CVE-2021-42333 : Security Advisory and Response

Easytest by Huachu Digital Technology Co.,Ltd. is vulnerable to SQL injection, allowing remote attackers to access databases and gain admin privileges.

Understanding CVE-2021-42333

Easytest software contains a critical SQL injection vulnerability, leading to high severity impacts on confidentiality, integrity, and availability.

What is CVE-2021-42333?

The Easytest application is prone to SQL injection attacks, enabling malicious actors to execute arbitrary SQL commands through specific parameters, compromising sensitive data.

The Impact of CVE-2021-42333

The vulnerability allows attackers to escalate privileges, access sensitive information, and potentially take control of the Easytest application and associated databases.

Technical Details of CVE-2021-42333

The vulnerability is detailed with the following technical aspects:

Vulnerability Description

Attack Complexity: Low
Attack Vector: Network
Availability Impact: High
Base Score: 8.8
Base Severity: High
Confidentiality Impact: High
Integrity Impact: High
Privileges Required: Low
User Interaction: None
Vector String: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems and Versions

The Easytest version 1705 is affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability remotely by injecting SQL commands into the learning history page's parameters, gaining unauthorized access to the database.

Mitigation and Prevention

To address CVE-2021-42333, the following steps are recommended:

Immediate Steps to Take

Update Easytest to version 2100 to mitigate the vulnerability.

Long-Term Security Practices

Regularly monitor for security updates and patches.
Implement secure coding practices to prevent SQL injection vulnerabilities.

Patching and Updates

Apply security patches provided by Huachu Digital Technology Co.,Ltd.