CVE-2021-1600 Cisco Intersight Virtual Appliance IPv4 and IPv6 Forwarding Vulnerabilities

High 8.3 Published 22 Jul 2021 Updated 7 Nov 2024

Unauthenticated adjacent attackers can access sensitive internal services and modify configurations on Cisco Intersight Virtual Appliance due to insufficient packet restrictions.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1600?

CVE-2021-1600 is a high-severity missing authorization vulnerability in Cisco Intersight Virtual Appliance, published on 22 Jul 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Multiple vulnerabilities in Cisco Intersight Virtual Appliance could allow an unauthenticated, adjacent attacker to access sensitive internal services from an external interface. These vulnerabilities are due to insufficient restrictions for IPv4 or IPv6 packets that are received on the external management interface. An attacker could exploit these vulnerabilities by sending specific traffic to this interface on an affected device. A successful exploit could allow the attacker to access sensitive internal services and make configuration changes on the affected device.

Weakness: CWE-284

Which versions are affected by CVE-2021-1600?

It affects 1 product.

Products include Cisco Intersight Virtual Appliance.

How do I fix CVE-2021-1600?

No fix has been published for CVE-2021-1600 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-2021-1600 being exploited?

There is no known exploitation of CVE-2021-1600 in the wild and no public exploit code.

Sources

Also known as GHSA-34g6-xv7x-r7fm.