CVE-2021-37913 : Security Advisory and Response

A critical vulnerability, CVE-2021-37913, has been identified in HGiga OAKlouds that could allow remote attackers to execute arbitrary commands without logging in.

Understanding CVE-2021-37913

This CVE, published on September 15, 2021, exposes a command injection flaw in the HGiga OAKlouds mobile portal, enabling attackers to exploit the IPv6 Gateway parameter.

What is CVE-2021-37913?

The vulnerability in the network interface card setting page of OAKlouds OAKSv2 and OAKSv3 allows remote attackers to conduct command injection attacks, giving them unauthorized access to the system.

The Impact of CVE-2021-37913

With a CVSS base score of 9.8, this critical vulnerability has a high impact on confidentiality, integrity, and availability. Attackers can execute arbitrary commands with no user interaction required.

Technical Details of CVE-2021-37913

The vulnerability stems from a lack of input filtering in the IPv6 Gateway parameter, enabling attackers to inject and execute malicious commands.

Vulnerability Description

The vulnerability arises from the inability of the mobile portal to filter special characters, leading to command injection via the network interface card setting page.

Affected Systems and Versions

HGiga's OAKlouds OAKSv2 version OAKlouds-network 2.0-2 and OAKlouds OAKSv3 version OAKlouds-network 3.0-2 are impacted by this vulnerability.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by injecting arbitrary commands through the IPv6 Gateway parameter.

Mitigation and Prevention

To address CVE-2021-37913, organizations using OAKlouds OAKSv2 and OAKSv3 must update to the patched versions.

Immediate Steps to Take

Update OAKlouds OAKSv2 to version OAKlouds-network-2.0-3 and OAKlouds OAKSv3 to version OAKlouds-network-3.0-3 immediately after their release.

Long-Term Security Practices

Implement robust input validation mechanisms and monitor network traffic for any suspicious behavior to prevent future command injection attacks.

Patching and Updates

Regularly apply security patches and updates provided by HGiga to mitigate the risk of similar vulnerabilities in the future.