CVE-2024-2413: Intumit Smartrobot RCE Vulnerability

CVE-2024-2413 Overview

CVE-2024-2413 is a critical hardcoded credentials vulnerability affecting Intumit SmartRobot, an enterprise chatbot and AI assistant platform. The vulnerability stems from the use of a fixed encryption key for authentication, allowing remote attackers to forge authentication codes and gain administrator privileges on the system.

Remote attackers can exploit this vulnerability by using the hardcoded encryption key to encrypt a string composed of the user's name and timestamp, generating a valid authentication code. With this forged authentication code, attackers can obtain administrator privileges and subsequently execute arbitrary code on the remote server using built-in system functionality.

Critical Impact

Remote attackers can bypass authentication, gain administrator privileges, and execute arbitrary code on affected Intumit SmartRobot servers without requiring prior authentication.

Affected Products

• Intumit SmartRobot (all versions)
• Enterprise deployments utilizing SmartRobot chatbot functionality
• Systems exposing SmartRobot authentication endpoints to network access

Discovery Timeline

• 2024-03-13 - CVE-2024-2413 published to NVD
• 2026-03-17 - Last updated in NVD database

Technical Details for CVE-2024-2413

Vulnerability Analysis

This vulnerability is classified under CWE-321 (Use of Hard-coded Cryptographic Key), representing a fundamental cryptographic implementation flaw. The Intumit SmartRobot platform implements authentication using a static encryption key that is embedded within the application code or configuration.

The authentication mechanism accepts encrypted tokens that combine a username with a timestamp value. Because the encryption key is fixed and predictable, any attacker who discovers or reverse-engineers this key can generate valid authentication tokens for any user account, including administrator accounts.

The network-accessible nature of this vulnerability means attackers can exploit it remotely without any prior authentication or user interaction. Once administrator access is obtained, the platform's built-in system functionality provides mechanisms for arbitrary code execution on the underlying server.

Root Cause

The root cause of CVE-2024-2413 is the use of a hardcoded cryptographic key within the SmartRobot authentication system. Rather than implementing proper key management practices—such as unique per-installation keys, key rotation, or hardware-based key storage—the application relies on a static key that remains constant across all deployments.

This design flaw violates fundamental cryptographic principles that require encryption keys to be kept secret and unique. When the same key is used across all installations, discovering the key from a single instance compromises the security of all deployed systems.

Attack Vector

The attack leverages the network-accessible authentication endpoint of SmartRobot. An attacker follows this exploitation path:

1. Key Discovery: The attacker obtains the fixed encryption key through reverse engineering the application, analyzing network traffic, or accessing leaked source code
2. Token Generation: Using the discovered key, the attacker encrypts a payload containing an administrator username and a valid timestamp
3. Authentication Bypass: The forged token is submitted to the authentication endpoint, which validates it successfully due to the matching encryption key
4. Privilege Escalation: The attacker gains administrator-level access to the SmartRobot platform
5. Code Execution: Using built-in administrative functionality, the attacker executes arbitrary code on the underlying server

The attack requires no user interaction and can be performed by any remote attacker with network access to the SmartRobot instance. For detailed technical information, refer to the TWCCERT Security Advisory.

Detection Methods for CVE-2024-2413

Indicators of Compromise

• Unusual authentication events for administrator accounts, particularly from unexpected IP addresses or geographic locations
• Authentication tokens containing timestamps that do not correlate with legitimate user login attempts
• Rapid succession of administrative actions following authentication from previously unseen sources
• Execution of system commands or scripts through SmartRobot administrative interfaces
• Log entries showing administrator-level API calls from unauthenticated or suspicious sessions

Detection Strategies

• Monitor SmartRobot authentication logs for anomalous login patterns, including successful administrator logins from unexpected network segments
• Implement network-level monitoring to detect authentication requests containing potentially forged tokens
• Deploy behavioral analysis to identify administrative actions that deviate from established baselines
• Configure alerting for any code execution or system command activity initiated through the SmartRobot platform

Monitoring Recommendations

• Enable comprehensive audit logging for all SmartRobot authentication and administrative actions
• Integrate SmartRobot logs with SIEM solutions for centralized analysis and correlation
• Establish baseline metrics for administrator authentication frequency and source IP patterns
• Monitor outbound network connections from SmartRobot servers that may indicate post-exploitation activity

How to Mitigate CVE-2024-2413

Immediate Actions Required

• Restrict network access to SmartRobot administrative interfaces using firewall rules and network segmentation
• Implement additional authentication layers such as VPN requirements or IP allowlisting for administrative access
• Review SmartRobot access logs for signs of unauthorized administrator access or suspicious authentication patterns
• Contact Intumit for guidance on patching or upgrading to a version with proper key management

Patch Information

Organizations should consult the TWCCERT Security Advisory for the latest information on available patches and vendor-recommended remediation steps. Contact Intumit directly for security updates that address the hardcoded encryption key vulnerability.

Workarounds

• Place SmartRobot instances behind a reverse proxy with additional authentication requirements
• Implement network segmentation to prevent direct external access to SmartRobot servers
• Deploy web application firewall (WAF) rules to inspect and filter authentication traffic to SmartRobot endpoints
• Monitor and restrict outbound network connectivity from SmartRobot servers to limit post-exploitation capabilities
• Consider temporarily disabling external access to SmartRobot until a proper patch is applied

# Example: Restrict access to SmartRobot using iptables
# Allow only trusted internal networks to access SmartRobot ports
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP