CVE-2021-21745 : What You Need to Know

ZTE MF971R product has a Referer authentication bypass vulnerability that could allow an attacker to perform unauthorized operations without CSRF verification.

Understanding CVE-2021-21745

This CVE details a security vulnerability in the ZTE MF971R product that could lead to unauthorized authorization operations.

What is CVE-2021-21745?

ZTE MF971R product is susceptible to a Referer authentication bypass vulnerability, enabling attackers to exploit this flaw for illegal authorization actions.

The Impact of CVE-2021-21745

The vulnerability poses a risk of unauthorized access and potentially harmful actions being performed on affected systems.

Technical Details of CVE-2021-21745

This section explores the specific technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from a Referer authentication bypass in the ZTE MF971R product, allowing attackers to execute unauthorized actions.

Affected Systems and Versions

The affected versions include BD_ZTE_MF971RV1.0.0B05, BD_PLKPLMF971R1V1.0.0B06, BD_MF971R2V1.0.0B03, BD_ZTE_MF971RS2V1.0.0B03, and BD_ZTE_MF971RSV1.0.0B05.

Exploitation Mechanism

Attackers exploit the vulnerability by leveraging the lack of CSRF verification to trick users into unauthorized actions.

Mitigation and Prevention

This section provides guidance on mitigating the risks associated with CVE-2021-21745.

Immediate Steps to Take

Users should apply the necessary security updates and configurations to mitigate the vulnerability immediately after its disclosure.

Long-Term Security Practices

Enforcing robust authentication and authorization mechanisms and staying updated with security patches are crucial for long-term security.

Patching and Updates

Regularly checking for software updates and promptly applying patches released by ZTE can help prevent exploitation of this vulnerability.