CVE-2020-6879 : Exploit Details and Defense Strategies

ZTE devices are affected by input verification vulnerabilities that allow attackers to tamper with parameter values.

Understanding CVE-2020-6879

What is CVE-2020-6879?

CVE-2020-6879 is a vulnerability found in ZTE devices that enables attackers to bypass input verification mechanisms and manipulate parameter values.

The Impact of CVE-2020-6879

The vulnerability allows attackers to tamper with parameter values, potentially leading to unauthorized access or system compromise.

Technical Details of CVE-2020-6879

Vulnerability Description

The vulnerability arises from a flaw in the input verification process of ZTE devices, allowing attackers to bypass restrictions and manipulate parameter values.

Affected Systems and Versions

Affected products: ZXHN Z500 V1.0.0.2B1.1000, ZXHN F670L V1.1.10P1N2E
Fixed versions: ZXHN Z500 V1.0.1.1B1.1000, ZXHN F670L V1.1.10P2N2

Exploitation Mechanism

Attackers can exploit this vulnerability by constructing a POST request message to the static routing rule configuration interface, bypassing input verification.

Mitigation and Prevention

Immediate Steps to Take

Update affected devices to the fixed versions promptly.
Implement network segmentation to limit the impact of potential attacks.

Long-Term Security Practices

Regularly monitor and audit network traffic for any suspicious activities.
Train users on best practices for identifying and reporting potential security threats.

Patching and Updates

Apply security patches provided by ZTE to address the vulnerability and enhance device security.