Discover the impact and technical details of CVE-2021-21917, a high-severity SQL injection vulnerability in Advantech R-SeeNet 2.4.15. Learn how to mitigate the risk and protect your systems.
An SQL injection vulnerability has been identified in Advantech R-SeeNet 2.4.15, allowing attackers to execute malicious SQL commands through specially-crafted HTTP requests. This could result in unauthorized access and data manipulation.
Understanding CVE-2021-21917
This section provides an in-depth look at the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2021-21917?
The CVE-2021-21917 vulnerability refers to an SQL injection flaw present in the 'group_list' page of Advantech R-SeeNet 2.4.15. Attackers can exploit this weakness by sending crafted HTTP requests with the 'ord' parameter, leading to unauthorized SQL commands execution.
The Impact of CVE-2021-21917
With a CVSS base score of 7.7 (High severity), this vulnerability poses a significant risk. It allows attackers to access or modify sensitive data within the affected system, potentially leading to data breaches, data loss, or further exploitation.
Technical Details of CVE-2021-21917
Let's delve into the specifics of this security issue, including how systems are affected and how threat actors can leverage it.
Vulnerability Description
The vulnerability arises from improper handling of user inputs in the 'group_list' page, enabling attackers to insert malicious SQL queries. This can be triggered through a specially-crafted HTTP request, allowing for unauthorized access.
Affected Systems and Versions
Advantech R-SeeNet 2.4.15 (30.07.2021) is confirmed to be affected by this vulnerability. Systems with this version installed are at risk of exploitation via SQL injection attacks.
Exploitation Mechanism
Attackers can exploit CVE-2021-21917 by sending crafted HTTP requests with specific parameters, such as 'ord,' to inject malicious SQL commands. This can be achieved by authenticated users or through cross-site request forgery tactics.
Mitigation and Prevention
Protecting systems from CVE-2021-21917 requires immediate action and long-term security measures. Here's what you need to do:
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Stay informed about security updates released by Advantech and apply them as soon as they are available to ensure protection against known vulnerabilities.