CVE-2018-20441 Explained : Impact and Mitigation

Technicolor TC7200.TH2v2 SC05.00.22 firmware version may expose devices to remote attacks allowing unauthorized access to Wi-Fi credentials via SNMP requests.

Understanding CVE-2018-20441

Devices with the specified firmware version are susceptible to a security vulnerability that enables attackers to retrieve Wi-Fi credentials remotely using specific SNMP requests.

What is CVE-2018-20441?

The vulnerability in Technicolor TC7200.TH2v2 SC05.00.22 firmware allows malicious actors to exploit SNMP requests to obtain Wi-Fi credentials, potentially compromising network security.

The Impact of CVE-2018-20441

This vulnerability poses a significant risk as attackers can gain unauthorized access to Wi-Fi credentials, leading to potential breaches of sensitive information and network compromise.

Technical Details of CVE-2018-20441

Devices affected by CVE-2018-20441 are at risk due to the following technical aspects:

Vulnerability Description

The flaw in Technicolor TC7200.TH2v2 SC05.00.22 firmware permits attackers to extract Wi-Fi credentials through specific SNMP requests, exposing network security.

Affected Systems and Versions

Product: Technicolor TC7200.TH2v2
Firmware Version: SC05.00.22

Exploitation Mechanism

Attackers exploit SNMP requests, specifically iso.3.6.1.4.1.2863.205.10.1.30.4.1.14.1.3.32 and iso.3.6.1.4.1.2863.205.10.1.30.4.2.4.1.2.32, to retrieve Wi-Fi credentials remotely.

Mitigation and Prevention

To address CVE-2018-20441 and enhance security measures, consider the following steps:

Immediate Steps to Take

Disable SNMP if not required for network operations
Implement strong Wi-Fi password policies
Regularly monitor network activity for suspicious behavior

Long-Term Security Practices

Conduct regular security audits and assessments
Keep firmware and software up to date
Educate users on cybersecurity best practices

Patching and Updates

Check for firmware updates from Technicolor and apply patches promptly to mitigate the vulnerability.