CVE-2025-47188 Scanner

The Mitel 6000 Series, including SIP Phones and Conference Units, is widely used in corporate environments for efficient communication through Voice over IP (VoIP). These devices are typically deployed by IT solutions providers and administrators to offer reliable telephone services over a network. The phone systems are designed to integrate with existing telephony infrastructures, providing a flexible communications solution. Corporations utilize these systems to enhance internal and external communication, improve customer service, and reduce telecommunication costs. Due to their user-friendly interfaces and compatibility with various communication protocols, these Mitel devices are favored in many office settings. They are also essential for conference settings, where multiple participants need to communicate simultaneously.

The OS Command Injection vulnerability allows attackers to execute arbitrary commands on the host operating system of vulnerable Mitel devices. This security flaw arises due to insufficient validation and sanitization of user inputs, enabling an attacker to craft malicious requests designed to interact with the system shell. By exploiting this vulnerability, unauthenticated attackers could gain access, execute system-level commands, and potentially control affected devices remotely. This could further lead to unauthorized information disclosure or denial of service attacks. It's crucial for network administrators to be aware of this vulnerability to protect their systems from potentially severe breaches. Regular updates and patches issued by Mitel should be applied to mitigate the risks associated with this vulnerability.

The vulnerability particularly affects endpoints such as the '/cgi-bin/webconfig?page=upload_ringtone&action=submit' path on the affected devices. Exploitation involves sending crafted HTTP POST requests with multipart form data that triggers command execution on the device. Specific parameters, including 'upload_ringtone/newfile' and abusive file upload techniques, allow the injection of OS commands. By targeting these endpoints, attackers infiltrate the system to execute commands via shell access, using techniques like environment variable interpolation and file manipulation. Detection is typically confirmed by observing responses or changes in the device's behavior following a probe or attack.

Exploitation of this vulnerability can lead to significant security risks, including unauthorized remote access to the device, execution of arbitrary system commands, and potential information leakage. Malicious actors could utilize this access to conduct reconnaissance, deploy malware, or launch further attacks on network infrastructure. It may compromise not only the affected device but also other systems within the network. Business operations relying on these phones may face disruptions, and sensitive communications may be intercepted, leading to financial and reputational damage. Hence, protecting these systems from unauthorized command execution is critical for maintaining operational security.

REFERENCES

• https://labs.infoguard.ch/posts/cve-2025-47188_mitel_phone_unauthenticated_rce/
• https://nvd.nist.gov/vuln/detail/CVE-2025-47188