CVE-2023-39293 in MiVoice Office 400 SMB Controller
Summary
by MITRE • 08/14/2023
A Command Injection vulnerability has been identified in the MiVoice Office 400 SMB Controller through 1.2.5.23 which could allow a malicious actor to execute arbitrary commands within the context of the system.
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Analysis
by VulDB Data Team • 01/24/2026
The Command Injection vulnerability in MiVoice Office 400 SMB Controller version 1.2.5.23 represents a critical security flaw that enables remote code execution with system-level privileges. This vulnerability resides in the controller's handling of user-supplied input within command execution contexts, allowing attackers to inject malicious commands that are subsequently executed by the system. The flaw stems from insufficient input validation and sanitization mechanisms within the application's processing pipeline, creating an avenue for arbitrary code execution that could compromise the entire system. The vulnerability affects versions up to and including 1.2.5.23, indicating a widespread issue that requires immediate attention from organizations utilizing this telephony infrastructure.
The technical exploitation of this vulnerability occurs when the system processes user input without proper validation, allowing attackers to append malicious commands to legitimate operations. This typically manifests through web interfaces or API endpoints where user-provided parameters are directly incorporated into system commands without adequate sanitization. Attackers can leverage this flaw to execute commands with the privileges of the affected service account, potentially escalating to full system compromise. The vulnerability's classification as command injection aligns with CWE-77 and CWE-88, which specifically address improper neutralization of special elements used in command execution. The attack surface extends beyond simple command execution to include potential privilege escalation, data exfiltration, and system persistence mechanisms.
From an operational standpoint, the impact of this vulnerability extends beyond immediate system compromise to encompass broader organizational security implications. The MiVoice Office 400 SMB Controller serves as a critical component in business telephony infrastructure, making it an attractive target for adversaries seeking to disrupt communications or gain unauthorized access to corporate networks. Successful exploitation could enable attackers to monitor phone communications, manipulate call routing, access sensitive business data, or establish persistent backdoors within the network. The vulnerability's remote exploitability means that attackers do not require physical access or network proximity to leverage the flaw, significantly expanding the potential attack vectors. Organizations relying on this system face increased risk of business disruption, regulatory compliance violations, and potential financial losses due to compromised communications infrastructure.
Organizations must implement immediate mitigations including applying available vendor patches, implementing network segmentation to isolate the affected systems, and deploying web application firewalls to monitor and filter suspicious command execution patterns. The remediation strategy should incorporate comprehensive input validation, output encoding, and privilege separation mechanisms to prevent similar vulnerabilities in future implementations. Security teams should conduct thorough vulnerability assessments to identify other potentially affected systems and implement monitoring solutions to detect anomalous command execution patterns. Additionally, the incident should trigger a broader security review of the telephony infrastructure, including access controls, authentication mechanisms, and network security policies. The vulnerability serves as a reminder of the critical importance of secure coding practices and regular security assessments in telecommunications systems, particularly those handling sensitive business communications. Organizations should also consider implementing network monitoring solutions that can detect unusual command execution patterns and establish incident response procedures specifically tailored to address telephony infrastructure compromises.