CVE-2018-21117 : Vulnerability Insights and Analysis

The NETGEAR XR500 devices, prior to version 2.3.2.32, are vulnerable to remote code execution by unauthenticated attackers through the traceroute handler.

Understanding CVE-2018-21117

The vulnerability in NETGEAR XR500 devices poses a high risk due to remote code execution without authentication.

What is CVE-2018-21117?

The CVE-2018-21117 vulnerability allows attackers to execute code remotely without needing to authenticate, exploiting the traceroute handler.

The Impact of CVE-2018-21117

CVSS Base Score: 8.8 (High)
Attack Vector: Adjacent Network
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2018-21117

The technical details shed light on the specifics of the vulnerability.

Vulnerability Description

The vulnerability in NETGEAR XR500 devices allows unauthenticated attackers to execute code remotely through the traceroute handler.

Affected Systems and Versions

Affected Product: NETGEAR XR500
Vulnerable Versions: Before 2.3.2.32

Exploitation Mechanism

The vulnerability can be exploited remotely by attackers without the need for authentication, leveraging the traceroute handler.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks posed by CVE-2018-21117.

Immediate Steps to Take

Update NETGEAR XR500 devices to version 2.3.2.32 or later.
Monitor network traffic for any suspicious activity.
Implement strong firewall rules to restrict unauthorized access.

Long-Term Security Practices

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

Patching and Updates

Apply patches and updates provided by NETGEAR to address the CVE-2018-21117 vulnerability.