Horizon Alert
Summary of the vulnerability and why it matters
This vulnerability in Flowise allows an unauthenticated attacker to run malicious commands on the server. The issue stems from Flowise not properly isolating code generated by a language model, which can be tricked into executing harmful instructions. This is a significant concern because it could lead to a complete compromise of the server hosting the Flowise application.
- Attackers can remotely execute code.
- Impacts servers running vulnerable Flowise versions.
- Enables unauthorized server control.
Attack Path
How an attacker could exploit the issue
An unauthenticated attacker can exploit this by sending a specially crafted prompt to a Flowise instance running an Airtable Agent node. This prompt manipulates the LLM into generating malicious Python code that the server then executes, allowing the attacker to run commands on the server.
- Target chatflow with Airtable Agent.
- Prompt injection for code execution.
- Unauthenticated access required.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability in Flowise allows unauthenticated attackers to execute arbitrary commands on the server by crafting malicious prompts that trick the LLM into generating and running a harmful Python script. While prompt injection can be complex, the direct execution of code on the server makes this a highly desirable target for attackers.
- Unauthenticated remote code execution is attractive.
- Prompt injection requires careful crafting.
- Critical flaw in LLM script evaluation.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Prioritize patching Flowise to version 3.1.0 or later to address the critical Python script execution vulnerability. If immediate patching is not feasible, isolate affected instances of Flowise from external network access and implement strict network segmentation to prevent potential command execution on the server.
- Apply Flowise version 3.1.0 or newer.
- Isolate affected Flowise instances.
- Monitor for suspicious outbound network activity.
