CVE-2021-33527 : Vulnerability Insights and Analysis
Learn about CVE-2021-33527, an OS Command Injection vulnerability in MB connect line mbDIALUP versions <= 3.9R0.0. Understand its impact, technical details, and mitigation steps to secure your systems.
A detailed overview of CVE-2021-33527, an OS Command Injection vulnerability in mbDIALUP <= 3.9R0.0, affecting MB connect line products.
Understanding CVE-2021-33527
This section will cover what CVE-2021-33527 is, its impact, technical details, and mitigation steps.
What is CVE-2021-33527?
CVE-2021-33527 is an OS Command Injection vulnerability found in MB connect line mbDIALUP versions equal to or below 3.9R0.0. This vulnerability allows a remote attacker to execute arbitrary code with the system service's privileges by sending a specially crafted HTTP request.
The Impact of CVE-2021-33527
With a CVSS base score of 9.8 (Critical), this vulnerability has a high impact on confidentiality, integrity, and availability of affected systems. Attackers can exploit this flaw to execute malicious commands on the target system.
Technical Details of CVE-2021-33527
Let's delve into the technical specifics of CVE-2021-33527, including its vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The vulnerability in MB connect line mbDIALUP versions <= 3.9R0.0 allows remote attackers to bypass input validation, leading to arbitrary code execution under NT AUTHORITY\SYSTEM privileges.
Affected Systems and Versions
The vulnerability impacts MB connect line's mbDIALUP product with versions equal to or below 3.9R0.0.
Exploitation Mechanism
By sending a crafted HTTP request to the system service, an attacker can exploit this vulnerability to execute unauthorized commands on the target system.
Mitigation and Prevention
This section outlines the necessary steps to mitigate the risks associated with CVE-2021-33527 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update their mbDIALUP software to version 3.9R0.5 immediately to eliminate the vulnerability.
Long-Term Security Practices
Implementing a robust software security protocol, regular security audits, and monitoring can help prevent similar vulnerabilities in the future.
Patching and Updates
Regularly apply security patches and updates provided by MB connect line to ensure the latest security features and fixes are in place.