CVE-2021-1601 Explained : Impact and Mitigation

Cisco Intersight Virtual Appliance is impacted by multiple vulnerabilities that could allow unauthorized access to sensitive internal services from an external interface. These vulnerabilities stem from insufficient restrictions for IPv4 or IPv6 packets on the external management interface.

Understanding CVE-2021-1601

This CVE refers to security flaws in Cisco Intersight Virtual Appliance that could be exploited by attackers to access critical internal services.

What is CVE-2021-1601?

The vulnerabilities in Cisco Intersight Virtual Appliance enable an unauthenticated attacker to breach internal services from an external interface by leveraging specific network traffic.

The Impact of CVE-2021-1601

A successful exploitation of these vulnerabilities could result in unauthorized access to sensitive internal services and unauthorized configuration changes on the affected device.

Technical Details of CVE-2021-1601

The vulnerability is classified with a high CVSS base score of 8.3, indicating a severe impact on integrity and availability.

Vulnerability Description

The flaws permit an adjacent attacker to infiltrate internal services through the external management interface due to insufficient packet restrictions for IPv4 or IPv6 traffic.

Affected Systems and Versions

Cisco Intersight Virtual Appliance is affected by these vulnerabilities across all versions.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specific network traffic to the external management interface of the affected device.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2021-1601 and implement long-term security measures.

Immediate Steps to Take

Implement network segmentation, restrict access to the external interface, and monitor for any unauthorized activities.

Long-Term Security Practices

Regularly update and patch the Cisco Intersight Virtual Appliance, conduct security audits, and enhance network monitoring.