CVE-2021-21730 : What You Need to Know

A ZTE product, ZXHN H168N V3.5.0_TY.T6, is affected by an improper access control vulnerability that could be exploited by attackers using brute force attacks to access the CLI.

Understanding CVE-2021-21730

This CVE identifies a security vulnerability in the ZXHN H168N device from ZTE that allows unauthorized access through brute force attacks.

What is CVE-2021-21730?

The vulnerability pertains to improper access control in the affected ZTE product, ZXHN H168N V3.5.0_TY.T6. Attackers can exploit this flaw to gain access to the CLI using brute force techniques.

The Impact of CVE-2021-21730

This vulnerability poses a security risk as unauthorized individuals could potentially gain access to the device's Command Line Interface (CLI) through illegitimate means.

Technical Details of CVE-2021-21730

The technical details include a description of the vulnerability, the affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in ZXHN H168N V3.5.0_TY.T6 allows attackers to exploit improper access control, enabling unauthorized access to the CLI.

Affected Systems and Versions

Affected product: ZXHN H168N Affected version: V3.5.0_TY.T6

Exploitation Mechanism

Attackers can exploit this vulnerability through brute force attacks to access the CLI.

Mitigation and Prevention

To address CVE-2021-21730, it is essential to take immediate steps, implement long-term security practices, and apply necessary patches and updates.

Immediate Steps to Take

Change default passwords and implement strong authentication measures.
Monitor CLI access for suspicious activities.

Long-Term Security Practices

Regularly update firmware and security patches.
Conduct security audits and penetration testing.

Patching and Updates

Keep the ZTE product's firmware up to date with the latest security patches provided by the vendor.