CVE-2020-3478 Cisco Enterprise NFV Infrastructure Software File Overwrite Vulnerability

High 8.1 Published 4 Sep 2020 Updated 13 Nov 2024

An authenticated remote attacker can overwrite restricted files via the REST API due to insufficient authorization, potentially degrading system functionality.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2020-3478?

CVE-2020-3478 is a high-severity missing authorization vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 4 Sep 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the REST API of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an authenticated, remote attacker to overwrite certain files that should be restricted on an affected device. The vulnerability is due to insufficient authorization enforcement on an affected system. An attacker could exploit this vulnerability by uploading a file using the REST API. A successful exploit could allow an attacker to overwrite and upload files, which could degrade the functionality of the affected system.

Weakness: CWE-20

Which versions are affected by CVE-2020-3478?

It affects 1 product.

Products include Cisco Enterprise Nfv Infrastructure Software.

How do I fix CVE-2020-3478?

No fix has been published for CVE-2020-3478 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2020-3478 being exploited?

There is no known exploitation of CVE-2020-3478 in the wild and no public exploit code.

Sources

Also known as GHSA-pj8h-h42m-ghq2.