CVE-2020-6882 : Vulnerability Insights and Analysis

ZTE E8810/E8820/E8822 series routers are affected by an information leak vulnerability due to hard-coded MQTT service access credentials. Attackers could exploit this to access the MQTT server and gather data about other devices.

Understanding CVE-2020-6882

This CVE involves an information leak vulnerability in ZTE routers.

What is CVE-2020-6882?

The vulnerability stems from hardcoded MQTT service access credentials on ZTE E8810, E8820, and E8822 routers, allowing remote attackers to connect to the MQTT server and extract information about other devices.

The Impact of CVE-2020-6882

The vulnerability enables unauthorized access to sensitive data, potentially compromising the security and privacy of affected devices and networks.

Technical Details of CVE-2020-6882

ZTE routers are susceptible to an information leak vulnerability due to hardcoded MQTT service access credentials.

Vulnerability Description

The flaw allows remote attackers to exploit hard-coded MQTT service access credentials to access the MQTT server and retrieve information about other devices.

Affected Systems and Versions

Products: ZXHN E8810, ZXHN E8820, ZXHN E8822
Versions: E8810 V1.0.26, E8810 V2.0.1, E8820 V1.1.3L, E8820 V2.0.13, E8822 V2.0.13

Exploitation Mechanism

Attackers can leverage the hardcoded MQTT service access credentials to connect to the MQTT server and extract data by sending specific topics.

Mitigation and Prevention

Taking immediate action and implementing long-term security measures are crucial to mitigate the risks associated with CVE-2020-6882.

Immediate Steps to Take

Disable remote access to the MQTT service if not required
Monitor network traffic for any suspicious activities
Apply vendor-supplied patches or updates promptly

Long-Term Security Practices

Regularly update firmware and software to address security vulnerabilities
Implement strong access controls and authentication mechanisms
Conduct regular security audits and assessments

Patching and Updates

ZTE may release patches or updates to address the hardcoded MQTT service access credentials issue. Stay informed about security advisories and apply patches as soon as they are available.