CVE-2018-20384 : Exploit Details and Defense Strategies

The iNovo Broadband devices, IB-8120-W21 139.4410mp1.004200.002 and IB-8120-W21E1 139.4410mp1.3921132mp1.899.004404.004, have a vulnerability that allows remote attackers to discover credentials by sending SNMP requests.

Understanding CVE-2018-20384

This CVE involves a security vulnerability in iNovo Broadband devices that can be exploited by remote attackers to uncover credentials through specific SNMP requests.

What is CVE-2018-20384?

The vulnerability in iNovo Broadband devices allows remote attackers to discover credentials by sending SNMP requests for specific OID values.

The Impact of CVE-2018-20384

Remote attackers can exploit this vulnerability to retrieve sensitive credentials from affected devices.

Technical Details of CVE-2018-20384

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability enables remote attackers to extract credentials by sending SNMP requests for specific OID values on iNovo Broadband devices.

Affected Systems and Versions

Devices: IB-8120-W21 139.4410mp1.004200.002 and IB-8120-W21E1 139.4410mp1.3921132mp1.899.004404.004
Versions: Not specified

Exploitation Mechanism

Attackers can exploit the vulnerability by sending SNMP requests for iso.3.6.1.4.1.4491.2.4.1.1.6.1.1.0 and iso.3.6.1.4.1.4491.2.4.1.1.6.1.2.0 to the devices.

Mitigation and Prevention

Protecting against and addressing the CVE-2018-20384 vulnerability.

Immediate Steps to Take

Disable SNMP if not essential for device operation.
Implement firewall rules to restrict SNMP access to trusted sources.
Regularly monitor SNMP traffic for any suspicious activity.

Long-Term Security Practices

Conduct regular security assessments and audits on network devices.
Keep devices up to date with the latest firmware and security patches.

Patching and Updates

Apply patches or updates provided by iNovo Broadband to address the vulnerability.