CVE-2020-11789 : Exploit Details and Defense Strategies

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects R6400v2 before 1.0.4.84, R6700 before 1.0.2.8, R6700v3 before 1.0.4.84, R6900 before 1.0.2.8, and R7900 before 1.0.3.10.

Understanding CVE-2020-11789

This CVE involves command injection vulnerability in specific NETGEAR devices, allowing unauthorized attackers to execute commands.

What is CVE-2020-11789?

CVE-2020-11789 is a security vulnerability that enables unauthenticated attackers to perform command injection on certain NETGEAR routers.

The Impact of CVE-2020-11789

The vulnerability has a high severity level with a CVSS base score of 8.3. It can lead to unauthorized command execution with high confidentiality and integrity impact.

Technical Details of CVE-2020-11789

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability allows unauthenticated attackers to inject and execute commands on affected NETGEAR devices.

Affected Systems and Versions

R6400v2 before 1.0.4.84
R6700 before 1.0.2.8
R6700v3 before 1.0.4.84
R6900 before 1.0.2.8
R7900 before 1.0.3.10

Exploitation Mechanism

The vulnerability can be exploited by sending crafted requests to the affected devices, enabling attackers to execute arbitrary commands.

Mitigation and Prevention

Protecting systems from CVE-2020-11789 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected devices to the latest firmware versions provided by NETGEAR.
Implement strong network access controls to limit unauthorized access.
Monitor network traffic for any suspicious activities.

Long-Term Security Practices

Regularly update firmware and security patches on all network devices.
Conduct security audits and penetration testing to identify vulnerabilities.
Educate users on safe browsing habits and security best practices.

Patching and Updates

NETGEAR has released patches to address the vulnerability. Ensure all affected devices are updated to the latest firmware versions.