CVE-2019-20692 : Vulnerability Insights and Analysis

An unauthorized attacker can exploit a stack-based buffer overflow vulnerability on specific models of NETGEAR devices.

Understanding CVE-2019-20692

What is CVE-2019-20692?

Certain NETGEAR devices are affected by a stack-based buffer overflow vulnerability that can be exploited by an unauthenticated attacker.

The Impact of CVE-2019-20692

This vulnerability affects various NETGEAR models and versions, potentially leading to unauthorized access and compromise of confidentiality and integrity.

Technical Details of CVE-2019-20692

Vulnerability Description

Type: Stack-based buffer overflow
Attack Vector: Local
Privileges Required: High
Scope: Unchanged
CVSS Base Score: 6.3 (Medium)

Affected Systems and Versions

The following NETGEAR models are affected:

D6220, D6400, D7000v2, D8500, DGN2200v4, DGND2200Bv4, EX3700, EX3800, EX6000, EX6100, EX6120, EX6130, EX6150v1, EX6200, EX7000, R6250, R6300v2, R6400, R6400v2, R6700, R6900, R7000, R6900P, R7000P, R7100LG, R7300DST, R7900, R8000, R7900P, R8000P, R8300, R8500, WN2500RPv2, WNDR3400v3, WNR3500Lv2.

Exploitation Mechanism

The vulnerability can be exploited by an unauthorized attacker through a stack-based buffer overflow, potentially leading to unauthorized access and compromise of system integrity and confidentiality.

Mitigation and Prevention

Immediate Steps to Take

Apply security patches provided by NETGEAR for the affected models.
Implement network segmentation to limit the impact of potential attacks.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware and software to address security vulnerabilities.
Conduct security assessments and penetration testing to identify and mitigate potential risks.

Patching and Updates

Regularly check for firmware updates and security advisories from NETGEAR.
Apply patches promptly to ensure the security of the devices.