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CVE-2021-21932 : Vulnerability Insights and Analysis

Learn about CVE-2021-21932, a high-severity SQL injection vulnerability in Advantech R-SeeNet 2.4.15. Understand the impact, affected systems, exploitation, and mitigation steps.

This article provides detailed information about CVE-2021-21932, a vulnerability that allows SQL injection via a specially-crafted HTTP request in Advantech R-SeeNet 2.4.15.

Understanding CVE-2021-21932

CVE-2021-21932 is a high-severity vulnerability that enables attackers to execute SQL injection by sending malicious HTTP requests to the 'name_filter' parameter in Advantech R-SeeNet 2.4.15.

What is CVE-2021-21932?

CVE-2021-21932 is a SQL injection vulnerability in Advantech R-SeeNet 2.4.15, allowing attackers to manipulate SQL queries by exploiting the 'name_filter' parameter through crafted HTTP requests.

The Impact of CVE-2021-21932

The impact of CVE-2021-21932 is rated as high severity, with a CVSS base score of 7.7. Attackers can gain unauthorized access to sensitive data due to improper input validation, posing a significant risk to affected systems.

Technical Details of CVE-2021-21932

CVE-2021-21932 manifests through a specially-crafted HTTP request that triggers SQL injection through the 'name_filter' parameter in Advantech R-SeeNet 2.4.15.

Vulnerability Description

The vulnerability arises from improper neutralization of SQL commands in user inputs, enabling attackers to modify SQL queries and potentially extract or manipulate sensitive data.

Affected Systems and Versions

Advantech R-SeeNet version 2.4.15 (30.07.2021) is affected by CVE-2021-21932, exposing systems with this version to the risk of SQL injection attacks.

Exploitation Mechanism

Attackers can exploit CVE-2021-21932 by crafting HTTP requests with malicious SQL payloads targeting the 'name_filter' parameter, leading to the execution of unauthorized SQL commands.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-21932, immediate actions and long-term security practices are crucial.

Immediate Steps to Take

        Apply the latest security patches and updates provided by Advantech to address the vulnerability.
        Implement strict input validation mechanisms to sanitize user inputs and prevent SQL injection attacks.

Long-Term Security Practices

        Regularly monitor and audit web application logs for unusual activities that may indicate SQL injection attempts.
        Conduct security training for developers to raise awareness about secure coding practices and the risks of SQL injection vulnerabilities.

Patching and Updates

Ensure timely installation of security patches and updates released by Advantech to mitigate the SQL injection risk in Advantech R-SeeNet 2.4.15.

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