CVE-2019-20727 : Vulnerability Insights and Analysis
Learn about CVE-2019-20727 affecting NETGEAR devices like D6100, R7800, and XR500. Understand the impact, affected systems, and mitigation steps to secure your network.
NETGEAR devices including D6100, R7800, R8900, R9000, WNDR3700v4, WNDR4300v1, WNDR4300v2, WNDR4500v3, WNR2000v5, and XR500 are affected by a command injection vulnerability when an authenticated user is involved.
Understanding CVE-2019-20727
This CVE involves a command injection vulnerability in several NETGEAR device models, potentially allowing authenticated users to execute arbitrary commands.
What is CVE-2019-20727?
The vulnerability allows authenticated users to inject commands into affected NETGEAR devices, leading to potential unauthorized command execution.
The Impact of CVE-2019-20727
- CVSS Base Score: 6.8 (Medium)
- Attack Vector: Adjacent Network
- Attack Complexity: Low
- Privileges Required: High
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2019-20727
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability allows authenticated users to inject commands into specific NETGEAR devices, potentially leading to unauthorized command execution.
Affected Systems and Versions
The following devices and versions are affected:
- D6100 before 1.0.0.63
- R7800 before 1.0.2.52
- R8900 before 1.0.4.2
- R9000 before 1.0.4.2
- WNDR3700v4 before 1.0.2.102
- WNDR4300v1 before 1.0.2.104
- WNDR4300v2 before 1.0.0.58
- WNDR4500v3 before 1.0.0.58
- WNR2000v5 before 1.0.0.68
- XR500 before 2.3.2.32
Exploitation Mechanism
The vulnerability can be exploited by authenticated users injecting malicious commands into the affected NETGEAR devices, potentially compromising their security.
Mitigation and Prevention
Protecting your systems from CVE-2019-20727 is crucial to maintaining security.
Immediate Steps to Take
- Update affected devices to the latest firmware versions provided by NETGEAR.
- Monitor network traffic for any suspicious activity.
- Restrict access to vulnerable devices to authorized personnel only.
Long-Term Security Practices
- Regularly update firmware and security patches on all network devices.
- Implement strong authentication mechanisms and access controls.
- Conduct regular security audits and penetration testing to identify vulnerabilities.
Patching and Updates
Ensure that all affected NETGEAR devices are promptly updated with the latest firmware releases to mitigate the command injection vulnerability.