Securing the Virtual Environment: How to Defend the by Davi Ottenheimer, Matthew Wallace
By Davi Ottenheimer, Matthew Wallace
A step by step advisor to settling on and protecting opposed to assaults at the digital environment
As an increasing number of facts is moved into digital environments the necessity to safe them turns into more and more vital. helpful for provider companies in addition to firm and small enterprise IT pros the booklet bargains a extensive glance throughout virtualization utilized in numerous industries in addition to a slender view of vulnerabilities distinctive to digital environments. A spouse DVD is incorporated with recipes and checking out scripts.
• Examines the variation in a digital version as opposed to conventional computing types and the suitable know-how and tactics to protect it from attack
• Dissects and exposes assaults designated on the digital surroundings and the stairs worthwhile for defense
• Covers info safety in digital environments: construction a digital assault lab, discovering leaks, getting a side-channel, denying or compromising prone, abusing the hypervisor, forcing an interception, and spreading infestations
• Accompanying DVD comprises hands-on examples and code
• This how-to consultant hands IT managers, proprietors, and designers of digital environments with the instruments they should defend opposed to universal threats.
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Additional info for Securing the Virtual Environment: How to Defend the Enterprise Against Attack
This creates unnecessary risk, because it allows a password leak in one component to become a password leak for all components. Similarly, you might be tempted to have many users access systems using a “role” account. Rather than having John Doe log in using a jdoe account that has administrative privileges, organizations may fall prey to the temptation of using Administrator and root logins. This makes it impossible to trace actions to speciﬁc individuals. indd 24 4/10/2012 3:46:19 PM Ottenheimer c01 V2 - 03/10/2012 Chapter 1 n Virtualized Environment Attacks 25 There are other instances where URLs can be guessable, which leads to unexpected consequences.
Many servers run a hypervisor. Their pooled resources can then be sliced up and allocated to virtual machines. The wave of optimization that drove that consolidation in enterprises is now crashing against the shore of the Internet datacenter. The traditional dedicated server model is under siege from cloud services. 2 This book deals with both virtualization and cloud computing. What separates virtual computing and the infrastructure cloud? indd 2 n Self-service capability n Multitenancy, meaning that multiple organizations can manage their own access to the services n Greater scalability and elasticity n Measured or metered usage (you pay for what you use) n Consumable “as a service,” which generally means accessible over a network 4/10/2012 3:46:17 PM Ottenheimer c01 V2 - 03/10/2012 Chapter 1 n Virtualized Environment Attacks 3 The cloud also inherits the characteristics of virtualization, such as hardware independence.
Consider the simplest use case of a single-blade virtualized environment. Trafﬁc need never leave the physical blade, and yet there may be broadcast domains, concerns about promiscuous virtual NICs, and routing issues, all in the virtual sandbox. You can employ techniques to observe trafﬁc in a manner similar to physical environments. For example, you can attach a virtual machine to a VMware dvSwitch (distributed virtual switch) in promiscuous mode by overriding the default settings and setting it to VLAN 4095.