Lightdash is an open-source business intelligence platform used by teams to build and share data insights. It is primarily used by data analysts and business intelligence teams for dashboard creation and visualization. The software integrates with data warehouses like BigQuery and Snowflake, providing an easy-to-use interface for non-technical users. This product allows collaboration on data insights, making it popular for team usage in data-driven companies. However, vulnerabilities like SSRF can expose sensitive session data, requiring secure configurations.
The SSRF vulnerability in Lightdash allows an attacker to exploit the dashboard export functionality. By embedding malicious HTML elements, a threat actor can force the software to make unauthorized HTTP requests to external domains. These requests contain sensitive information like session cookies, which can be intercepted. This vulnerability may result in the hijacking of user sessions, potentially leading to further security breaches.
The SSRF vulnerability exists within the dashboard export feature of Lightdash. Attackers can insert malicious iframe or image tags in the dashboard, which are triggered upon export. These HTML elements can send HTTP requests to external domains, embedding session cookies within them. The endpoint responsible for exporting dashboards fails to sanitize the content, allowing the malicious request. If exploited, an attacker can steal the exporting user's session cookie and hijack their session. This issue arises due to insufficient input validation during the export process.
If exploited, this SSRF vulnerability allows attackers to steal session cookies, leading to session hijacking. With a hijacked session, the attacker gains unauthorized access to the platform, potentially viewing or modifying sensitive data. Furthermore, this vulnerability could be a gateway for more significant exploits, including privilege escalation or unauthorized access to critical systems. The attack could also expose the platform to external threats by interacting with malicious domains.
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References:
- Ensure proper input sanitization in the dashboard export functionality.
- Restrict outbound HTTP requests to trusted domains only.
- Implement Content Security Policy (CSP) headers to prevent malicious HTML content from being executed.
- Monitor and rotate session cookies regularly.
- Update to a patched version of Lightdash that addresses this SSRF vulnerability.
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