CVE-2019-15066 Explained : Impact and Mitigation

A vulnerability related to the handling of "invalid commands" has been identified in the HiNet GPON firmware version < I040GWR190731, allowing unauthorized execution of arbitrary commands via port 6998. The CVSS 3.0 Base score for this critical vulnerability is 10.0.

Understanding CVE-2019-15066

This CVE involves a remote command execution vulnerability in the HiNet GPON firmware version < I040GWR190731 on port 6998.

What is CVE-2019-15066?

CVE-2019-15066 is a critical vulnerability in the HiNet GPON firmware version < I040GWR190731 that enables attackers to execute arbitrary commands through port 6998.

The Impact of CVE-2019-15066

CVSS Base Score: 10.0 (Critical)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Scope: Changed
User Interaction: None

Technical Details of CVE-2019-15066

This section provides detailed technical information about the vulnerability.

Vulnerability Description

An "invalid command" handler issue in HiNet GPON firmware < I040GWR190731 allows attackers to execute arbitrary commands via port 6998.

Affected Systems and Versions

Product: GPON
Vendor: HiNET
Affected Version: firmware < I040GWR190731

Exploitation Mechanism

The vulnerability can be exploited by sending "invalid commands" to the affected system through port 6998.

Mitigation and Prevention

Protect your systems from CVE-2019-15066 with the following steps:

Immediate Steps to Take

Update the HiNet GPON firmware to a version that addresses the vulnerability.
Monitor network traffic for any suspicious activity on port 6998.

Long-Term Security Practices

Implement network segmentation to limit the impact of potential attacks.
Regularly conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Apply security patches provided by HiNET promptly to mitigate the vulnerability.