CVE-2019-10892 : Vulnerability Insights and Analysis

A vulnerability has been identified in D-Link DIR-806 devices, involving a stack-based buffer overflow in the hnap_main function.

Understanding CVE-2019-10892

This CVE describes a critical security issue in D-Link DIR-806 devices that can be exploited through a specific HTTP header manipulation.

What is CVE-2019-10892?

The vulnerability allows users to trigger a stack-based buffer overflow by providing maliciously crafted parameters in the HTTP header, potentially leading to arbitrary code execution.

The Impact of CVE-2019-10892

Exploitation of this vulnerability could result in unauthorized access, data manipulation, or even complete system compromise on affected devices.

Technical Details of CVE-2019-10892

This section provides more in-depth technical insights into the vulnerability.

Vulnerability Description

The issue stems from the hnap_main function in D-Link DIR-806 devices, where a lack of string length verification in HTTP header parameters enables a stack-based buffer overflow.

Affected Systems and Versions

Product: D-Link DIR-806
Vendor: D-Link
Versions: All versions are affected

Exploitation Mechanism

By manipulating a specific HTTP header, attackers can exploit the vulnerability to trigger a stack-based buffer overflow, potentially leading to the execution of arbitrary code.

Mitigation and Prevention

Protecting systems from CVE-2019-10892 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches provided by D-Link promptly.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.
Educate users and administrators on secure practices to prevent exploitation.
Consider implementing intrusion detection and prevention systems.
Follow security best practices and guidelines to enhance overall cybersecurity posture.

Patching and Updates

Ensure that all D-Link DIR-806 devices are updated with the latest firmware releases to mitigate the vulnerability and enhance overall system security.