CVE-2024-41710 Mitel SIP Phones Argument Injection

CVE-2024-41710 is a notable security vulnerability affecting specific Mitel SIP phone models. Understanding its intricacies and implementing appropriate mitigation strategies is essential for organizations utilizing these devices.

CVE-2024-41710 Description

CVE-2024-41710 is a command injection vulnerability identified in Mitel’s 6800 Series, 6900 Series, and 6900w Series SIP Phones, including the 6970 Conference Unit, up to firmware version R6.4.0.HF1 (R6.4.0.136). The vulnerability arises from insufficient parameter sanitization during the boot process, allowing an authenticated attacker with administrative privileges to inject arguments. Successful exploitation enables the execution of arbitrary commands within the system’s context.

What is Vulnerable to CVE-2024-41710

The following Mitel devices are susceptible to this vulnerability:

• Mitel 6800 Series SIP Phones
• Mitel 6900 Series SIP Phones
• Mitel 6900w Series SIP Phones
• Mitel 6970 Conference Unit

Devices running firmware versions up to and including R6.4.0.HF1 (R6.4.0.136) are affected. Organizations should verify their firmware versions to assess exposure.

Mitigation and Remediation for CVE-2024-41710

To address this vulnerability, consider the following steps:

1. Update Firmware: Mitel has released patches to rectify this issue. Administrators should promptly upgrade their devices to the latest firmware version as provided in Mitel’s security advisory.

   mitel.com

2. Restrict Administrative Access: Limit administrative access to trusted personnel and ensure strong, unique passwords are in place to reduce the risk of unauthorized exploitation.

3. Network Segmentation: Isolate vulnerable devices from critical network segments to contain potential breaches.

4. Monitor for Suspicious Activity: Implement continuous monitoring to detect any anomalous behavior indicative of exploitation attempts.

Impact of Successful Exploitation of CVE-2024-41710

If exploited, this vulnerability allows attackers to execute arbitrary commands on the affected devices, leading to:

• System Compromise: Full control over the device, enabling unauthorized configurations or operations.

• Network Breach: Potential lateral movement within the network, compromising additional systems.

• Data Exfiltration: Unauthorized access to sensitive information processed or stored on the devices.

Notably, the Aquabot botnet has been observed exploiting this vulnerability to incorporate compromised devices into its network for Distributed Denial-of-Service (DDoS) attacks.

Proof of Concept for CVE-2024-41710

A proof-of-concept (PoC) exploit for CVE-2024-41710 was publicly released in August 2024. This PoC demonstrates how an attacker can leverage the vulnerability to execute arbitrary commands during the device’s boot process. The availability of this PoC has lowered the barrier for potential attackers, underscoring the urgency for affected organizations to implement mitigations.

In summary, CVE-2024-41710 presents a significant security risk to organizations using affected Mitel SIP phones. Prompt action to update firmware, restrict access, and monitor device activity is essential to mitigate potential exploitation.