CVE-2024-35286: Mitel MiCollab SQL Injection Vulnerability

CVE-2024-35286 Overview

A critical SQL injection vulnerability exists in the NuPoint Messenger (NPM) component of Mitel MiCollab through version 9.8.0.33. This vulnerability allows an unauthenticated attacker to conduct SQL injection attacks due to insufficient sanitization of user input. A successful exploit could enable an attacker to access sensitive information and execute arbitrary database and management operations, potentially compromising the entire collaboration platform.

Critical Impact

Unauthenticated attackers can exploit this SQL injection vulnerability to access sensitive data and execute arbitrary database operations, potentially leading to complete system compromise of Mitel MiCollab deployments.

Affected Products

• Mitel MiCollab versions through 9.8.0.33
• NuPoint Messenger (NPM) component within affected MiCollab versions

Discovery Timeline

• October 21, 2024 - CVE-2024-35286 published to NVD
• July 7, 2025 - Last updated in NVD database

Technical Details for CVE-2024-35286

Vulnerability Analysis

This vulnerability is classified as CWE-89 (SQL Injection), one of the most dangerous web application vulnerabilities. The NuPoint Messenger component fails to properly sanitize user-supplied input before incorporating it into SQL queries. This allows attackers to inject malicious SQL statements that are then executed by the database engine with the same privileges as the application.

The attack is particularly severe because it requires no authentication, meaning any network-accessible attacker can exploit the vulnerability. The potential impact includes unauthorized access to sensitive information stored in the database, modification or deletion of data, and execution of administrative operations on the database server. In enterprise communication systems like MiCollab, this could expose voicemail contents, user credentials, call records, and other sensitive business communications.

Root Cause

The root cause of this vulnerability is insufficient input validation and sanitization in the NuPoint Messenger component. User-supplied data is directly concatenated or interpolated into SQL queries without proper parameterization or escaping. This allows attackers to break out of the intended query structure and inject their own SQL commands.

Proper remediation requires implementing parameterized queries (prepared statements) that separate SQL code from data, ensuring that user input can never be interpreted as executable SQL commands regardless of its content.

Attack Vector

The attack is network-based and can be executed remotely without authentication. An attacker sends specially crafted HTTP requests to the NuPoint Messenger component containing malicious SQL payloads within user-controlled input fields. When the application processes these requests and constructs database queries using the unsanitized input, the injected SQL code executes on the database server.

The attack requires no user interaction and can be automated, making it highly exploitable. Successful exploitation grants attackers the ability to read, modify, or delete database contents, potentially extract credentials, and in some configurations, execute operating system commands through database features like xp_cmdshell or user-defined functions.

For technical details on exploitation, refer to the Mitel Security Advisory 24-0014.

Detection Methods for CVE-2024-35286

Indicators of Compromise

• Unusual SQL error messages in application logs from the NuPoint Messenger component
• Database queries containing suspicious patterns such as UNION SELECT, OR 1=1, or comment sequences (--, /**/)
• Unexpected database access patterns or queries accessing system tables
• Authentication bypass events or unauthorized access to voicemail or messaging data

Detection Strategies

• Deploy web application firewalls (WAF) with SQL injection detection rules targeting the NuPoint Messenger endpoint
• Implement database activity monitoring to detect anomalous query patterns and unauthorized data access
• Enable detailed logging for the MiCollab application and monitor for SQL injection attack signatures
• Utilize intrusion detection systems (IDS) with signatures for common SQL injection payloads

Monitoring Recommendations

• Monitor NuPoint Messenger HTTP access logs for requests containing SQL metacharacters and injection patterns
• Configure alerts for database errors or exceptions originating from the NPM component
• Establish baseline database query patterns and alert on deviations
• Review authentication logs for successful logins without corresponding valid credential submissions

How to Mitigate CVE-2024-35286

Immediate Actions Required

• Update Mitel MiCollab to a patched version that addresses CVE-2024-35286 immediately
• If patching is not immediately possible, restrict network access to the NuPoint Messenger component to trusted networks only
• Deploy web application firewall rules to block common SQL injection patterns targeting NPM endpoints
• Enable enhanced logging and monitoring to detect exploitation attempts

Patch Information

Mitel has released a security update addressing this vulnerability. Organizations should consult the Mitel Security Advisory 24-0014 for specific patch versions and installation instructions. Given the critical severity and network-accessible attack vector, applying the patch should be prioritized as an emergency change.

Workarounds

• Implement network segmentation to restrict access to the MiCollab server from untrusted networks
• Deploy a web application firewall (WAF) with SQL injection protection in front of the MiCollab deployment
• Disable or restrict access to the NuPoint Messenger component if it is not required for business operations
• Apply principle of least privilege to database accounts used by the MiCollab application to limit potential damage

# Example: Restrict network access to MiCollab server using firewall rules
# Allow only trusted management networks
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP

# Note: Adjust IP ranges and ports according to your network architecture
# This is a temporary mitigation - patching is the recommended solution