CVE-2021-25328 : Security Advisory and Response

Skyworth Digital Technology RN510 V.3.1.0.4 RN510 V.3.1.0.4 contains a buffer overflow vulnerability in /cgi-bin/app-staticIP.asp. An authenticated attacker can send a specially crafted request to endpoint which can lead to a denial of service (DoS) or possible code execution on the device.

Understanding CVE-2021-25328

This CVE details a buffer overflow vulnerability in Skyworth Digital Technology RN510 V.3.1.0.4 that can be exploited by an authenticated attacker to cause a denial of service or potential code execution.

What is CVE-2021-25328?

CVE-2021-25328 is a buffer overflow vulnerability found in Skyworth Digital Technology RN510 V.3.1.0.4. It allows an authenticated attacker to send a specially crafted request to a specific endpoint, potentially resulting in a DoS condition or even executing malicious code on the affected device.

The Impact of CVE-2021-25328

The impact of this vulnerability is severe as it can be exploited by a malicious actor with authentication to disrupt services or gain unauthorized access to the device for further compromise.

Technical Details of CVE-2021-25328

This section covers specific technical details of the vulnerability.

Vulnerability Description

The buffer overflow vulnerability exists in /cgi-bin/app-staticIP.asp in Skyworth Digital Technology RN510 V.3.1.0.4, and an attacker can exploit it by sending a crafted request to the endpoint.

Affected Systems and Versions

Skyworth Digital Technology RN510 V.3.1.0.4 is affected by this vulnerability.

Exploitation Mechanism

An authenticated attacker can send a specially crafted request to the vulnerable endpoint, triggering the buffer overflow and potentially leading to a denial of service or code execution.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-25328, immediate steps and long-term security practices are crucial.

Immediate Steps to Take

Organizations should restrict access to the vulnerable endpoint, apply security patches promptly, and monitor for any unusual activities on the affected device.

Long-Term Security Practices

Implementing network segmentation, regularly updating firmware, conducting security assessments, and providing cybersecurity awareness training to employees can enhance long-term security posture.

Patching and Updates

Vendor-supplied patches should be applied as soon as they are released to address the buffer overflow vulnerability in Skyworth Digital Technology RN510 V.3.1.0.4.