External risk intelligence

Mitel MiVoice Connect Command Injection Vulnerability

CVE advisoryKnown Exploit

CVE-2022-40765

The vulnerability requires the attacker to already have authenticated access and be positioned within the internal network to reach the Edge Gateway component. While it involves a gateway, the requirement for pre-existing internal network access and authentication makes public internet exploitation unlikely in typical deployments.

Mitel Mivoice Connect

22.22.6100.0 and earlier

Halo Surface Signal: 2 out of 5 — less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

The Edge Gateway component within Mitel MiVoice Connect contains a flaw that could allow an authenticated user with internal network access to execute commands on the affected system. This is due to inadequate restrictions on URL parameters, which can be exploited to inject commands. The potential business impact could involve unauthorized command execution, leading to data compromise or system disruption.

Vulnerable component: Edge Gateway
Core weakness: Insufficient URL parameter restrictions
Main business impact: Unauthorized command execution

Attack Path

How an attacker could exploit the issue

An attacker could exploit a vulnerability within the Mitel MiVoice Connect Edge Gateway component. This would involve an authenticated individual who already has access to the internal network. By manipulating URL parameters, the attacker can execute commands, potentially leading to unauthorized control over affected systems.

Internal network access required.
Authenticated user triggers vulnerability.
Command injection grants control.

Live Threat

Current exploitation, exposure, and threat context

A vulnerability exists within the Edge Gateway component of Mitel MiVoice Connect. This issue could enable an attacker who already has internal network access and authentication to execute commands. Such an attack could lead to significant compromise of confidentiality, integrity, and availability for affected systems. The potential for command injection presents a considerable business risk, necessitating prompt attention.

Attacker skill: Moderate.
Access: Authenticated internal network access.
Business risk: High; treat as urgent.

Operational Fix

Recommended remediation, mitigation, and detection steps

The identified vulnerability in the Mitel MiVoice Connect Edge Gateway component presents a risk of command injection for authenticated users with internal network access. This could allow an attacker to execute unauthorized commands on the affected systems. Organizations should take immediate steps to understand their exposure and mitigate this risk.

Identify all instances of the Mitel MiVoice Connect Edge Gateway.
Restrict access to the Edge Gateway from internal networks.
Apply vendor updates and verify remediation.

Supplementary metadata

CVSS vector

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.

Free EASM Trial See How Signal Works

Frequently asked questions

What is Mitel MiVoice Connect?

Mitel MiVoice Connect is a business communication system that includes an Edge Gateway component. People use it for phone calls and other communication services within an organization.

What is the vulnerability in CVE-2022-40765?

CVE-2022-40765 is a command injection vulnerability. This weakness, classified as CWE-77, arises because the Edge Gateway component doesn't properly restrict URL parameters, allowing an attacker to insert and run commands.

How can an attacker trigger this vulnerability?

An attacker must first be authenticated and have access to the internal network. They can then exploit the weakness by manipulating URL parameters to inject commands into the system. Accessing the system from the public internet does not trigger this bug.

Who should care about this internal vulnerability?

Organizations using Mitel MiVoice Connect with an Edge Gateway component that is accessible from within their internal network should care. The Halo Surface Signal indicates this is an internal threat, meaning attackers need existing internal access.

What is the first step to respond to this threat?

The first step is to identify all systems running the Mitel MiVoice Connect Edge Gateway. Then, restrict access to this component from internal networks and plan to apply any vendor-provided updates to address the vulnerability.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.