CVE-2021-26637 : Vulnerability Insights and Analysis

SiHAS firmware and old app by Shina System Co.,Ltd are affected by an improper authentication vulnerability that allows unauthorized remote control due to the lack of account authentication and permission logic.

Understanding CVE-2021-26637

This CVE discloses an issue where unauthorized users can exploit the lack of authentication and permission checks in SiHAS products to control the device remotely.

What is CVE-2021-26637?

The vulnerability in SiHAS firmware and old app permits attackers to manipulate the device without proper authentication, posing a significant risk to confidentiality, integrity, and availability.

The Impact of CVE-2021-26637

The impact of this vulnerability is rated high, with a CVSS base score of 8.8. Attackers can exploit this issue to gain unauthorized remote control over affected devices, compromising critical data.

Technical Details of CVE-2021-26637

This section dives into the specific technical aspects of the SiHAS improper authentication vulnerability.

Vulnerability Description

The issue arises from the absence of account authentication and permission logic in SiHAS SGW-300, ACM-300, GCM-300 firmware and apps, enabling remote manipulation by unauthorized users.

Affected Systems and Versions

SiHAS firmware version 1.xx and the old app are impacted by this vulnerability on Android and iOS platforms.

Exploitation Mechanism

Attackers can exploit the lack of authentication and permission checks in SiHAS products to gain unauthorized remote access, potentially leading to severe consequences.

Mitigation and Prevention

Protecting your systems from CVE-2021-26637 requires immediate action and long-term security practices.

Immediate Steps to Take

Ensure to restrict remote access, implement proper authentication controls, and monitor for any suspicious activities on SiHAS devices.

Long-Term Security Practices

Regularly update the firmware and apps to the latest secure versions, conduct security audits, and educate users on best security practices.

Patching and Updates

Stay informed about security advisories from Shina System Co.,Ltd, and promptly apply patches to address the improper authentication vulnerability in SiHAS products.