CVE-2018-20438 : Security Advisory and Response

Technicolor TC7110.AR STD3.38.03 devices are vulnerable to remote attacks that can lead to the retrieval of Wi-Fi credentials through specific SNMP requests.

Understanding CVE-2018-20438

This CVE entry highlights a security vulnerability in Technicolor TC7110.AR STD3.38.03 devices that can be exploited by remote attackers to obtain Wi-Fi credentials.

What is CVE-2018-20438?

The CVE-2018-20438 vulnerability allows malicious actors to retrieve Wi-Fi credentials from affected Technicolor TC7110.AR STD3.38.03 devices using specific SNMP requests.

The Impact of CVE-2018-20438

This vulnerability poses a significant risk as it enables unauthorized access to sensitive Wi-Fi credentials, compromising network security and potentially leading to further exploitation of the affected devices.

Technical Details of CVE-2018-20438

Technicolor TC7110.AR STD3.38.03 devices are susceptible to exploitation through SNMP requests.

Vulnerability Description

Remote attackers can exploit this vulnerability to retrieve Wi-Fi credentials by sending 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 SNMP requests.

Affected Systems and Versions

Product: Technicolor TC7110.AR STD3.38.03
Vendor: Technicolor
Version: STD3.38.03

Exploitation Mechanism

The vulnerability can be exploited remotely by sending specific SNMP requests to the affected devices, allowing attackers to retrieve Wi-Fi credentials.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks associated with CVE-2018-20438.

Immediate Steps to Take

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

Long-Term Security Practices

Conduct regular security assessments and audits of network devices
Keep devices up to date with the latest firmware and security patches
Educate users on best practices for securing network devices

Patching and Updates

Apply patches and updates provided by Technicolor to address the CVE-2018-20438 vulnerability