Questions tagged [cold-boot-attack]

An active or semi-active side-channel attack that involves turning off or resetting the device forcibly, then reading the contents of its memory before it decays or changes substantially.

Filter by
Sorted by
Tagged with
0 votes
1 answer
115 views

What type of attacks can be carried against an OS with FDE, if we assume OS and FDE are implemented correctly?

The question is mainly stated in the title. I was wondering what kind of attacks can be launched on such a setup, where someone has access to a running OS with locked screen (needs password for the ...
tur11ng's user avatar
  • 101
1 vote
0 answers
163 views

Cold boot attack on NAS

I'm familiar with the concept of cold boot attacks on laptop and desktop computers, where the goal is to find hidden encryption keys in the memory. I also think it's done on certain mobile phones. I ...
laddmeister's user avatar
1 vote
1 answer
1k views

Is a cold-boot-attack on a bitlocker key in TPM still possible, if I use the TPM with a different drive in the meantime?

I have a laptop with the system disk encrypted by Bitlocker. Bitlocker is configured to require a pre-boot pin, and unlocks by TPM. The recovery key is required to unlock and is not available atm. The ...
Thies's user avatar
  • 11
-1 votes
1 answer
256 views

Booting from removeable media, evil maid, and others? [closed]

I am having a problem understanding some security techniques and was hoping someone could clarify some things. For instance, in terms of an evil maid attack, what are some solutions to preventing ...
Rideboards's user avatar
0 votes
1 answer
154 views

RAM as a attack target

What is the simplest or most common method to read a value, for example a text, from the RAM of a personal computer? What access requirements are necessary for this? Is a search in a hex dump always ...
BeloumiX's user avatar
  • 256
8 votes
5 answers
4k views

Way to protect from cold boot attack

After reading some research papers about cold boot attack, I got a big shock and start searching for ways to protect against that kind of vulnerability. I got one solution that is using BitLocker pin ...
Crypt0er's user avatar
  • 101
47 votes
9 answers
10k views

How to prevent a hosting company from accessing a VM's encryption keys?

I want to prevent potential theft of my web application (source code + database) by my local hosting company, that I don't fully trust for some reason (but have no other choice but to use as they give,...
BenMorel's user avatar
  • 909
0 votes
0 answers
125 views

Non-obvious Mitigations for This DMA-Attack Demonstrated by F-Secure

Are there any non-obvious mitigations for the big DMA-attack revealed last year and demonstrated in this video by F-Secure? We know that Microsoft has published some material pertaining to DMA-...
Daniel's user avatar
  • 151
0 votes
1 answer
109 views

Interpreting this F-Secure Video of a DMA-Attack

I'm trying to interpret this video demonstration by F-Secure of the big cold-boot attack discovered last year. What is happening at the 50-second mark? Why does he insert the USB boot-device before ...
Daniel's user avatar
  • 151
2 votes
2 answers
395 views

Is setting a firmware password on a Macbook enough to prevent cold boot attacks?

I have a Macbook configured with a firmware password required to boot from any media other than the built-in NVMe drive. In theory, this means without my password you can't boot from removable media. ...
user avatar
3 votes
1 answer
778 views

Cold-boot attack example in the real world

I wrote a paper with a countermeasure for a cold-boot attack and am currently in rebuttal process. One reviewer struggles with the motivation behind cold-boot attacks. Specifically, he asks if there ...
seol's user avatar
  • 31
1 vote
1 answer
283 views

How Secure is Storing Cryptographic Information into the CPU Register instead of RAM

I read about Tresor / TreVisor / Armored. How Secure is Storing Cryptographic Information into the CPU Debug-Register over storing it into the RAM? And why is it currently not much used? I know ...
Serverfrog's user avatar
8 votes
2 answers
2k views

Is tails os susceptible to a cold boot attack?

I've looked at the documentation and it mentions that upon shutdown the data residing in the ram is overwritten, however it doesn't go into any detail on how it does this. Documentation link: https://...
Dane's user avatar
  • 243
10 votes
2 answers
3k views

Methods of cold boot attacks in the wild

As far as I know, there are two methods for performing cold boot attacks: Reboot the system into an alternate operating system or BIOS with a minimal memory footprint which automatically exports ...
forest's user avatar
  • 66.7k
5 votes
1 answer
619 views

Why isn't there a FROST-like cold boot exploit for iOS?

I know there's a cold boot attack for Android called FROST (Forensic Recovery Of Scrambled Phones). But there doesn't seem to be one for iOs. Why is this? Is it because iOS is inherently more ...
Zen Hacker's user avatar
9 votes
1 answer
529 views

How long would a computer have to be off to be resistant to a cold boot attack?

I understand that the longer a computer is off, the more resistant it is to a cold boot attack. I also understand that an AES key can be reconstructed from a redundant round key schedule even after a ...
Zen Hacker's user avatar
2 votes
1 answer
554 views

Possible security risk with disk encryption key getting swapped to the hard drive

I've recently read about the cold boot method, where it's possible to obtain the key for an encrypted filesystem from DRAM. This can be done even after the computer is turned off, but it requires ...
Zen Hacker's user avatar
5 votes
1 answer
2k views

LUKS TPM disk encryption attacks

Is it possible, or are there any known attacks, to get the encryption key for disk encryption tpm-luks? (Linux LUKS using encryption key stored in TPM) I know that there are attacks like cold boot ...
user1563721's user avatar
  • 1,119
9 votes
1 answer
3k views

Are encryption keys wiped from RAM before hibernate, or how to do it (Luks and Truecrypt)

Using Linux, I have system and swap/hibernation partitions encrypted with LUKS, and data partitions encrypted with Truecrypt, and I am wondering when I put my laptop to hibernation if the encryption ...
cyril42e's user avatar
  • 191
2 votes
1 answer
486 views

Rasberry Pi with TRESOR immune to cold boot and DMA attacks?

I would like to set up a Rasberry Pi and connect a large USB Harddrive and some webcams to run motion for homesurveillance. If I am understanding everything correctly if I get Ubuntu mate to run with ...
Junior J. Garland's user avatar
4 votes
3 answers
1k views

Software defense against cold-boot attacks

Cold boot attacks are particularly nasty. On Android, a solution is to use a Nexus device with a locked bootloader to preven flashing a custom recovery. On a PC, your safeguards are even more limited....
Naftuli Kay's user avatar
  • 6,763
5 votes
3 answers
900 views

Are there volatile memory chips which dont retain data after power off?

It was demonstrated that dram modules can retain information up to 10 min after power off in certain conditions. My question - are there memory types which will retain data 10 sec at max even if being ...
Boppity Bop's user avatar