CVE-2019-20729 : Exploit Details and Defense Strategies

Several NETGEAR devices have been identified with incorrect security settings configurations, affecting various models.

Understanding CVE-2019-20729

This CVE involves multiple NETGEAR router models with security misconfiguration issues.

What is CVE-2019-20729?

The vulnerability pertains to incorrect security settings on specific NETGEAR router models, potentially exposing them to security risks.

The Impact of CVE-2019-20729

CVSS Base Score: 8.1 (High Severity)
Attack Vector: Local
Attack Complexity: Low
Privileges Required: High
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: Low
Scope: Changed
User Interaction: None

Technical Details of CVE-2019-20729

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability involves incorrect security settings on various NETGEAR router models, potentially leading to unauthorized access and data compromise.

Affected Systems and Versions

The following NETGEAR router models are impacted:

JNDR3000 (version prior to 1.0.0.22)
R6250 (version prior to 1.0.4.26)
R6300v2 (version prior to 1.0.4.22)
R6400 (version prior to 1.0.1.36)
R6400v2 (version prior to 1.0.2.52)
R6700 (version prior to 1.0.1.44)
R6900 (version prior to 1.0.1.44)
R7000 (version prior to 1.0.9.28)
R6900P (version prior to 1.3.1.26)
R7000P (version prior to 1.3.1.26)
R7300DST (version prior to 1.0.0.62)
R7900 (version prior to 1.0.2.16)
R8000 (version prior to 1.0.4.18)
R7900P (version prior to 1.4.1.42)
R8000P (version prior to 1.4.1.42)
R8300 (version prior to 1.0.2.116)
R8500 (version prior to 1.0.2.116)
WNDR3400v3 (version prior to 1.0.1.18)
WNDR4500v2 (version prior to 1.0.0.68)
WNR3500Lv2 (version prior to 1.2.0.48)

Exploitation Mechanism

The vulnerability can be exploited by attackers with high privileges, allowing them to compromise the confidentiality and integrity of the affected systems.

Mitigation and Prevention

Protecting systems from CVE-2019-20729 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the firmware of the affected NETGEAR routers to the latest versions provided by the manufacturer.
Implement strong and unique passwords for router access.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly check for firmware updates and apply them promptly.
Enable firewall settings on the routers to enhance network security.

Patching and Updates

Regularly check the NETGEAR support page for any new security advisories and patches to address vulnerabilities.