CVE-2021-21921 Explained : Impact and Mitigation
Understand CVE-2021-21921, a high-severity vulnerability in Advantech's R-SeeNet software allowing SQL injection via specially-crafted HTTP requests. Learn the impact, affected versions, and mitigation steps.
This article provides detailed information about CVE-2021-21921, a vulnerability in Advantech's R-SeeNet software that can be exploited via SQL injection.
Understanding CVE-2021-21921
CVE-2021-21921 is a vulnerability in Advantech's R-SeeNet software that allows an attacker to trigger SQL injection through specially-crafted HTTP requests.
What is CVE-2021-21921?
A specially-crafted HTTP request can lead to SQL injection. An attacker can make authenticated HTTP requests to trigger this vulnerability at the 'name_filter' parameter with the administrative account or through cross-site request forgery.
The Impact of CVE-2021-21921
The vulnerability has a CVSSv3 base score of 7.7, indicating a high severity level with a significant impact on confidentiality.
Technical Details of CVE-2021-21921
This section provides technical details about the vulnerability.
Vulnerability Description
The vulnerability in Advantech's R-SeeNet software allows for SQL injection through the 'name_filter' parameter.
Affected Systems and Versions
Advantech R-SeeNet version 2.4.15 (30.07.2021) is affected by this vulnerability.
Exploitation Mechanism
An attacker can exploit this vulnerability by sending specially-crafted HTTP requests to the 'name_filter' parameter.
Mitigation and Prevention
Learn how to mitigate and prevent exploitation of CVE-2021-21921.
Immediate Steps to Take
Apply security patches provided by Advantech to mitigate the vulnerability.
Long-Term Security Practices
Regularly update and monitor the software for any security patches or updates released by the vendor.
Patching and Updates
Keep the affected software up to date with the latest security patches and updates.