External risk intelligence

Mitel MiVoice Connect Remote Code Execution Vulnerability

CVE advisoryKnown Exploit

CVE-2022-29499

Mitel MiVoice Connect's Service Appliance component contains a data validation flaw enabling remote code execution. This impacts organizations by allowing unauthorized code execution on affected systems, posing a business risk.

4Halo Surface Signal

Remote Code Execution

Mitel Mivoice Connect

22.20.2300.0 and earlier

External exposure likelihood

Halo Surface Signal score for CVE-2022-29499

The affected component is a Service Appliance for a communications platform. Such appliances are typically deployed as edge services or gateways to facilitate remote connectivity and communication, making them commonly reachable from the network edge or internet in many real-world deployments.

Horizon Alert

Summary of the vulnerability and why it matters

Mitel MiVoice Connect's Service Appliance component has a flaw that allows attackers to execute code remotely. This vulnerability stems from an issue with how the system validates data. Such a flaw could permit unauthorized code execution on affected systems.

  • Vulnerable service appliance
  • Incorrect data validation
  • Remote code execution impact

Attack Path

How an attacker could exploit the issue

The Service Appliance component in Mitel MiVoice Connect has an incorrect data validation vulnerability that can allow for remote code execution. This impacts organizations using the affected product by potentially exposing their systems to unauthorized access. Attackers can leverage this vulnerability to gain control over the system.

  • Exposure through network access.
  • Attacker sends malicious data.
  • System executes attacker code.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability presents a significant risk due to its potential for remote code execution. Attackers can exploit this flaw without needing any prior access or specific conditions to be met. The potential impact includes unauthorized access, system compromise, and data theft, necessitating immediate attention.

  • Attackers require no special skill.
  • No access or conditions needed.
  • High business risk, urgent action required.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in Mitel MiVoice Connect through 19.2 SP3 presents a significant risk, allowing for remote code execution. The Service Appliance component is susceptible due to improper data validation, potentially impacting system integrity and data confidentiality. Organizations should prioritize understanding their exposure and implementing mitigations to protect their environment.

  • Identify affected Service Appliances.
  • Reduce network exposure of appliances.
  • Apply vendor updates and verify.
  • Monitor for related activity.

Frequently asked questions

What is Mitel MiVoice Connect and its Service Appliance component?

Mitel MiVoice Connect is a communication platform. Its Service Appliance component, which includes models like SA 100, SA 400, and Virtual SA, is used to manage and facilitate communication services. This component is crucial for the operation of the MiVoice Connect system.

What is CVE-2022-29499 and its weakness?

CVE-2022-29499 is a vulnerability in Mitel MiVoice Connect's Service Appliance. The weakness is identified as CWE-20, which signifies improper input validation. This flaw allows remote code execution because the system does not correctly validate the data it receives.

How can an attacker exploit this vulnerability?

An attacker can exploit this vulnerability by sending specially crafted data to the vulnerable Service Appliance. The system's failure to properly validate this incoming data can lead to the execution of arbitrary code on the affected system, giving the attacker control.

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

Organizations using Mitel MiVoice Connect with affected Service Appliances should be concerned. Since these appliances are often deployed as edge services or gateways, they can be accessible from the network edge or internet, indicating a potential external exposure.

What is the first step for responding to this vulnerability?

The immediate first step is to identify which Service Appliances within your organization are running affected versions of Mitel MiVoice Connect. Following identification, it is recommended to reduce the network exposure of these appliances where possible and plan for applying vendor-provided updates.

References