CVE-2018-20443 : Security Advisory and Response

Technicolor TC7200.d1I and TC7200.d1IE-N23E-c7000r5712-170406-HAT devices are vulnerable to remote attacks allowing the retrieval of Wi-Fi credentials via specific SNMP requests.

Understanding CVE-2018-20443

The vulnerability in Technicolor TC7200.d1I and TC7200.d1IE-N23E-c7000r5712-170406-HAT devices enables attackers to obtain Wi-Fi credentials remotely.

What is CVE-2018-20443?

The vulnerability in these devices allows remote attackers to extract Wi-Fi credentials by sending SNMP requests with specific OIDs.

The Impact of CVE-2018-20443

This vulnerability poses a significant security risk as it enables unauthorized access to Wi-Fi credentials, compromising network security and privacy.

Technical Details of CVE-2018-20443

The technical aspects of the CVE-2018-20443 vulnerability are as follows:

Vulnerability Description

Attackers can exploit the vulnerability by sending SNMP requests with specific OIDs to retrieve Wi-Fi credentials.

Affected Systems and Versions

Technicolor TC7200.d1I
Technicolor TC7200.d1IE-N23E-c7000r5712-170406-HAT

Exploitation Mechanism

The vulnerability is exploited by sending SNMP requests with specific OIDs to the affected devices.

Mitigation and Prevention

To address CVE-2018-20443, the following steps are recommended:

Immediate Steps to Take

Disable SNMP if not required
Implement strong firewall rules to restrict SNMP access
Regularly monitor network traffic for any suspicious SNMP activity

Long-Term Security Practices

Keep devices up to date with the latest firmware
Conduct regular security audits and assessments to identify vulnerabilities

Patching and Updates

Apply patches and updates provided by Technicolor to fix the vulnerability