CVE-2021-39280 : What You Need to Know

This CVE-2021-39280 article provides details about a vulnerability in Korenix JetWave devices that allows authenticated users to execute arbitrary code as root via /syscmd.asp.

Understanding CVE-2021-39280

This section delves into the specifics of the CVE-2021-39280 vulnerability.

What is CVE-2021-39280?

The vulnerability allows authenticated users to run arbitrary code as root through /syscmd.asp on certain Korenix JetWave devices.

The Impact of CVE-2021-39280

Attackers can exploit this vulnerability to execute malicious commands on affected devices, potentially leading to unauthorized access and control.

Technical Details of CVE-2021-39280

This section covers the technical aspects of the CVE-2021-39280 vulnerability.

Vulnerability Description

Affected devices include 2212X before 1.9.1, 2212S before 1.9.1, 2212G before 1.8, 3220 V3 before 1.5.1, 3420 V3 before 1.5.1, and 2311 through 2022-01-31.

Affected Systems and Versions

Korenix JetWave devices, specifically the mentioned models and versions, are susceptible to this vulnerability.

Exploitation Mechanism

The vulnerability is exploited by authenticated users leveraging /syscmd.asp to execute unauthorized code with root privileges.

Mitigation and Prevention

Explore the measures to mitigate and prevent the CVE-2021-39280 vulnerability.

Immediate Steps to Take

Update the firmware on affected devices to versions that address the vulnerability.
Restrict access to the /syscmd.asp endpoint and implement proper authentication mechanisms.

Long-Term Security Practices

Regularly monitor and audit device access and activities to detect potential unauthorized actions.
Educate users on secure practices and the risks associated with running unauthorized code.

Patching and Updates

Stay informed about security patches and updates from Korenix to promptly address any new vulnerabilities.