CVE-2021-30072 : Vulnerability Insights and Analysis

An issue was discovered in prog.cgi on D-Link DIR-878 1.30B08 devices, leading to a stack-based buffer overflow due to the misuse of strcat without requiring authentication.

Understanding CVE-2021-30072

This CVE identifies a vulnerability in a specific D-Link device that could be exploited by an attacker to trigger a buffer overflow.

What is CVE-2021-30072?

The vulnerability in prog.cgi on D-Link DIR-878 1.30B08 devices allows an attacker to execute arbitrary code by exploiting a stack-based buffer overflow.

The Impact of CVE-2021-30072

The exploitation of this vulnerability could lead to unauthorized remote code execution on the affected devices without the need for authentication, posing a significant security risk.

Technical Details of CVE-2021-30072

This section covers detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability is caused by the improper use of the strcat function in prog.cgi, enabling a stack-based buffer overflow that could be leveraged by threat actors.

Affected Systems and Versions

D-Link DIR-878 1.30B08 devices are confirmed to be impacted by this vulnerability, indicating a specific target for potential exploitation.

Exploitation Mechanism

By sending crafted requests to the vulnerable prog.cgi, attackers can exploit the buffer overflow to execute malicious code on the target device.

Mitigation and Prevention

Discover the necessary steps to mitigate the risks associated with CVE-2021-30072.

Immediate Steps to Take

Users are advised to apply patches provided by D-Link to address the vulnerability and prevent exploitation by malicious actors.

Long-Term Security Practices

Incorporating robust security protocols and regularly updating devices can enhance overall cybersecurity posture and prevent similar vulnerabilities.

Patching and Updates

Regularly check for security updates and apply patches promptly to safeguard devices against known vulnerabilities.