CVE-2024-12858

Remediation/Mitigation Strategy for CVE-2024-12858: Heap-Based Buffer Overflow in Delta Electronics CNCSoft-G2

This document outlines the remediation and mitigation strategies for CVE-2024-12858, a critical vulnerability found in Delta Electronics CNCSoft-G2.

1. Vulnerability Description

  • Vulnerability: Heap-Based Buffer Overflow
  • Affected Product: Delta Electronics CNCSoft-G2 Version 2.1.0.16 and prior
  • Description: CNCSoft-G2 lacks proper validation of the length of user-supplied data before copying it to a fixed-length heap-based buffer. This allows for an overflow if the input data exceeds the buffer’s capacity.
  • Attack Vector: An attacker could potentially execute arbitrary code in the context of the current process by enticing a target user to visit a malicious web page or open a malicious file specifically crafted to exploit this buffer overflow.

2. Severity

  • CVSS Score: 8.4 (HIGH)
    • CVSS v3.1 Vector: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Severity Level: HIGH
  • Impact:
    • Confidentiality: Complete information disclosure.
    • Integrity: Complete system modification.
    • Availability: Complete denial of service.
  • Reasoning: The potential for remote code execution with the privileges of the CNCSoft-G2 process makes this a critical vulnerability. A successful exploit could allow an attacker to gain complete control over the affected system.

3. Known Exploits

  • Exploitability: High. While no specific exploit code is detailed in the provided information, the nature of heap-based buffer overflows means that proof-of-concept exploits and eventually, publicly available exploits are likely to be developed.
  • Likelihood of Exploitation: Elevated, given the criticality of the affected system (CNC software) and the relative ease with which heap-based buffer overflows can sometimes be exploited.

4. Remediation Strategy

The primary remediation strategy is to update CNCSoft-G2 to a patched version provided by Delta Electronics. This patch should address the vulnerability by implementing proper input validation and preventing buffer overflows.

  • Action: Immediately contact Delta Electronics support to inquire about the availability of a patched version of CNCSoft-G2. Request an emergency patch if one is not yet publicly available.
  • Implementation: Follow Delta Electronics’ recommended upgrade procedures to install the patched version. Thoroughly test the updated software in a non-production environment before deploying it to the production environment.
  • Verification: After the update, verify that the vulnerability is no longer exploitable using penetration testing or by re-attempting known exploit methods (if available).

5. Mitigation Strategy (Until Patch is Available)

If a patch is not immediately available, the following mitigation strategies should be implemented to reduce the risk of exploitation:

  • Network Segmentation: Isolate the CNCSoft-G2 system on a separate network segment to limit the potential impact of a successful attack. Implement strict firewall rules to restrict network access to and from the system, allowing only necessary communication.
  • Access Control: Restrict access to the CNCSoft-G2 system to only authorized personnel. Implement strong password policies and multi-factor authentication (MFA) where possible.
  • User Awareness Training: Educate users about the risks of opening suspicious files or visiting untrusted websites. Emphasize the importance of verifying the source and integrity of all files before opening them.
  • Web Filtering/Proxy: Implement a web filtering or proxy solution to block access to known malicious websites. Monitor web traffic for suspicious activity.
  • Intrusion Detection/Prevention System (IDS/IPS): Deploy an IDS/IPS to monitor network traffic for exploit attempts targeting CVE-2024-12858. Configure the IDS/IPS to block or alert on suspicious activity. Consider enabling “virtual patching” capabilities, if available, on your IDS/IPS solution.
  • Honeypots: Deploy honeypots on the network to detect and analyze potential attacks.
  • Monitor System Logs: Continuously monitor system logs for suspicious activity, such as unexpected process crashes or unusual network connections.
  • Disable Unnecessary Features: If possible, disable any unnecessary features or functionality in CNCSoft-G2 to reduce the attack surface.
  • Consider Alternative Software (Temporary): If possible, and depending on operational needs, consider temporarily using alternative CNC software until a patch for CNCSoft-G2 is available.

6. Communication

  • Internal Communication: Communicate the vulnerability and the implemented mitigation strategies to all relevant stakeholders, including IT staff, security personnel, and end-users.
  • External Communication: Maintain contact with Delta Electronics support to stay informed about the availability of a patch and any other relevant updates. Report any suspected exploit attempts to Delta Electronics and ICS-CERT.

7. Ongoing Monitoring

Continuously monitor the effectiveness of the implemented mitigation strategies and adjust them as needed. Stay informed about new developments related to CVE-2024-12858 and adapt the remediation and mitigation plans accordingly.

Assigner

Date

  • Published Date: 2025-03-13 17:15:26
  • Updated Date: 2025-03-13 17:15:26

More Details

CVE-2024-12858