CVE-2024-6376: MongoDB Compass RCE Vulnerability

CVE-2024-6376 Overview

MongoDB Compass, the graphical user interface for MongoDB, is susceptible to code injection due to insufficient sandbox protection settings with the usage of the ejson shell parser in Compass' connection handling. This vulnerability allows attackers to potentially execute arbitrary code through the connection handling mechanism, which could lead to complete system compromise.

Critical Impact

Attackers can exploit insufficient sandbox protection in the ejson shell parser to inject and execute malicious code, potentially gaining full control over systems running vulnerable MongoDB Compass versions.

Affected Products

• MongoDB Compass versions prior to 1.42.2

Discovery Timeline

• 2024-07-01 - CVE-2024-6376 published to NVD
• 2024-11-21 - Last updated in NVD database

Technical Details for CVE-2024-6376

Vulnerability Analysis

This vulnerability stems from improper input validation (CWE-20) and code injection flaws (CWE-94) within MongoDB Compass's connection handling component. The ejson shell parser, used to process extended JSON data during database connection operations, lacks adequate sandbox protection mechanisms. This deficiency allows untrusted input to escape the intended execution context and execute arbitrary code within the Compass application environment.

The network-accessible nature of this vulnerability means attackers can potentially exploit it remotely without requiring authentication or user interaction. Successful exploitation could result in complete compromise of confidentiality, integrity, and availability of the affected system.

Root Cause

The root cause of CVE-2024-6376 lies in insufficient sandbox protection settings implemented around the ejson shell parser component. When MongoDB Compass processes connection strings or extended JSON data, the parser fails to properly isolate and sanitize input, allowing specially crafted payloads to break out of the intended parsing context. This represents a fundamental failure in input validation and code-data separation principles.

Attack Vector

The attack vector is network-based, targeting the connection handling functionality of MongoDB Compass. An attacker can craft malicious connection strings or ejson data that, when processed by the vulnerable parser, results in code injection. The vulnerability does not require authentication or user interaction to exploit.

The attack could be delivered through several vectors including malicious connection URIs, compromised configuration files, or through man-in-the-middle scenarios where connection data is intercepted and modified.

Detection Methods for CVE-2024-6376

Indicators of Compromise

• Unusual process spawning from MongoDB Compass application
• Unexpected network connections originating from the Compass process
• Anomalous file system activity in the Compass application directory
• Suspicious connection strings or ejson payloads in application logs

Detection Strategies

• Monitor for unusual child processes spawned by MongoDB Compass
• Implement application allowlisting to detect unauthorized code execution
• Review Compass connection logs for malformed or suspicious connection strings
• Deploy endpoint detection and response (EDR) solutions to identify code injection attempts

Monitoring Recommendations

• Enable verbose logging for MongoDB Compass connection operations
• Monitor system calls and process behavior for the Compass application
• Implement network traffic analysis to detect anomalous database connection patterns
• Set up alerts for unauthorized modifications to Compass configuration files

How to Mitigate CVE-2024-6376

Immediate Actions Required

• Upgrade MongoDB Compass to version 1.42.2 or later immediately
• Restrict network access to systems running vulnerable Compass versions
• Audit existing connection configurations for potentially malicious content
• Implement network segmentation to isolate database management tools

Patch Information

MongoDB has addressed this vulnerability in MongoDB Compass version 1.42.2. Organizations should prioritize upgrading to this version or later to remediate the code injection vulnerability. For detailed information about the fix, refer to the MongoDB Jira Issue COMPASS-7496.

Workarounds

• Limit MongoDB Compass usage to trusted network environments only
• Avoid using connection strings from untrusted sources until patched
• Run MongoDB Compass with minimal system privileges
• Consider using alternative MongoDB management tools until upgrade can be completed

# Verify MongoDB Compass version
# Ensure version is 1.42.2 or higher
mongodb-compass --version

# On Linux/macOS, check installed version
which mongodb-compass && mongodb-compass --version

# For containerized deployments, update to patched image
# docker pull mongodb/compass:1.42.2