CVE-2020-10826 Explained : Impact and Mitigation

A vulnerability in /cgi-bin/activate.cgi on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 allows remote attackers to achieve command injection via a remote HTTP request in DEBUG mode.

Understanding CVE-2020-10826

This CVE identifies a security issue in specific Draytek devices that could be exploited by remote attackers.

What is CVE-2020-10826?

The vulnerability in /cgi-bin/activate.cgi on Draytek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1 enables remote attackers to execute commands through a remote HTTP request in DEBUG mode.

The Impact of CVE-2020-10826

This vulnerability could lead to unauthorized command execution by malicious actors, potentially compromising the affected devices and the network they are connected to.

Technical Details of CVE-2020-10826

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

The flaw in /cgi-bin/activate.cgi on the mentioned Draytek devices allows for command injection through a remote HTTP request in DEBUG mode.

Affected Systems and Versions

Draytek Vigor3900, Vigor2960, and Vigor300B devices before version 1.5.1 are impacted.

Exploitation Mechanism

The vulnerability can be exploited by sending a crafted HTTP request to the affected devices while they are in DEBUG mode, enabling the injection of malicious commands.

Mitigation and Prevention

Protecting systems from CVE-2020-10826 requires immediate action and long-term security measures.

Immediate Steps to Take

Disable DEBUG mode on the affected Draytek devices to prevent exploitation of this vulnerability.
Apply security patches or updates provided by the vendor to address the issue.

Long-Term Security Practices

Regularly monitor for security advisories and updates from Draytek to stay informed about potential vulnerabilities.
Implement network segmentation and access controls to limit the impact of security breaches.

Patching and Updates

Ensure that the Draytek devices are updated to version 1.5.1 or later to mitigate the vulnerability.