CVE-2024-4192 in CNCSoft-G2 DOPSoft
Summary
by MITRE • 05/01/2024
Delta Electronics CNCSoft-G2 lacks proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
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Analysis
by VulDB Data Team • 07/10/2025
This vulnerability resides in Delta Electronics CNCSoft-G2 software where insufficient input validation creates a classic buffer overflow condition. The flaw occurs when user-supplied data is copied to a fixed-length stack-based buffer without proper length verification, allowing attackers to exceed the buffer boundaries and overwrite adjacent memory locations. Such improper input handling represents a fundamental security weakness that violates multiple security principles and standards including cwe-121 which specifically addresses stack-based buffer overflow conditions. The vulnerability exists within the software's data processing pipeline where external inputs are accepted without adequate sanitization or size constraints, creating an exploitable entry point for malicious actors.
The technical exploitation of this vulnerability enables remote code execution within the context of the current process, meaning an attacker could potentially gain full control over the application's execution environment. When an attacker supplies malicious input exceeding the predetermined buffer size, the excess data overflows into adjacent memory regions, potentially corrupting the stack frame, return addresses, or other critical program state information. This memory corruption can be leveraged to redirect program execution flow, inject malicious code, or manipulate program behavior in ways that compromise system integrity and confidentiality. The attack vector is particularly concerning because it operates at the application level where the software processes user inputs, making it accessible through normal operational channels without requiring elevated privileges or specialized attack infrastructure.
The operational impact of this vulnerability extends beyond immediate code execution capabilities to encompass broader system compromise and data integrity threats. An attacker who successfully exploits this vulnerability could potentially access sensitive operational data, manipulate CNC machining parameters, or gain unauthorized control over industrial processes that rely on CNCSoft-G2 for operation. This represents a significant risk in industrial control systems where such vulnerabilities could lead to production disruptions, safety hazards, or unauthorized access to critical manufacturing processes. The vulnerability's presence in industrial software also raises concerns about supply chain security and the potential for cascading effects across interconnected systems that depend on CNC operations.
Mitigation strategies should prioritize immediate remediation through code-level fixes that implement proper input validation and bounds checking mechanisms. Developers must ensure that all user-supplied data undergoes rigorous length validation before being copied to fixed-size buffers, implementing defensive programming practices that align with secure coding standards. The solution involves incorporating input sanitization routines, using safer string handling functions, and implementing proper buffer management techniques that prevent overflow conditions. Organizations should also deploy runtime protections such as stack canaries, address space layout randomization, and data execution prevention mechanisms to reduce exploitability. Additionally, regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in legacy industrial software systems, with particular attention to the ATT&CK framework's techniques for code injection and privilege escalation that could leverage such buffer overflow conditions.