Virtualization is the creation of a virtual (rather than actual) version of something, such as an operating system, a server, a storage device or network resources.

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Multiple Clients sharing a single firewall

I'm thinking about using a Virtual firewall for the connections between my two machines. This lead me to think what are the security implications of multiple clients using the same Virtual Appliance ...
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Firewall in virtual machine

I'm putting my server to use as a file server and a firewall. I'm looking at KVM or Xen VM setup where file server and firewall get their own VMs and host is just supplying the hardware (so Xen way, I ...
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When do shared disks “leak” data to other VMs, and how is that mitigated?

Inspired by this answer, I would like to know what are some common threats and mitigation techniques used to prevent one VM from leaking data to another via the shared storage infrastructure. ...
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24 views

How does a virtual machine escape work and how can it be prevented? [on hold]

Although a virtual machine escape is one the most dangerous security issues a virtual machine can be exposed to, there isnt much information about it on the internet IMO. My main questions are: How ...
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3answers
141 views

Completely encrypting virtual machine (for free) [closed]

I know in VMware workstation there's the option to encrypt a virtual machine. Is there a free way to do this without VMware workstation? I'm aiming for the fullest encryption and encapsulation ...
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1answer
508 views

Why is EC2 not vulnerable to VENOM?

I saw the advisory stating that EC2 instances are not vulnerable to VENOM. My understanding is that EC2 runs on Xen, and that VENOM affects XEN. Can anyone explain why EC2 is not vulnerable? Do ...
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1answer
25 views

Virtual Environments vs SELinux/AppArmor : Which is better for running unreliable applications?

By virtual environments, I mean Linux containers like Docker and Vagrant and not full blown VirtualBox. So, the issue is that I often have to install packages from untrusted sources in my Ubuntu. ...
2
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3answers
573 views

How secure is VirtualBox for privacy/anonymity? [closed]

Is it possible that Oracle places backdoors in VirtualBox that compromise a user's privacy/anonymity? For example, is running Whonix through VirtualBox a secure set up if your host OS is unencrypted? ...
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3answers
58 views

Isolate part of my PC to keep security for online purchases?

Soon I'll doing some purchases online using my mother's credit card. She's pretty sceptical about online shopping but I convinced her. She's not so sure about how secure it is and since I'm not so ...
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25 views

How can I convert a domain controller account to local account for forensic analysis? [migrated]

I am doing a forensic analysis of a Windows machine that has multiple local accounts but have a domain controller or active directory account. I can analyze the files of the user because the files are ...
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2answers
83 views

Is VM per service a reasonable server security model?

Let's say I am hosting several services on my server, for instance, email and a web page. I am concerned that the web server software may have unknown vulnerabilities in it, which will allow an ...
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1answer
30 views

Boot Attacks possible on encryption keys used in virtual machines

Is it possible for an attacker to restore passwords or encryption keys that one has used in a virtual machine the same way like restoring keys that have been used in a standard system applying a boot ...
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33 views

Is it possible to lock guest VMs (or processes) to sticks of physical RAM to prevent row hammer attacks?

I was wondering if it is possible through some means to isolate processes (or preferably guest VMs) to physical sticks of RAM. This would be to prevent row hammer like attacks from using physical ...
2
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1answer
49 views

VM production server and low entropy

I'm monitoring a VM functioning as our production server. I noticed it has at many times, quite low entropy (/proc/sys/kernel/random/entropy_avail). On average our server(which among other stuff does ...
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1answer
81 views

Can you securely allow users to create VM's on their workstations

I've moved from a job where developers were encouraged to use technologies like docker and vagrant to create VM's on their workstations for testing and development. At my new job, the IT manager ...
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1answer
45 views

Is it possible for guest system to spy host system when using virtual maschine (VMware) [duplicate]

I want to prepare virtual maschine which will be used to connect through vpn with one of my clients. There are some other programs and devices that I have to install in order all of this to work. ...
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1answer
76 views

Security issues for host system when running a home web server on a VM

I want to run a web server at home(really for the fun and learning of web/network and other security best practices), running a web app that i plan to write with ruby on rails and be able to access it ...
7
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1answer
101 views

Is it possible to emulate real network printer i.e. to run some actual firmware in VM?

I've got to the section related to network printers exploitation while going through one security course. Under "network printer" I understand standalone devices with a dedicated ethernet\wireless ...
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2answers
111 views

Setting up a security lab, looking for a little guidance [duplicate]

I'm new here. Over the past couple of years I've had a growing interest in the security aspects of IT/CS. Recently, I've started setting up a lab for myself based on a kali/win7 dualboot and I've ...
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2answers
134 views

What are ways I can analyze malware in an infected machine, not just clean it?

I often run into infected devices in my environment and would like to learn more about the specific infections that have gotten in. What are the best tools and techniques I could use to do this? I ...
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1answer
63 views

Infection through Virtual machine in NAT mode

I have a VM box configured using NAT to my host OS. It seems I can ping to the machines in my LAN. If my VM box got infected somehow my malware while surfing, would the malware be able to infect ...
2
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1answer
112 views

How to detect when your RAM is being copied or scanned by a hypervisor

I am working in a Virtual Machine that is on a ESXi server on a remote machine. I am not the only one who has access to the ESXi and others could take memory snapshots of my running VM. Is there a way ...
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2answers
157 views

intentionally vulnerable virtualbox or vmware appliances for practicing mobile pentest? [closed]

Is there any virtualbox or vmware appliances or anything like metasploitable that one can use to practice mobile pentest without the real hardware? I can find those for traditional ethernet but what ...
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2answers
567 views

Security of LXC compared to OpenVZ

For years, I'm now using OpenVZ on my server, but support discontinued for Debian and Ubuntu, current releases seem to focus on LXC now, which is not a bad idea from the point of comfort. But what ...
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78 views

Is it possible to run an encrypted java environment?

I've seen that virtual machines in virtualbox or VMware can be encrypted so that no one on the outside can access the disk, ram or CPU cache since the entire hardware is emulated and encrypted too. ...
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Is there any security risk with adding a **root's** public key to the local user's authorized_keys (so root to login as a user non-interactively?)

Background: I want to try unprivileged lxc containers a try on my small web server (hosting 2-4 users). Since the server is shared among friends, we decided to separate our services from the machine ...
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113 views

Why is nmap that slow on my system (ubuntu 14.04)?

I just started to learn something about portscanning with nmap. when i try to run an a nullscan or any other type on a virtual machine (win7 no firewall) the scan needs a lot of time to perform: ...
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1answer
151 views

Upgrade my Dell Inspiron laptop for PenTesting [closed]

I have a Dell Inspiron N5110 & wanna upgrade it to start practising pentesing with virtual machines. What do u suggest from specs below to upgrade (I have Kali Linux, Tails OS, XP, Metasploitable ...
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42 views

Snort only detect local issues [closed]

I have installed two physical machines with KVM virtualization using Red Hat as OS ( h1 and h2). In h1 I have installed the virtual machines w1 and db1 In h2 the virtual machines w2 , db1 and ids. ...
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113 views

Limit Packets Per Second

Since last week I have been seeing something fishy and it seems to be worsening. I tried many firewalls and they seem to be useless. I blocked all unwanted ports and only few ports are open so I found ...
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2answers
97 views

Can a virtual machine be used instead of the host?

I was thinking of using a Debian guest as my main 'host' instead of my actual host (Ubuntu). Do you think this will have any advantages in terms of making it difficult for digital forensics to ...
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2answers
69 views

Host an application on a virtualbox? [duplicate]

I want to host an application locally, but I was worried about security of my local files. I decided to 'encapsulate' the application using VirtualBox. Is that safe for my host OS (Windows)?
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75 views

How can a VPN use a virtual router and not send encrypt traffic and still be safe?

Today in networking class we were talking about VPNs. The prof got on topic of virtual routers and said that a way some VPNs work is by a client would purchase the service from the ISP and the ISP ...
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45 views

Are paravirtualized drivers a security risk?

Below is a copy of my answer that I gave in some other thread (Would running VMs inside of VMs be a more secure way to study viruses, etc?) about a topic of security of nested virtualization. I would ...
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1answer
279 views

Can virtual machines be used to isolate vulnerable software?

I have had a look at most of the previous questions about virtual machines (VMs) and they all appear to be focused on hosting malware in the VM and preventing it breaking out of the VM. What I can’t ...
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1answer
82 views

PCI Compliance - Antivirus in host and virtual environment?

We have a couple servers with a host system, and virtual DB and Web instances. Is it possible to be compliant with PCI if you install the Antivirus only on the host system, or does it need to be ...
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2answers
137 views

Is openVZ patched against all exploits for its current kernel version?

I am looking for a container vitalization software that will allow me to create containers that will house specific software/jobs/tasks which I can start stop at will (and bind to interface aliases). ...
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136 views

PCI-DSS: Recomendations for Mixed-Mode Virtual Environments

We are PCI-DSS 2.0 compliant. We have three internal networks: GENERAL (workstations, app file servers) workstations can RDP to the PCI servers in order to work on the cardholder data. MANAGEMENT ...
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88 views

How Secure are Virtual Networks [duplicate]

When using a Virtual Network, is it possible to infect the underlying Network infrastructure with malware from the Virtual Network. How safe is the use of Virtual Networks?
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394 views

CTF competitions/challenges that are Windows based?

I've been messing about in CTF's for a while and I also do pen-testing professionally, what i've noticed is a distinct lack of CTF competitions using windows environments. This is in stark contrast ...
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93 views

Are Hyper-V Memory Snapshots secure/encrypted?

When dealing with encryption tools (TrueCrypt, Bitlocker and any successors) the passwords are always somewhere in memory. Therefore when there are memory dumps on a hard disk, for example in the ...
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1answer
94 views

How would one go about setting up a system with security in mind? [closed]

I run a standard laptop at home (dual-boot Fedora 20 and Windows 7; the Windows side is almost never used). Soon my other computer will be working again; it will have Windows 8.1 and some flavor of ...
4
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1answer
65 views

Design differences of tails and whonix concerning virtualization

Tails and Whonix both can run in VirtualBox. Tails doesn't recommends it for security reasons (https://tails.boum.org/doc/advanced_topics/virtualization/index.en.html), for Whonix it seems to be a ...
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1answer
43 views

Virtualisation: security on the host side

Virtualised environments are focused on isolating the guest OS. Using the VirtualBox model, the guest might be behind a virtual NAT and/or talk only with other VMs via internal networks, and only ...
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57 views

What aspects of a Host OS can be detected from VirtualBox VM? [closed]

What aspects of a Host OS can be detected from VirtualBox VM? Processor and display features are all I can think of. What exactly about them? Any other features of the Host that a user with ...
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1answer
582 views

SFTP between guest virtual machine and its host

The System I am using Windows 7 host with Cygwin and a virtual machine running Linux. The actual running guest is an Arch Linux ISO. The Objective I want to share files between the Cygwin host and ...
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117 views

Untraceability of Virtual Machine [closed]

I'd like to know if it is possible to set a Virtual Machine as a protection against traceability. I would want my traffic to be impossible (or hard) to link to my current computer. I guess that the ...
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1answer
91 views

Plausible deniability regarding KeepassX files

I recently installed Guest Additions in my Windows 7 Virtual Machine because I could not stand working without widescreen and high resolution. I have read somewhere that this could be a possible ...
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3answers
5k views

Replacement for DVL (Damn Vulnerable Linux)?

I've recently spotted that DVL (Damn Vulnerable Linux) has gone inactive. My first question is what happened to cause them to stop releasing it? Secondly, I have found some references to other ...
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132 views

Testing Malware in one Virtual Machine which is running side by side along with other Virtual Machines

I want to harden the security of my host system and side by side running virtual machines while testing some files for malware in one of the virtual machines. Here comes a list of questions that I ...