External risk intelligence

Aigital Router RCE via SysCmd Parameter.

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2023-30404

The vulnerability affects a wireless repeater/router, which is a network infrastructure device. Such devices are commonly deployed at the edge of networks to manage traffic and extend connectivity, making them frequently exposed to the network interfaces they are intended to bridge or manage.

Code Injection

Aigital Wireless N Repeater Mini Router Firmware

0.131229

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 remote code execution flaw has been identified in certain network devices that could allow an attacker to remotely control the device. The main concern is to confirm if these devices are present in our environment and if so, to understand their exposure.

  • Remote control vulnerability in network devices.
  • Confirms relevance and exposure of network devices.
  • Understand our network device footprint.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by sending a specially crafted HTTP request to a vulnerable Aigital Wireless-N Repeater Mini_Router. This request targets the `sysCmd` parameter within the `formSysCmd` function, potentially leading to remote code execution. The exposure of this device to a network makes it a potential target for such attacks.

  • Requires network access to the device.
  • Triggered by a malicious HTTP request.
  • Risk of remote code execution.

Live Threat

Current exploitation, exposure, and threat context

A remote code execution vulnerability in the Aigital Wireless-N Repeater Mini Router could allow an unauthenticated attacker to compromise the device by sending a specially crafted HTTP request. This could affect the device's operation and potentially allow unauthorized commands to be executed.

  • Device operation and integrity at risk.
  • Exploitable via crafted HTTP requests.
  • Unauthorized commands could be executed.

Operational Fix

Recommended remediation, mitigation, and detection steps

The Infrastructure or Network Operations team is likely responsible for this device, as it appears to be a network edge device. The first practical step is to locate all deployed instances of this device, confirm its network exposure, and identify the business criticality and ownership of each instance before planning remediation.

  • Infrastructure or Network Operations owns this.
  • Verify device presence and exposure.
  • Plan remediation based on risk.

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 the Aigital Wireless-N Repeater Mini_Router?

This device is a compact networking tool designed to extend the range of an existing Wi-Fi signal. It functions as a bridge or router, typically placed at the edge of a home or small office network to relay traffic between wireless clients and the primary network connection.

What does CWE-94 mean for CVE-2023-30404?

CWE-94 refers to improper control of generation of code, often called code injection. In this CVE, it means the device incorrectly handles inputs, allowing an attacker to insert and execute their own unauthorized commands. Essentially, the software can be tricked into running code it was never intended to process.

How is this RCE triggered?

An attacker triggers this vulnerability by sending a specifically formatted HTTP request to the device. The request targets the 'sysCmd' parameter used by the 'formSysCmd' function. This bug is not triggered by normal wireless traffic or general device usage; it requires that specific, maliciously crafted command sequence to be sent to the vulnerable function.

Is my device at risk based on Halo Surface Signal?

Halo Surface Signal indicates this is a high-relevance issue because this software is a network infrastructure device. Since these repeaters are designed to bridge network interfaces, they are frequently positioned where they are reachable from the network, increasing the likelihood that they are exposed and accessible to external requests.

What should I do if I have this router?

Your first step is to identify where these devices are installed within your network. Work with your network operations team to confirm if any of these units are active. Once you have a list of deployed devices, assess their network reachability and determine if they are still required for business operations before planning further steps to mitigate the risk.

References