CVE-2020-3222 Cisco IOS XE Software Web UI Unauthenticated Proxy Service Vulnerability

Medium 4.3 Published 3 Jun 2020 Updated 15 Nov 2024

Unauthenticated adjacent attackers can bypass access controls via a web UI proxy service in Cisco IOS XE.

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-2020-3222?

CVE-2020-3222 is a medium-severity authentication bypass vulnerability in Cisco Ios Xe, published on 3 Jun 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the web-based user interface (web UI) of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to bypass access control restrictions on an affected device. The vulnerability is due to the presence of a proxy service at a specific endpoint of the web UI. An attacker could exploit this vulnerability by connecting to the proxy service. An exploit could allow the attacker to bypass access restrictions on the network by proxying their access request through the management network of the affected device. As the proxy is reached over the management virtual routing and forwarding (VRF), this could reduce the effectiveness of the bypass.

Weakness: CWE-17

Which versions are affected by CVE-2020-3222?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2020-3222?

No fix has been published for CVE-2020-3222 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2020-3222 being exploited?

There is no known exploitation of CVE-2020-3222 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-gh79-qhp7-4p5x.