External risk intelligence

FXC Network Devices Allow Command Execution via Login

CVE advisoryKnown Exploit

CVE-2023-49897

Certain FXC network devices have a vulnerability allowing authenticated users to execute arbitrary OS commands, potentially leading to unauthorized system control and data compromise, posing a significant business risk. Organizations should prioritize addressing this vulnerability.

4Halo Surface Signal

OS Command Injection

Fxc Ae1021 Firmware

before 2.0.10

External exposure likelihood

Halo Surface Signal score for CVE-2023-49897

The affected products are network appliances (gateways/routers) which are typically managed via web-based administrative interfaces. Because these management interfaces are often exposed to the network to facilitate remote administration, the attack surface is commonly reachable in real-world deployments.

Horizon Alert

Summary of the vulnerability and why it matters

Certain network devices from FXC contain a vulnerability that allows for command injection. Exploitation of this flaw could permit an attacker with login access to execute arbitrary operating system commands. This could potentially lead to unauthorized system control and data compromise.

  • Vulnerable FXC network devices
  • Command injection flaw
  • Unauthorized system control and data compromise

Attack Path

How an attacker could exploit the issue

The vulnerability allows an attacker to execute arbitrary operating system commands on affected devices. This occurs when an attacker with login credentials exploits a flaw in the device's firmware. Successful exploitation enables the attacker to gain unauthorized control over the system, potentially impacting operations and data.

  • Requires authenticated access.
  • Attacker logs in to the product.
  • Attacker executes commands.

Live Threat

Current exploitation, exposure, and threat context

The identified vulnerability presents a significant risk due to the potential for an attacker to execute arbitrary operating system commands. This could allow unauthorized access and control over affected systems. The ease of exploitation, coupled with the potential for severe damage, suggests a high level of business risk. Organizations using the affected firmware should consider this a high-priority item.

  • Attackers with login credentials.
  • Network access required.
  • High business risk.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

An OS command injection vulnerability has been identified that could allow an authenticated attacker to execute arbitrary commands on affected devices. This could lead to significant disruption of business operations and potential data compromise. Organizations should prioritize addressing this vulnerability to protect their systems and data.

  • Find affected network devices.
  • Limit network access to devices.
  • Apply vendor updates and verify.
  • Monitor for unusual activity.

Frequently asked questions

What are FXC AE1021 and AE1021PE devices used for?

FXC AE1021 and AE1021PE are information outlet-based wireless LAN routers designed for use in homes, offices, and public facilities to provide a clean and space-saving wireless network environment. They can also be used as access points or routers.

What is the CVE-2023-49897 vulnerability, also known as OS command injection?

CVE-2023-49897 is an OS command injection vulnerability, classified as CWE-78. It occurs when an application doesn't properly handle user input, allowing an attacker to execute arbitrary operating system commands. This can lead to unauthorized system control and potential data compromise.

What are the conditions needed to exploit CVE-2023-49897?

Exploitation requires an attacker to have a login to the affected product. The vulnerability is triggered when malicious input is submitted through the device's management interface, allowing the attacker to execute commands.

Who should be concerned about this vulnerability based on its exposure?

Organizations that use FXC AE1021 or AE1021PE devices should be concerned. Halo's analysis indicates the affected products are network appliances with management interfaces that are typically exposed to the network for remote administration, increasing their attack surface.

What is the first step to address this vulnerability?

The primary step is to update the firmware of affected AE1021 and AE1021PE devices to version 2.0.10 or later. Additionally, performing a factory reset and changing the default management screen password is recommended.

References