S2W Threat Intelligence Center has released a high-level threat intelligence report detailing the vulnerability CVE-2024-8181 discovered in Flowise. As companies integrate AI tools into their business workflows, there is a risk of overlooking the security of LLMs. This highlights the need for caution regarding server compromises and sensitive information leaks stemming from vulnerabilities in open-source LLM-related platforms.

*What is Flowise? Flowise is an open-source platform for developing LLM apps.

✅ Report Title:

Analysis of LLM App Development Platform, Flowise Vulnerability: CVE-2024-8181

✅ Executive Summary:

- This report analyzes the vulnerability CVE-2024-8181, discovered in Flowise, which was patched on August 27, 2024.

- The vulnerability stems from insufficient verification of authentication checks within Flowise APIs, resulting in an Authentication Bypass vulnerability.

- Flowise versions below 2.0.6 are affected by this vulnerability.

- Through this vulnerability, attackers can remotely call arbitrary APIs, enabling actions such as arbitrary file writes and LLM data exfiltration.

📌 What are the specific details about CVE-2024-8181?

- CVE Number: CVE-2024-8181

- Disclosure or Patch Date: 2024-08-27

- Product: Flowise

- Vendor: FlowiseAI

- Confirmed Affected Version: Flowise < 2.0.6

- Patched Version: Flowise ≥ 2.0.6

- Reporter(Advisor): Rémy Marot (Tenable Research Team)

- Causes: Flowise provides APIs for creating and controlling apps that utilize LLMs. Some APIs, like the ping API for simple health checks, don’t require authentication, while others expose sensitive data such as API keys. In Flowise’s codebase, all APIs are set to require authentication by default, with exceptions made for APIs that don't need it. This vulnerability occurs due to flawed validation during the exception-handling process for unauthenticated APIs, allowing authentication bypass.

✅ Recommended Threat Detection and Mitigation Actions:

- This vulnerability is an Authentication Bypass caused by insufficient verification of authentication checks within Flowise APIs.

- If you are using a vulnerable version of Flowise, it is recommended to update to the latest version.

- If updating is not possible, follow these measures: Restrict access by implementing network access control, ensuring only approved networks can connect.

- For more details, refer to the full report. If needed, please use the link below to request the full report.

🧑‍💻 Report Author: S2W TALON (Updated. 2024-12-03)

👉 Contact us: https://s2w.inc/en/contact

*The full report is available upon request.