CVE-2025-52914

Executive Summary

CVE-2025-52914 is a SQL Injection vulnerability in the Suite Applications Services component of Mitel MiCollab, affecting versions 10.0 through SP1 FP1 (10.0.1.101). An authenticated attacker can exploit insufficient input validation to execute arbitrary SQL commands, potentially leading to data exfiltration, privilege escalation, or lateral movement within the enterprise telephony environment. No public exploit code or patch is currently available, but the risk is elevated due to the critical nature of MiCollab in unified communications.

Supply Chain & Package Security

This vulnerability is not related to NPM, PyPI, Go, or Ruby packages. It affects a proprietary Mitel product (MiCollab) and its Suite Applications Services component. No open-source package dependencies are involved.

CVSS Breakdown & Threat Level

• CVSS Score: 0.0 (No official vector assigned)
• Attack Vector: Network (authenticated)
• Attack Complexity: Low
• Privileges Required: Low (authenticated user)
• User Interaction: None
• Scope: Unchanged
• Confidentiality Impact: High
• Integrity Impact: High
• Availability Impact: High
• Threat Level: High (based on impact and lack of patch)

Deep Dive & Mechanics

The vulnerability resides in the Suite Applications Services component, which handles REST API requests for features like presence, messaging, and directory services. The flaw is due to insufficient validation of user-supplied input in SQL query parameters. An authenticated attacker can inject malicious SQL statements by crafting specially formatted HTTP requests to the vulnerable endpoint.

Attack Flow:

1. Attacker authenticates to MiCollab (e.g., via a valid user account).
2. Attacker sends a crafted HTTP POST/GET request to the Suite Applications Services API endpoint (e.g., /suite/api/v1/users/search).
3. The application fails to sanitize the search parameter, allowing injection of SQL commands.
4. The injected SQL executes against the underlying database (likely MySQL or PostgreSQL), enabling data extraction, modification, or deletion.

Potential Impact:

• Exfiltration of user credentials, call logs, and configuration data.
• Privilege escalation to admin accounts.
• Lateral movement to other Mitel components (e.g., MiVoice Business).
• Denial of service via database corruption.

Vulnerable vs. Patched Code

No patched code is available. The vulnerable code pattern is typical of string concatenation in SQL queries:

Vulnerable (pseudo-code):

def search_users(search_term):
    query = "SELECT * FROM users WHERE username LIKE '%" + search_term + "%'"
    cursor.execute(query)

Patched (expected):

def search_users(search_term):
    query = "SELECT * FROM users WHERE username LIKE ?"
    cursor.execute(query, ('%' + search_term + '%',))

Exploitation & Lab Setup

Red Team

Prerequisites:

• Valid user credentials for MiCollab.
• Network access to the MiCollab server (port 443 or 8080 typically).
• Knowledge of the Suite Applications Services API endpoint.

Exploitation Steps:

1. Identify the vulnerable endpoint (e.g., via API documentation or fuzzing).
2. Craft a SQL injection payload in the parameter (e.g., search=admin' OR '1'='1).
3. Use a tool like sqlmap or manual HTTP requests to exploit.

Example Request:

POST /suite/api/v1/users/search HTTP/1.1
Host: micollab.example.com
Content-Type: application/json
Authorization: Bearer <valid_token>

{"search": "admin' UNION SELECT username,password FROM users--"}

Lab Setup:

• Deploy Mitel MiCollab 10.0.1.101 in a virtualized environment.
• Create a test user with low privileges.
• Use Burp Suite or Postman to send crafted requests.

Blue Team

Detection:

• Monitor for unusual SQL error messages in application logs.
• Look for HTTP requests with special characters (e.g., ', --, UNION) in API parameters.
• Use WAF rules to block common SQL injection patterns.

Hunting:

• Search for SELECT, INSERT, UNION in web server logs.
• Correlate authentication events with subsequent database errors.

Indicators of Compromise (IOCs)

• Network: HTTP requests to /suite/api/v1/* containing SQL keywords (UNION, SELECT, OR 1=1).
• Logs: Database error logs showing syntax errors or unexpected query results.
• File: Modified database tables or unexpected user accounts.
• Behavior: Unusual data export activity from the MiCollab server.

Detection Engineering

YARA Rule

rule CVE_2025_52914_SQLi_MiCollab {
    meta:
        description = "Detects SQL injection attempts against Mitel MiCollab Suite Applications Services"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-52914"
    strings:
        $s1 = "UNION" nocase
        $s2 = "SELECT" nocase
        $s3 = "OR 1=1" nocase
        $s4 = "/suite/api/v1/" nocase
    condition:
        all of ($s1,$s2,$s3) and $s4
}

Sigma Rule

title: SQL Injection Attempt Against Mitel MiCollab Suite Applications
id: 7a8b9c0d-1e2f-3a4b-5c6d-7e8f9a0b1c2d
status: experimental
description: Detects SQL injection patterns in HTTP requests to MiCollab Suite Applications Services
author: Valters IT
date: 2025-04-10
logsource:
    category: webserver
    product: apache
detection:
    selection:
        cs-uri-query|contains:
            - "UNION"
            - "SELECT"
            - "OR 1=1"
            - "'"
        cs-uri-stem|contains: "/suite/api/v1/"
    condition: selection
falsepositives:
    - Legitimate API usage with special characters (rare)
level: high

Suricata Rule

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"CVE-2025-52914 SQL Injection Attempt Against Mitel MiCollab"; flow:to_server,established; content:"/suite/api/v1/"; http_uri; pcre:"/(UNION|SELECT|OR\s+1=1)/i"; classtype:web-application-attack; sid:1000001; rev:1;)

Remediation & Mitigation

Immediate Actions:

1. Disable the Suite Applications Services component if not required.
2. Apply strict input validation and parameterized queries via a WAF or reverse proxy.
3. Restrict API access to trusted IP addresses only.

Long-term Fix:

• Await an official patch from Mitel. Monitor Mitel Security Advisories.
• Upgrade to a patched version once released.
• Conduct a full security audit of the MiCollab deployment.

Workarounds:

• Use a web application firewall (WAF) with SQL injection rules.
• Enable detailed logging for the Suite Applications Services and monitor for anomalies.

Valters IT