CVE-2018-20440 : What You Need to Know

Remote attackers can use SNMP requests to discover Wi-Fi credentials on Technicolor CWA0101 CWA0101E-A23E-c7000r5712-170315-SKC devices.

Understanding CVE-2018-20440

This CVE involves a vulnerability that allows remote attackers to obtain Wi-Fi credentials through specific SNMP requests.

What is CVE-2018-20440?

CVE-2018-20440 is a security vulnerability that enables attackers to discover Wi-Fi credentials on Technicolor CWA0101 devices using SNMP requests.

The Impact of CVE-2018-20440

The exploitation of this vulnerability can lead to unauthorized access to Wi-Fi networks, compromising sensitive information and potentially enabling further attacks.

Technical Details of CVE-2018-20440

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Technicolor CWA0101 CWA0101E-A23E-c7000r5712-170315-SKC devices allows attackers to retrieve Wi-Fi credentials via specific SNMP requests.

Affected Systems and Versions

Product: Technicolor CWA0101 CWA0101E-A23E-c7000r5712-170315-SKC
Versions: All versions are affected

Exploitation Mechanism

Attackers can exploit the vulnerability by sending SNMP requests iso.3.6.1.4.1.4413.2.2.2.1.5.4.1.14.1.3.10001 and 1.3.6.1.4.1.4413.2.2.2.1.18.1.2.3.4.1.2.10001 to the devices.

Mitigation and Prevention

Protecting against and addressing the CVE-2018-20440 vulnerability.

Immediate Steps to Take

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

Long-Term Security Practices

Keep devices up to date with the latest firmware and security patches
Conduct regular security assessments and penetration testing
Educate users on secure Wi-Fi practices

Patching and Updates

Apply vendor-supplied patches promptly to address the vulnerability