CVE-2024-5678: ManageEngine Applications Manager SQLi

CVE-2024-5678 Overview

Zohocorp ManageEngine Applications Manager versions 170900 and below contain an authenticated SQL Injection vulnerability in the Create Monitor feature. This vulnerability allows authenticated administrators to inject malicious SQL queries through the application's monitoring configuration interface, potentially enabling unauthorized data access, modification, or corruption of the underlying database.

Critical Impact

Authenticated administrators can exploit this SQL Injection vulnerability to access, modify, or delete sensitive data within the ManageEngine Applications Manager database, potentially compromising monitored infrastructure information and application credentials.

Affected Products

• Zohocorp ManageEngine Applications Manager version 17.0 (builds 170000 through 170900)
• Zohocorp ManageEngine Applications Manager version 16.8 (builds 16800 through 16843)
• Zohocorp ManageEngine Applications Manager all versions up to and including 170900

Discovery Timeline

• August 1, 2024 - CVE-2024-5678 published to NVD
• August 15, 2024 - Last updated in NVD database

Technical Details for CVE-2024-5678

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists within the Create Monitor feature of ManageEngine Applications Manager. The vulnerability requires administrative authentication to exploit, which limits the attack surface to trusted users with elevated privileges. However, in scenarios involving compromised admin accounts, insider threats, or chained attacks that first achieve privilege escalation, this vulnerability presents a significant risk to data integrity and confidentiality.

The Create Monitor feature accepts user-controlled input that is not properly sanitized before being incorporated into SQL queries executed against the backend database. This improper input validation allows an attacker to manipulate the query structure and inject arbitrary SQL commands.

Root Cause

The root cause of this vulnerability is improper input validation and insufficient parameterization of SQL queries within the Create Monitor functionality. User-supplied input is concatenated directly into SQL statements without proper escaping or the use of prepared statements with parameterized queries, violating secure coding practices outlined in CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).

Attack Vector

The attack is conducted over the network and requires authenticated access with administrative privileges. An attacker with valid admin credentials can navigate to the Create Monitor feature and inject specially crafted SQL payloads through input fields that are processed by the vulnerable backend code.

The exploitation process involves:

1. Authenticating to the ManageEngine Applications Manager with administrator credentials
2. Accessing the Create Monitor feature within the application
3. Inserting SQL injection payloads into vulnerable input fields
4. Observing the application's response to confirm successful injection and extract or manipulate data

Since the vulnerability requires high privileges (admin access), the practical exploitation scenarios typically involve compromised administrator credentials, malicious insiders with admin access, or as a post-exploitation technique in a multi-stage attack chain.

Detection Methods for CVE-2024-5678

Indicators of Compromise

• Unusual or malformed entries in database query logs associated with the Create Monitor feature
• Unexpected database errors or exceptions in application logs indicating SQL syntax issues
• Evidence of data exfiltration or unauthorized database modifications by admin accounts
• Anomalous activity patterns from administrator accounts, particularly related to monitor creation workflows

Detection Strategies

• Monitor application logs for SQL-related error messages that may indicate injection attempts
• Implement database activity monitoring to detect unusual query patterns or unauthorized data access
• Review audit logs for suspicious administrator activity in the Create Monitor functionality
• Deploy web application firewall (WAF) rules to detect common SQL injection patterns in HTTP requests

Monitoring Recommendations

• Enable verbose logging for the ManageEngine Applications Manager application and associated database
• Configure alerts for multiple failed or anomalous monitor creation attempts
• Implement real-time monitoring of administrator account activities and privilege usage
• Establish baseline behavior for database queries and alert on deviations

How to Mitigate CVE-2024-5678

Immediate Actions Required

• Update ManageEngine Applications Manager to a version above 170900 that contains the security fix
• Review administrator account access and ensure principle of least privilege is enforced
• Audit recent administrator activities in the Create Monitor feature for signs of exploitation
• Implement additional access controls and multi-factor authentication for admin accounts

Patch Information

Zohocorp has released a security update to address this vulnerability. Organizations should upgrade ManageEngine Applications Manager to the latest available version that remediates CVE-2024-5678. Detailed patch information and upgrade instructions are available in the ManageEngine Security Update for CVE-2024-5678.

Workarounds

• Restrict administrative access to ManageEngine Applications Manager to only essential personnel
• Implement network segmentation to limit access to the application management interface
• Deploy a web application firewall (WAF) with SQL injection detection rules as an interim protective measure
• Monitor and audit all administrator actions within the application until patching is complete

# Configuration example - Restrict admin interface access via firewall rules
# Allow only trusted management networks to access the admin interface
iptables -A INPUT -p tcp --dport 9090 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 9090 -j DROP