CVE-2021-43636 Explained : Impact and Mitigation

T10 V2_Firmware V4.1.8cu.5207_B20210320 contains two Buffer Overflow vulnerabilities that affect the http_request_parse function during host data processing in the HTTP request.

Understanding CVE-2021-43636

This CVE focuses on Buffer Overflow vulnerabilities in T10 V2_Firmware V4.1.8cu.5207_B20210320.

What is CVE-2021-43636?

CVE-2021-43636 highlights two Buffer Overflow vulnerabilities present in T10 V2_Firmware V4.1.8cu.5207_B20210320 while processing host data within the HTTP request.

The Impact of CVE-2021-43636

The vulnerabilities allow attackers to potentially execute arbitrary code or cause a denial of service by exploiting the buffer overflow issues.

Technical Details of CVE-2021-43636

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerabilities arise in the http_request_parse function due to insufficient validation of user-supplied data, leading to buffer overflows.

Affected Systems and Versions

Product: T10 V2_Firmware
Version: V4.1.8cu.5207_B20210320

Exploitation Mechanism

By sending specially crafted host data in an HTTP request, attackers can trigger the buffer overflow, potentially gaining unauthorized access or disrupting services.

Mitigation and Prevention

Discover the necessary steps to secure systems and prevent exploitation.

Immediate Steps to Take

Disable unnecessary services to reduce attack surface
Implement input validation to prevent buffer overflows
Apply network-level controls to detect and block malicious traffic

Long-Term Security Practices

Regularly update firmware and software patches
Conduct security training for staff on potential threats and safe practices
Perform frequent security audits and penetration testing

Patching and Updates

Ensure timely application of vendor-supplied patches and updates to address the vulnerabilities in T10 V2_Firmware V4.1.8cu.5207_B20210320.