CVE-2019-1895 : What You Need to Know

A vulnerability in the Virtual Network Computing (VNC) console implementation of Cisco Enterprise NFV Infrastructure Software (NFVIS) allows a remote attacker to gain unauthorized access to an administrative user's VNC console session.

Understanding CVE-2019-1895

This CVE involves an authentication bypass vulnerability in Cisco Enterprise NFV Infrastructure Software.

What is CVE-2019-1895?

The flaw in the VNC console implementation of Cisco NFVIS enables a remote attacker to access an administrative user's VNC console session without authentication.

The Impact of CVE-2019-1895

If exploited, the attacker can observe or interact with the administrator console session, potentially gaining administrative control over the affected device.

Technical Details of CVE-2019-1895

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from an inadequate authentication mechanism used to set up a VNC session in Cisco NFVIS.

Affected Systems and Versions

Product: Cisco Enterprise NFV Infrastructure Software
Vendor: Cisco
Versions Affected: < 3.12.1

Exploitation Mechanism

Exploiting this flaw involves intercepting a VNC session request from an administrator before logging in.

Mitigation and Prevention

To address CVE-2019-1895, follow these mitigation steps:

Immediate Steps to Take

Apply the necessary security patches provided by Cisco.
Monitor network traffic for any suspicious activity.
Restrict network access to the VNC console.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Implement strong network segmentation and access controls.
Conduct regular security audits and assessments.

Patching and Updates

Ensure that you promptly apply all security patches and updates released by Cisco to mitigate the vulnerability.