External risk intelligence

Empire Path Traversal Leading to Remote Code Execution

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2024-6127

The vulnerability affects a command-and-control (C2) framework component designed to manage remote agents via HTTP. C2 infrastructure frequently requires public-internet-facing endpoints to maintain communication with agents deployed across external networks, making the service's primary function inherently internet-exposed in typical operational deployments.

Path Traversal

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A path traversal vulnerability in BC Security Empire could allow unauthenticated attackers to execute code remotely over HTTP. This issue affects a command-and-control framework commonly used to manage remote agents, potentially exposing systems to unauthorized control if relevant components are internet-facing.

  • Unauthenticated remote code execution risk.
  • C2 framework, potentially internet-exposed.
  • Confirm relevance and exposure.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending specially crafted upload requests over HTTP to a vulnerable command-and-control framework. This is possible because the framework may not properly sanitize file paths during uploads, allowing an attacker to traverse directories and potentially upload malicious files to sensitive locations on the server, leading to remote code execution.

  • Network access required.
  • Malicious path upload triggers.
  • Remote code execution risk.

Live Threat

Current exploitation, exposure, and threat context

A path traversal vulnerability in BC Security Empire could allow an unauthenticated attacker to execute arbitrary code on the affected system. This could occur when the system handles uploaded payload data, potentially leading to unauthorized control or modification of the server.

  • Remote code execution on the server.
  • Via crafted HTTP requests with malicious payloads.
  • Compromise of the affected server.

Operational Fix

Recommended remediation, mitigation, and detection steps

This critical path traversal vulnerability in BC Security Empire impacts systems that allow unauthenticated remote agents to upload data over HTTP. The primary responsibility for addressing this likely lies with platform or infrastructure teams managing the Empire C2 framework, in coordination with security and vendor management teams. The immediate first step is to identify all instances of the affected technology, determine their internet reachability and business criticality, and then engage the accountable owner to plan remediation, prioritizing the most exposed or critical systems.

  • Platform/Infrastructure teams own remediation.
  • Verify internet-facing Empire instances.
  • Plan targeted upgrades or risk reduction.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is BC Security Empire?

BC Security Empire is a command-and-control (C2) framework. Security professionals use it to simulate adversary behavior by managing remote agents across various networks. These agents communicate back to a central server to receive instructions and report data, effectively creating a controlled environment for testing and security operations.

What does CVE-2024-6127 mean for Empire?

This vulnerability involves path traversal (CWE-22) and improper file upload handling (CWE-434). In plain terms, the server fails to properly validate where a file is saved during an upload. Because it cannot restrict the path, an attacker can place files into unintended directories, ultimately achieving remote code execution on the underlying system.

How can an attacker trigger this vulnerability?

An attacker triggers this by mimicking a legitimate agent connection over HTTP. After completing the necessary cryptographic handshakes to appear authentic, the attacker submits an upload request containing a maliciously crafted path. Simply accessing the server without these valid handshake steps or omitting the malformed path data will not trigger the flaw.

Do I need to worry if my Empire instance is internal?

Halo Surface Signal notes that C2 frameworks often require public-facing endpoints to communicate with remote agents, which increases the likelihood of exposure. While internal-only instances face less risk from anonymous internet traffic, you should still care if any untrusted user or compromised asset within your network can reach the server's HTTP interface.

When should I take action for CVE-2024-6127?

You should prioritize this immediately if you operate Empire versions earlier than 5.9.3. Start by locating all instances within your environment and assessing their network reachability. Coordinate with your infrastructure teams to confirm the version in use and plan for an update to the secure version, focusing first on systems exposed to untrusted network segments.

References