Fanruan FineReport Server-Side-Request-Forgery Scanner

Fanruan FineReport is widely used by businesses and enterprises for creating dynamic and interactive reports. It is utilized by data analysts and IT professionals for its robust capabilities in report generation and data visualization. FineReport allows users to design reports with a high degree of flexibility, incorporating various data sources. Businesses across various sectors leverage FineReport to streamline their reporting processes and make data-driven decisions. It is especially popular in industries where data presentation and ease of access are critical. FineReport's ability to integrate with multiple platforms makes it a versatile choice for complex reporting needs.

The Server-Side Request Forgery (SSRF) vulnerability enables an attacker to abuse a server by sending unauthorized requests from vulnerable applications. This kind of vulnerability can lead the server to connect internally to services or externally to fetch resources from the internet, often leading to unauthorized data access. SSRF usually occurs when an application fetches a resource from a user-defined URL. The attacker crafts a malicious request to manipulate server behavior, potentially accessing sensitive data. Exploiting SSRF vulnerabilities can result in severe impacts such as unauthorized data access and systemic disruptions. Ensuring robust input validation frameworks can mitigate this threat effectively.

The SSRF vulnerability in Fanruan FineReport is found through certain endpoints like "/seeyonreport/ReportServer" and "/WebReport/ReportServer". The vulnerability arises when untrusted URLs are processed by the application, allowing an attacker to induce the server to make resultant requests on their behalf. The payload showcases a crafted GET request manipulating a resource parameter to interact with malicious endpoints. Server responses of status 200 confirm successful endpoint manipulation. This vulnerability is particularly critical as it allows attackers to manipulate backend interactions, which can uncover sensitive system information.

When successfully exploited, the SSRF vulnerability can have severe consequences for businesses using Fanruan FineReport. Attackers can potentially access internal services, circumvent network security controls, and access sensitive data meant to be protected by firewall setups. This could result in data breaches, unauthorized data alterations, and unauthorized access to internal systems. Organizations may suffer reputational damage and financial losses due to resulting security incidents. Organizations implementing security controls to manage such risks can better protect against unauthorized access and data leakage.