting (XSS) is a vulnerability that affects web applications by allowing attackers to inject malicious scripts into content provided to other users. The vulnerability can be exploited to execute arbitrary code in the context of another user's session. It is often used to steal user credentials, manipulate webpages, or redirect users to malicious sites. Attackers take advantage of insufficient input validation or output encoding to execute such attacks. The impact of XSS can be severe, particularly for applications that handle sensitive data. This vulnerability underscores the importance of rigorous security practices in web application development.

The technical detail of the vulnerability lies in the parameter manipulation, specifically the 'zero' parameter in Dzzoffice's web requests. The vulnerability is triggered by crafting payloads that are not properly sanitized or encoded during web requests. For instance, by injecting a script tag within the 'zero' parameter, an attacker can execute arbitrary JavaScript within a user's browser session. The endpoint "/index.php?mod=system&op=orgtree&do=orgtree" is known for its exposure to such payload manipulations. Validation of the input field 'zero' is critical yet insufficient in the current version, leading to potential script exploitation. Addressing this requires improved filtering and validation mechanisms.

When exploited, this XSS vulnerability can have significant impacts on the security of user data. Users may experience unauthorized access to their accounts, resulting in data theft or manipulation. Malicious actors could inject code that records keystrokes to capture passwords or private information. Additionally, they may redirect users to phishing sites or download malware onto their systems. Organizations risk reputational damage and potential legal implications if customer data is exposed. Therefore, addressing these vulnerabilities is crucial to maintain user trust and safeguard sensitive information.

REFERENCES

• https://github.com/zyx0814/dzzoffice/issues/183