Confluence Web Installer Scanner

Confluence is a widely-used team collaboration software developed by Atlassian, utilized by companies and organizations for knowledge sharing and project management. It serves as a platform where teams can create, share, and collaborate on projects seamlessly. The software is popular among businesses due to its extensive plugin support and integration capabilities. It is typically deployed in server environments, both on-premises or in cloud infrastructures. Administrators use Confluence to manage permissions, user roles, and integrate it with other productivity tools. Its robust functionalities make it an integral tool for enterprise collaboration and documentation.

The vulnerability in question pertains to the installation page of Confluence, where a misconfiguration can lead to unauthorized exposure. During the setup process, sensitive configuration options could be accessible to unauthorized users. This exposure can occur if the installation pages remain publicly accessible after the initial setup. The configuration misstep allows potential attackers to assess how the Confluence instance is set up. This vulnerability highlights issues in initial configuration settings not being adequately secured. Addressing this requires ensuring that these steps remain internal and shielded from public networks.

Technical details about this vulnerability involve the exposure of setup pages, found at specific endpoints like "/setup/setupcluster-start.action." These pages contain options to choose deployment types and are intended for initial on-boarding. Vulnerable parameters involve those meant for internal use, exposed due to improper access control. This makes it crucial to apply restricted access policies promptly after setting up such environments. The endpoint’s accessibility without authentication exacerbates the threat, calling for immediate remediation. Conducting routine audits on network exposure for such endpoints is essential for security.

If this vulnerability is exploited, malicious actors could gain unauthorized insights into the server's installation configuration. This could lead to further exploitation attempts or leveraging this information for advanced persistent threats. Misconfigured installations can serve as entry points for system manipulations or lateral movement within networks. The exposure could result in the unauthorized downloading of potentially sensitive configuration files. Once attackers have this knowledge, they might utilize it to deploy further attacks on other interconnected systems. Therefore, controlling access and ensuring endpoints are not exposed is critical to maintaining system integrity.