CVE-2021-38428 : Security Advisory and Response

Delta Electronics DIALink versions 1.2.4.0 and prior are vulnerable to cross-site scripting. An authenticated attacker can inject arbitrary JavaScript code into the parameter name of the API schedule, potentially allowing remote code execution.

Understanding CVE-2021-38428

This CVE involves a cross-site scripting vulnerability in Delta Electronics DIALink versions 1.2.4.0 and earlier.

What is CVE-2021-38428?

Delta Electronics DIALink is susceptible to cross-site scripting, where an authenticated attacker can insert malicious JavaScript code into the API schedule parameter name, posing a risk of code execution.

The Impact of CVE-2021-38428

The impact of this vulnerability is assessed as medium severity with a CVSS base score of 5.5. Although the attack complexity is considered low, an attacker with high privileges can exploit this flaw to compromise the confidentiality and integrity of the system.

Technical Details of CVE-2021-38428

This section delves into the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from the ability of an authenticated attacker to inject arbitrary JavaScript code into the API schedule parameter name, leading to potential remote code execution.

Affected Systems and Versions

Delta Electronics DIALink versions up to 1.2.4.0 are impacted by this vulnerability.

Exploitation Mechanism

The exploitation involves injecting malicious JavaScript code into the API schedule parameter's name, enabling an attacker to execute remote code.

Mitigation and Prevention

Protective measures and strategies to mitigate the risks associated with CVE-2021-38428.

Immediate Steps to Take

Delta Electronics is aware of the vulnerabilities and is actively working on a patch to address this issue. Users are advised to apply the security updates as soon as they are made available.

Long-Term Security Practices

To enhance overall security posture, organizations are encouraged to implement secure coding practices, conduct regular security assessments, and stay informed about potential vulnerabilities.

Patching and Updates

Stay informed about the release of security patches and updates from Delta Electronics, and ensure timely application to safeguard systems against this known vulnerability.