Horizon Alert
Summary of the vulnerability and why it matters
An unauthenticated vulnerability in FastGPT's agent-sandbox component allows anyone with network access to execute arbitrary code on the system. This occurs because the service starts without authentication and is accessible from any network interface. This could allow unauthorized individuals to gain full control over the sandbox environment.
- Bypasses authentication.
- Allows full control of the sandbox.
- Affects FastGPT versions before 4.14.13.
Attack Path
How an attacker could exploit the issue
An attacker with network access to the FastGPT agent-sandbox can exploit this vulnerability to achieve unauthenticated remote code execution. The service binds to all interfaces with authentication disabled, allowing anyone who can reach port 8080 to take full control of the sandbox environment. This could allow an attacker to compromise the server running FastGPT.
- Network access to port 8080 required.
- Unauthenticated startup script exploitation.
- Bypasses sandbox security.
Live Threat
Current exploitation, exposure, and threat context
The FastGPT agent-sandbox vulnerability presents a significant risk due to its unauthenticated RCE. Attackers would favor this vulnerability for its ability to gain complete control over a sandbox environment without needing prior access or credentials. However, the threat landscape is somewhat limited as this is an internal component rather than a public-facing service.
- Vulnerable component is internal.
- Patch is available.
- Exploitation is unconfirmed.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
Prioritize patching FastGPT to version 4.14.13 or later to address the unauthenticated RCE vulnerability. If immediate patching is not feasible, implement network segmentation and strict access controls to isolate the affected agent-sandbox component.
- Patch FastGPT to version 4.14.13.
- Restrict network access to the sandbox.
- Monitor sandbox for suspicious activity.
