Virtual air gap support for VPN [closed]
Do any of the popular open source VPN implementations support virtual air-gapping (masking content against sniffing timing / packet sizes)?
Category Archives: air gap
How exploitable is a machine with a vulnerable library if it is not open to the internet?
Say I have a vulnerable library on a test machine, is it possible for an attacker to use that vulnerability to exploit the system and maybe the network, if the machine is not open to the internet?
Take Security Up a Notch By Adding LEDs
All computers are vulnerable to attacks by viruses or black hats, but there are lots of steps that can be taken to reduce risk. At the extreme end of the spectrum is having an “air-gapped” computer that doesn’t connect to a network at all, but this isn’t a guarantee that …read more
Patch management for production servers
I’m trying to implement an automated patching program at a small SaaS provider.
When a customer signs up for our software, we provision them a Linux VM in our primary datacenter.
Each customer also gets a QA and sandbox se… Continue reading Patch management for production servers
Non-upgradable usb device against badUSB
Lot of posts about badUSB (here and there) suggest to use a PS/2 connector for mouse and keyboard or to whitelisted USB devices or even use a hardware firewall that only allows whitelisted commands.
The purpose is to protect the usb devic… Continue reading Non-upgradable usb device against badUSB
Eliminating possible watermarking done by text editors
On which text editor is it easiest to prevent and/or eliminate watermarking?
Pre-installed malware that defeats anonymity being used on an airgapped system can be made ineffective, at least partially, by making sure the devi… Continue reading Eliminating possible watermarking done by text editors
To Air-Gap or Not Air-Gap Industrial Control Networks
What is air-gapping, and why do we air-gap networks? What camp are you in? In the camp that believes in air-gaps, or the other set that says they truly do not exist? Air-gap networks are networks that are physically and logically isolated from other ne… Continue reading To Air-Gap or Not Air-Gap Industrial Control Networks
Send and receive files in an air-gapped system
Is it possible to have an air-gapped system which can send and receive files?
From a high level perspective, I can’t seem to figure out how this can work and I am starting to think it is impossible. But before I give up, I … Continue reading Send and receive files in an air-gapped system
Possible to control desktop data activity LED on Windows or Linux for data extraction?
I am trying to extract data from an air-gapped computer as a project.
I already have a working prototype using high frequency sound and a key-logger.
I would like to find another way to do it without much effort.
I have alre… Continue reading Possible to control desktop data activity LED on Windows or Linux for data extraction?
What comes after air gaps? DARPA asks world for ideas
According to DARPA, air gapping computers and data is a security idea that has run its course and urgently needs to be replaced. Continue reading What comes after air gaps? DARPA asks world for ideas