CVE-2019-1895 Cisco Enterprise NFV Infrastructure Software VNC Authentication Bypass Vulnerability

Critical 9.8 Published 7 Aug 2019 Updated 19 Nov 2024

Unauthenticated attackers can hijack VNC sessions to gain administrative access to Cisco NFVIS devices.

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-2019-1895?

CVE-2019-1895 is a critical authentication bypass vulnerability in Cisco Enterprise NFV Infrastructure Software, published on 7 Aug 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Virtual Network Computing (VNC) console implementation of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to access the VNC console session of an administrative user on an affected device. The vulnerability is due to an insufficient authentication mechanism used to establish a VNC session. An attacker could exploit this vulnerability by intercepting an administrator VNC session request prior to login. A successful exploit could allow the attacker to watch the administrator console session or interact with it, allowing admin access to the affected device.

Weakness: CWE-306

Which versions are affected by CVE-2019-1895?

It affects 1 product.

Products include Cisco Enterprise Nfv Infrastructure Software.

How do I fix CVE-2019-1895?

No fix has been published for CVE-2019-1895 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-2019-1895 being exploited?

There is no known exploitation of CVE-2019-1895 in the wild and no public exploit code.

Sources

Also known as GHSA-4wqg-2gvp-c2c4.