CVE-2021-21931 Explained : Impact and Mitigation
Learn about CVE-2021-21931, a high-severity SQL injection vulnerability in Advantech R-SeeNet 2.4.15. Explore its impact, affected systems, exploitation risks, and mitigation strategies.
A high-severity CVE-2021-21931 identified in Advantech R-SeeNet 2.4.15 raises concerns due to a SQL injection vulnerability that can be triggered by a specially-crafted HTTP request. Read on to understand the impact, technical details, and mitigation strategies associated with this CVE.
Understanding CVE-2021-21931
This section delves into the specifics of the CVE-2021-21931 vulnerability affecting Advantech R-SeeNet 2.4.15.
What is CVE-2021-21931?
CVE-2021-21931 allows for SQL injection via a malicious HTTP request targeting the 'stat_filter' parameter, potentially exploited by authenticated users or through cross-site request forgery.
The Impact of CVE-2021-21931
With a CVSS base score of 7.7 (High Severity), this vulnerability poses a significant risk to confidentiality, potentially leading to unauthorized data access.
Technical Details of CVE-2021-21931
This section outlines the vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
A specially-crafted HTTP request can result in SQL injection, enabling attackers to manipulate database queries through the 'stat_filter' parameter.
Affected Systems and Versions
Advantech R-SeeNet 2.4.15 (30.07.2021) is confirmed to be impacted by CVE-2021-21931.
Exploitation Mechanism
The vulnerability can be exploited by sending authenticated HTTP requests to the 'stat_filter' parameter.
Mitigation and Prevention
Discover the steps to secure your systems against CVE-2021-21931 and prevent potential exploitation.
Immediate Steps to Take
Ensure all HTTP requests, especially those targeting the 'stat_filter' parameter, undergo rigorous input validation to prevent SQL injection attacks.
Long-Term Security Practices
Implement strict access controls, conduct security audits, and educate users on safe browsing practices to mitigate the risk of successful attacks.
Patching and Updates
Regularly monitor vendor security advisories and promptly apply patches or updates to address known vulnerabilities and enhance system security.