CVE-2021-43982 : Vulnerability Insights and Analysis

Delta Electronics CNCSoft Versions 1.01.30 and prior are vulnerable to a stack-based buffer overflow, potentially allowing an attacker to execute arbitrary code.

Understanding CVE-2021-43982

Delta Electronics CNCSoft software versions prior to 1.01.30 are susceptible to a stack-based buffer overflow vulnerability that could be exploited by attackers.

What is CVE-2021-43982?

This CVE refers to a vulnerability in Delta Electronics CNCSoft where an attacker could exploit a stack-based buffer overflow to run arbitrary code.

The Impact of CVE-2021-43982

CVSS Score: 7.8 (High Severity)
Attack Vector: Local
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: None
This vulnerability's base score indicates a high severity level with significant security implications.

Technical Details of CVE-2021-43982

Delta Electronics CNCSoft Version 1.01.30 vulnerability specifics and affected systems.

Vulnerability Description

The identified vulnerability stems from a stack-based buffer overflow in Delta Electronics CNCSoft, allowing unauthorized code execution.

Affected Systems and Versions

Affected Version: 1.01.30 and prior
Product: CNCSoft
Vendor: Delta Electronics
All versions of CNCSoft up to and including 1.01.30 are impacted.

Exploitation Mechanism

The vulnerability opens the door for attackers to execute arbitrary code due to the stack-based buffer overflow in older CNCSoft versions.

Mitigation and Prevention

Measures to address and prevent exploitation of the CVE-2021-43982 vulnerability.

Immediate Steps to Take

Update to version 1.01.31 or later to safeguard systems.
Restrict network exposure and avoid internet accessibility for control system devices.
Segment control system networks and devices behind firewalls for isolation.
Implement secure remote access methods like VPNs.

Long-Term Security Practices

Regular security assessments and updates for all software components.
Conduct employee training on cybersecurity best practices.
Implement network segmentation and access control mechanisms.

Patching and Updates

Delta Electronics issued version 1.01.31 as a patch; ensure all affected systems are updated to this version promptly.