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
Threaded  |  Newest First  |  Oldest First
Why Cyber-Risk Is a C-Suite Issue
Marc Wilczek, Digital Strategist & CIO Advisor,  11/12/2019
DevSecOps: The Answer to the Cloud Security Skills Gap
Lamont Orange, Chief Information Security Officer at Netskope,  11/15/2019
Unreasonable Security Best Practices vs. Good Risk Management
Jack Freund, Director, Risk Science at RiskLens,  11/13/2019
Register for Dark Reading Newsletters
White Papers
Video
Cartoon Contest
Current Issue
Navigating the Deluge of Security Data
In this Tech Digest, Dark Reading shares the experiences of some top security practitioners as they navigate volumes of security data. We examine some examples of how enterprises can cull this data to find the clues they need.
Flash Poll
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2019-19012
PUBLISHED: 2019-11-17
An integer overflow in the search_in_range function in regexec.c in Oniguruma 6.x before 6.9.4_rc2 leads to an out-of-bounds read, in which the offset of this read is under the control of an attacker. (This only affects the 32-bit compiled version). Remote attackers can cause a denial-of-service or ...
CVE-2019-19022
PUBLISHED: 2019-11-17
iTerm2 through 3.3.6 has potentially insufficient documentation about the presence of search history in com.googlecode.iterm2.plist, which might allow remote attackers to obtain sensitive information, as demonstrated by searching for the NoSyncSearchHistory string in .plist files within public Git r...
CVE-2019-19035
PUBLISHED: 2019-11-17
jhead 3.03 is affected by: heap-based buffer over-read. The impact is: Denial of service. The component is: ReadJpegSections and process_SOFn in jpgfile.c. The attack vector is: Open a specially crafted JPEG file.
CVE-2019-19011
PUBLISHED: 2019-11-17
MiniUPnP ngiflib 0.4 has a NULL pointer dereference in GifIndexToTrueColor in ngiflib.c via a file that lacks a palette.
CVE-2019-19010
PUBLISHED: 2019-11-16
Eval injection in the Math plugin of Limnoria (before 2019.11.09) and Supybot (through 2018-05-09) allows remote unprivileged attackers to disclose information or possibly have unspecified other impact via the calc and icalc IRC commands.