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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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 ...
0
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1answer
24 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 ...
0
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0answers
28 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
37 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 ...
3
votes
1answer
74 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 ...
1
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1answer
39 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. ...
0
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1answer
51 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 ...
2
votes
1answer
333 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 ...
5
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3answers
364 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 ...
7
votes
1answer
86 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 ...
3
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2answers
112 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 ...
1
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2answers
84 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 ...
2
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3answers
561 views

Can I use 777 file permissions inside server virtualisation (that only I have access to) without worry?

For this question, please assume I have followed every possible security measure to secure my Linux server. Only I have access to the web server via one open SSH port. If there are security issues ...
2
votes
1answer
107 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 ...
0
votes
1answer
59 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 ...
1
vote
0answers
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. ...
0
votes
1answer
43 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 ...
1
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2answers
130 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 ...
1
vote
1answer
523 views

How to configure Suricata to not interfere with virtual machine [closed]

I'm currently planning on setting up Suricata as a firewall on my laptop. I'm wondering however if it's possible to set Suricata to not interfere with traffic to and from specific virtual machines ...
0
votes
2answers
76 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. ...
1
vote
0answers
72 views

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 ...
1
vote
1answer
97 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: ...
0
votes
1answer
137 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 ...
0
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2answers
118 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). ...
6
votes
2answers
1k views

Is BitLocker on a virtual machine still FIPS 140-2 compliant?

BitLocker can be used as a cryptographic module to fulfill FIPS 140-2 security level 1 compliance. In a common setup, USB thumb drives can be used to unlock drives encrypted by BitLocker on startup. ...
79
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7answers
47k views

How secure are virtual machines really? False sense of security?

I was reading this CompTIA Security+ SYO-201 book, and the author David Prowse claims that: Whichever VM you select, the VM cannot cross the software boundaries set in place. For example, a ...
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1answer
63 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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0answers
58 views

What are the steps to securing encryption keys/databases on an unsecured DAAS provider?

Most Desktop As A Service providers store their virtual hard drives and the VMs RAM in a way that allows them to access their contents. Choosing a provider who offers a 'no-knowledge of server' ...
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0answers
95 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 ...
2
votes
2answers
91 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 ...
0
votes
3answers
121 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 ...
0
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2answers
64 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)?
7
votes
1answer
272 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 ...
0
votes
1answer
72 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 ...
0
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0answers
122 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 ...
10
votes
4answers
897 views

Source code security

We have about 20 developers working in a heterogeneous environment, mostly using company laptops or desktops. We run Windows 7 on desktops/laptops and a mixture of Linux distros (Ubuntu/CentOS). ...
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2answers
84 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?
28
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4answers
15k views

Does a Virtual Machine stop malware from doing harm?

I would like to know if it is save for the host system of a virtual machine (VM - VirtualBox OSE in my case) to execute malware. Can a virus break out and read or write data from the host system? ...
5
votes
4answers
794 views

In this case, does Virtualization gives more security?

A: running an OpenBSD machine with a httpd and a smtp server? vs. B: running an OpenBSD machine as virtualization host with QEMU having two guest OpenBSD system: one for smtp and one for httpd. ...
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0answers
90 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 ...
0
votes
1answer
91 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
votes
1answer
62 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 ...
2
votes
1answer
42 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 ...
1
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0answers
55 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 ...
0
votes
1answer
520 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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votes
2answers
108 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 ...
0
votes
1answer
89 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 ...
2
votes
2answers
262 views

Does a VM keylogger listen to the keyboard activities of the host?

I am running a Windows XP virtual machine on a Windows XP host machine. I use the VM for suspicious websites and software/applications. In the case a kaylogger will be installed on my VM: will this ...
3
votes
3answers
4k 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 ...
0
votes
1answer
87 views

How secure is user-mode Linux, in terms of protecting the host system?

Two questions about User-Mode Linux: Suppose that a privilege escalation attack is used to gain root in a UML guest. Assuming modern (3.0 or later) host and guest kernels, is it trivial to escape ...