CVE-2019-20682 : Vulnerability Insights and Analysis

An unauthenticated attacker can exploit a stack-based buffer overflow vulnerability in certain NETGEAR devices. This vulnerability affects various models and firmware versions.

Understanding CVE-2019-20682

This CVE involves a critical vulnerability in NETGEAR devices that could be exploited by an unauthenticated attacker.

What is CVE-2019-20682?

The CVE-2019-20682 vulnerability is a stack-based buffer overflow issue found in specific NETGEAR devices, allowing attackers to execute arbitrary code.

The Impact of CVE-2019-20682

The vulnerability has a CVSS base score of 8.8, indicating a high severity level with significant impacts on confidentiality, integrity, and availability of the affected systems.

Technical Details of CVE-2019-20682

This section provides more in-depth technical insights into the CVE-2019-20682 vulnerability.

Vulnerability Description

The vulnerability allows unauthenticated attackers to trigger a stack-based buffer overflow on certain NETGEAR devices, potentially leading to remote code execution.

Affected Systems and Versions

The following NETGEAR models and firmware versions are impacted by this vulnerability:

D3600 (prior to 1.0.0.76)
D6000 (prior to 1.0.0.76)
D6200 (prior to 1.1.00.32)
D7000 (prior to 1.0.1.68)
JR6150 (prior to 1.0.1.18)
PR2000 (prior to 1.0.0.28)
R6020 (prior to 1.0.0.38)
R6050 (prior to 1.0.1.18)
R6080 (prior to 1.0.0.38)
R6120 (prior to 1.0.0.46)
R6220 (prior to 1.1.0.80)
R6260 (prior to 1.1.0.40)
R6700v2 (prior to 1.2.0.36)
R6800 (prior to 1.2.0.36)
R6900v2 (prior to 1.2.0.36)
WNR2020 (prior to 1.1.0.62)
XR500 (prior to 2.3.2.32)

Exploitation Mechanism

The vulnerability can be exploited by an unauthenticated attacker through a stack-based buffer overflow, enabling them to compromise the affected devices.

Mitigation and Prevention

To address CVE-2019-20682, users and administrators should take immediate and long-term security measures.

Immediate Steps to Take

Apply security patches provided by NETGEAR for the affected devices.
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 mitigate known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.

Patching and Updates

Ensure that all affected NETGEAR devices are updated with the latest firmware releases to patch the CVE-2019-20682 vulnerability.