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Everything You Need to Know About DNS AttacksIt's important to understand DNS, potential attacks against it, and the tools and techniques required to defend DNS infrastructure. This report answers all the questions you were afraid to ask.
Domain Name Service (DNS) is a critical part of any organization's digital infrastructure, but it's also one of the least understood. DNS is designed to be invisible to business professionals, IT stakeholders, and many security professionals, but DNS's threat surface is large and widely targeted.
Attackers are causing a great deal of damage with an array of attacks such as denial of service, DNS cache poisoning, DNS hijackin, DNS tunneling, and DNS dangling. They are using DNS infrastructure to take control of inbound and outbound communications and preventing users from accessing the applications they are looking for. To stop attacks on DNS, security teams need to shore up the organization's security hygiene around DNS infrastructure, implement controls such as DNSSEC, and monitor DNS traffic
Incident Readiness and Building Response Playbook
In this special report, learn the Xs and Os of any good security incident readiness and response playbook.
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User Rank: Ninja
7/27/2019 | 3:48:13 PM
And the other aspect of the network should have been on IPv6. If the internal SCADA network is on IPv6 and the external network is on IPv4 (admin or mgmt network), we can limit the ability of the hacker to access the VDI environment. Since the VDI is limited with IPv6 (dual-homed) with specific IPv6 addresses on the Mgmt Network, access to the SCADA environment can provide limited accessibility when it comes to external actors. This heightened level of security makes this area an internal "jump area" or quasi-DMZ. This helps to improve security levels by reducing MITM (Man in the Middle Attacks) enabling encryption (in-flight & at rest). IPv6 IPSec AES256 ESP/AH VPN can reduce the level of attacks 10 fold as long as it is configured properly with hours of testing. Remember, if you look at most of the hack attempts that took place in the world, they use IPv4 (not to say that they don't use IPv6), this would give the organization a leg up on addressing this issue and it adds a certain level of complexity or obfuscation to the mix.
Another consideration would be to stand up a test environment with hardened OSes, this practice could affect the application especially when PLC devices are involved; having a test environment that mimics production is vital to the organization's security posture.
Hopefully, they will be working with security vendors to address some of their issues.
Todd