CVE-2020-3531 Cisco IoT Field Network Director Unauthenticated REST API Vulnerability

Critical 9.8 Published 18 Nov 2020 Updated 13 Nov 2024

Unauthenticated attackers can access the back-end database of Cisco IoT Field Network Director to read, alter, or drop information via REST API.

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

What is CVE-2020-3531?

CVE-2020-3531 is a critical missing authorization vulnerability in Cisco IoT Field Network Director (IoT-FND), published on 18 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the REST API of Cisco IoT Field Network Director (FND) could allow an unauthenticated, remote attacker to access the back-end database of an affected system. The vulnerability exists because the affected software does not properly authenticate REST API calls. An attacker could exploit this vulnerability by obtaining a cross-site request forgery (CSRF) token and then using the token with REST API requests. A successful exploit could allow the attacker to access the back-end database of the affected device and read, alter, or drop information.

Weakness: CWE-306

Which versions are affected by CVE-2020-3531?

It affects 1 product.

Products include Cisco Iot Field Network Director.

How do I fix CVE-2020-3531?

No fix has been published for CVE-2020-3531 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-2020-3531 being exploited?

There is no known exploitation of CVE-2020-3531 in the wild and no public exploit code.

Sources

Also known as GHSA-fg87-2627-3rxj.