CVE-2021-21744 : Exploit Details and Defense Strategies

ZTE MF971R product has a configuration file control vulnerability that could allow an attacker to modify device configuration parameters and disable security functions.

Understanding CVE-2021-21744

This CVE describes a vulnerability in ZTE's MF971R product that enables unauthorized manipulation of device configuration files, potentially leading to security compromises.

What is CVE-2021-21744?

The CVE-2021-21744 vulnerability affects the ZTE MF971R product, allowing attackers to exploit a configuration file control weakness to alter device settings and disable critical security features.

The Impact of CVE-2021-21744

If exploited, this vulnerability could compromise the integrity and security of ZTE MF971R devices, exposing them to unauthorized access and potential misuse.

Technical Details of CVE-2021-21744

This section delves into the specifics of the vulnerability, including its description, affected systems, versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in ZTE MF971R permits threat actors to tamper with device configurations, potentially resulting in the deactivation of essential security functionalities crucial for device protection.

Affected Systems and Versions

The vulnerability impacts ZTE MF971R devices running specific firmware versions, including 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 can exploit the vulnerability by leveraging the insecure configuration file handling in ZTE MF971R devices, allowing them to maliciously alter device settings and compromise security.

Mitigation and Prevention

To address CVE-2021-21744, users and organizations must take immediate steps to mitigate the risk and establish long-term security practices.

Immediate Steps to Take

Users should apply security patches provided by ZTE promptly to eliminate the vulnerability and protect their MF971R devices from potential exploitation.

Long-Term Security Practices

Implementing network segmentation, access controls, and regular security audits can help prevent unauthorized access and maintain the integrity of ZTE MF971R devices.

Patching and Updates

Regularly check for security updates and patches released by ZTE to address vulnerabilities like CVE-2021-21744, ensuring the ongoing security of MF971R products.