CVE-2020-3478 : Security Advisory and Response

A vulnerability in the REST API of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to overwrite certain files on an affected device. This CVE was published on September 2, 2020.

Understanding CVE-2020-3478

This CVE pertains to a file overwrite vulnerability in Cisco Enterprise NFV Infrastructure Software (NFVIS).

What is CVE-2020-3478?

The vulnerability in the REST API of Cisco NFVIS allows an attacker to upload files, potentially compromising the affected system's functionality.

The Impact of CVE-2020-3478

The vulnerability has a CVSS base score of 8.1 (High severity) with a high impact on availability and integrity of the system.

Technical Details of CVE-2020-3478

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw in the REST API of Cisco NFVIS results from insufficient authorization enforcement, enabling attackers to overwrite restricted files.

Affected Systems and Versions

Product: Cisco Enterprise NFV Infrastructure Software
Vendor: Cisco
Affected Version: Not Applicable (n/a)

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading files through the REST API, potentially causing system degradation.

Mitigation and Prevention

Protecting systems from CVE-2020-3478 is crucial to maintaining security.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Monitor network traffic for any suspicious activities.
Restrict access to the REST API to authorized personnel only.

Long-Term Security Practices

Regularly update and patch software to address vulnerabilities.
Conduct security training for staff to enhance awareness of potential threats.

Patching and Updates

Ensure that the latest patches and updates from Cisco are applied to mitigate the vulnerability effectively.