CVE-2021-33824 : Exploit Details and Defense Strategies
Learn about CVE-2021-33824, a vulnerability in MOXA Mgate MB3180 Version 2.1 Build 18113012 that allows attackers to launch denial-of-service attacks using slowhttptest tool.
An issue was discovered on MOXA Mgate MB3180 Version 2.1 Build 18113012, where attackers can exploit a vulnerability using the slowhttptest tool to send incomplete HTTP requests, causing the server to exhaust its resources and lead to a denial-of-service condition.
Understanding CVE-2021-33824
This section will delve into the details of the CVE-2021-33824 vulnerability.
What is CVE-2021-33824?
The CVE-2021-33824 vulnerability affects MOXA Mgate MB3180 Version 2.1 Build 18113012, allowing attackers to launch a denial-of-service attack by sending incomplete HTTP requests using the slowhttptest tool.
The Impact of CVE-2021-33824
The exploitation of this vulnerability can result in a denial-of-service condition, rendering the web server unresponsive due to resource exhaustion.
Technical Details of CVE-2021-33824
In this section, we will explore the technical aspects of CVE-2021-33824 in more detail.
Vulnerability Description
Attackers can leverage the slowhttptest tool to send incomplete HTTP requests, causing the server to wait indefinitely for the request to complete, ultimately leading to a denial-of-service scenario.
Affected Systems and Versions
MOXA Mgate MB3180 Version 2.1 Build 18113012 is specifically impacted by this vulnerability.
Exploitation Mechanism
By exploiting the slow HTTP header processing of the affected device, attackers can exhaust server resources and disrupt the web server's normal operation.
Mitigation and Prevention
This section will provide insights on mitigating the risks associated with CVE-2021-33824.
Immediate Steps to Take
It is recommended to implement network-level protections and filtering to block suspicious HTTP traffic that could exploit this vulnerability.
Long-Term Security Practices
Regularly update and patch the affected systems and devices to address any known vulnerabilities and enhance the overall security posture.
Patching and Updates
Stay informed about security advisories from MOXA and apply relevant patches and updates promptly to reduce the risk of exploitation.