CVE-2021-45917 : Vulnerability Insights and Analysis

CVE-2021-45917, titled 'SUN & MOON RISE CO., LTD. Shockwall - Improper Authentication,' is a vulnerability affecting Shockwall container software developed by SUN & MOON RISE CO., LTD.

Understanding CVE-2021-45917

This section provides an in-depth look into the nature and impact of the CVE.

What is CVE-2021-45917?

The CVE-2021-45917 vulnerability involves the server-request receiver function of Shockwall systems, leading to an improper authentication flaw. An authenticated attacker within the local network can exploit this vulnerability to conduct a server-side request forgery (SSRF) attack on another agent computer, potentially resulting in arbitrary code execution and system control disruption.

The Impact of CVE-2021-45917

The impact of CVE-2021-45917 is significant with a CVSSv3.1 base score of 8 (High). The vulnerability has the following impacts:

Attack Complexity: Low
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: Low
Scope: Unchanged
User Interaction: None

Technical Details of CVE-2021-45917

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability lies in the improper authentication mechanism of the Shockwall system, enabling unauthorized SSRF attacks.

Affected Systems and Versions

Affected Product: Shockwall
Vendor: SUN & MOON RISE CO., LTD.
Affected Version: < 7.20.0401 (Custom Version)

Exploitation Mechanism

The vulnerability can be exploited by an authenticated attacker leveraging local registry information to initiate SSRF attacks.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2021-45917:

Immediate Steps to Take

Utilize network segmentation to restrict unauthorized access
Regularly monitor and review network traffic for suspicious activities
Apply the vendor-recommended security patches and updates promptly

Long-Term Security Practices

Conduct regular security training for network administrators to enhance awareness
Implement strict access control policies and authentication mechanisms

Patching and Updates

Contact SUN & MOON RISE CO., LTD. tech support for patches and updates