Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Partner Perspectives //

bitdefender

2/23/2017
09:00 AM
Liviu Arsene
Liviu Arsene
Partner Perspectives
Connect Directly
Twitter
Google+
LinkedIn
RSS
50%
50%

How to Secure Hyperconverged Infrastructures & Why It Is Different

The next-generation datacenter requires new security practices, but that doesn't mean everything we learned about datacenter security becomes obsolete.

Securing traditional datacenters used to be all about installing perimeter defenses, such as firewalls, to keep threats away from internal networks. While that was enough a decade ago, today’s next-generation datacenters are prone to advanced attacks from malware and hackers aiming to infiltrate and remain undetected for as long as possible.

Network segmentation using firewalls to protect data and users from cross-contamination can be extremely complicated in large infrastructures and environments. Any form of micro-segmentation increases in complexity as more endpoints are added to a network. Plus, this would require hardware that is not application-aware, and eventually create bottlenecks and performance problems as the network becomes more complicated.

Hyperconverged infrastructures (HCI) that describe software defined datacenters (SDDC) cannot rely on legacy security methods. They need a security model that’s just as flexible as the infrastructure it’s built on. The difference in securing traditional multi-dimensional infrastructures versus converged architectures is that the latter needs a more policy-based approach, intertwining security with applications. Instead of applying a network-based security model, hyperconverged infrastructures require application-based security policies that allow computing instances to communicate with each other, across network segments.

Application-based policies in hyperconverged infrastructures can help reduce complexity and allow security to focus on workloads instead of managing ports, virtual networks and access control lists. Individual computing instances, such as servers, users and workloads, can have security policies that describe their behavior throughout their entire lifecycle. With homogenous software configured for networking, storage and computing running equally across an entire cluster, it’s vital to always know your system’s state and configure alerts for when it changes.

Using more than one hyperconverged vendor helps reduce zero-day exploitation risks that could leave the entire infrastructure vulnerable. Limiting access to control planes for the entire hyperconverged infrastructure is also mandatory, as it helps deny attackers full access to all HCI clusters.

The next-generation datacenter requires new security practices, but that doesn’t mean everything we learned about datacenter security becomes obsolete. Firewalls are still great for securing a datacenter’s network perimeter and network segregation is still recommended. However, these new hyperconverged infrastructures require much more than that, as reducing systems to a single dimension comes with security challenges that need to be addressed.

Liviu Arsene is a senior e-threat analyst for Bitdefender, with a strong background in security and technology. Reporting on global trends and developments in computer security, he writes about malware outbreaks and security incidents while coordinating with technical and ... View Full Bio
Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Data Privacy Protections for the Most Vulnerable -- Children
Dimitri Sirota, Founder & CEO of BigID,  10/17/2019
Sodinokibi Ransomware: Where Attackers' Money Goes
Kelly Sheridan, Staff Editor, Dark Reading,  10/15/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
7 Threats & Disruptive Forces Changing the Face of Cybersecurity
This Dark Reading Tech Digest gives an in-depth look at the biggest emerging threats and disruptive forces that are changing the face of cybersecurity today.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-18217
PUBLISHED: 2019-10-21
ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.
CVE-2019-16862
PUBLISHED: 2019-10-21
Reflected XSS in interface/forms/eye_mag/view.php in OpenEMR 5.x before 5.0.2.1 allows a remote attacker to execute arbitrary code in the context of a user's session via the pid parameter.
CVE-2019-17409
PUBLISHED: 2019-10-21
Reflected XSS exists in interface/forms/eye_mag/view.php in OpenEMR 5.x before 5.0.2.1 ia the id parameter.
CVE-2019-10715
PUBLISHED: 2019-10-21
There is Stored XSS in Verodin Director before 3.5.4.0 via input fields of certain tooltips, and on the Tags, Sequences, and Actors pages.
CVE-2019-10716
PUBLISHED: 2019-10-21
An Information Disclosure issue in Verodin Director 3.5.3.1 and earlier reveals usernames and passwords of integrated security technologies via a /integrations.json JSON REST API request.