Questions tagged [security]
Questions related to security of data on the Raspberry Pi. Also includes questions on using it in a security system (e.g. as a firewall).
135
questions
1
vote
0answers
41 views
How can I build and install openssh server (sshd) with compiler security features
I noticed my raspberry pi's sshd does not seem to have PIE and ASLR enabled. I determined that using the answer here: https://unix.stackexchange.com/a/435038
I'm using Raspbian, is there another OS I ...
2
votes
1answer
33 views
How to securely share linux devices from client to another linux server
I have 3 I2C devices connected to my raspberry pi 3 i2c bus 1.
I want to share this whole I2C bus 1 (/dev/i2c-1) to another linux server, which is running in the cloud, through a secure TLS, username ...
0
votes
0answers
86 views
How can I create an encrypted container on a Raspberry Pi 4?
I'm looking for a tool similar to Veracrypt, Boxcryptor or Cryptomator which runs on the Raspberry Pi 4 (armv8). The above mentioned apps don't seem to support the arm architecture (or at least not v8)...
0
votes
0answers
102 views
Ensure Pi Connects Only to Trusted WiFi Network Via Certificate
This bleeds into Information Security Exchange, however I am posting it here:
Suppose I am extremely paranoid and want to ensure my Pis only connect to WiFi access points with a certificate signed by ...
0
votes
1answer
83 views
Can malware persist in the Pi outside of the OS/SD card?
Please let me know if this question is more appropriate for Security.
What kinds of damage can an attacker with physical access to a Pi cause?
In a desktop PC or laptop, an attacker with physical ...
0
votes
0answers
43 views
Logwatch problem
I'm trying to send logs to my email. I'm doing this via SSH.
I edited the file:
/usr/share/logwatch/default.conf/logwatch.conf
and edited these lines:
Output = mail
Format = html
Encode = none
...
1
vote
1answer
73 views
Bind sd card to a specific raspberry Pi
Is it possible to tie an SD card to a Raspberry Pi? I want it this way if you try the SD card in another Raspberry Pi that Linux does not start or that the SD card formats itself.
Furthermore, it ...
0
votes
1answer
41 views
Would it be possible to set up a security system like the one in jurassic park? [closed]
Would it be possible to set up a security system like the one in jurassic park (the book) using raspberry pi's? If so, how much time would it take, and how much would it cost? Using python as the ...
3
votes
1answer
344 views
Is the Raspberry Pi 4 vulnerable to the Spectre exploits?
Now the new Raspberry 4 has moved to ARM A72 cores, it's vulnerable to the spectre issues according to ARM.
Processor Variant 1 Variant 2 Variant 3 Variant 3a Variant 4
Cortex-A72 Yes Yes**...
0
votes
0answers
87 views
How do you set up Squid Proxy behind DHCP router?
I installed Squid on my RPi-3 for use behind a DHCP router. However, the pi will not route traffic back and forth between my computer because my router's DHCP settings. I don't want to give my router ...
1
vote
1answer
470 views
UFW Enabled, but not starting upon Pi reboot
I am running servers on several Pi's for VPN, OpenTTD, etc. I have installed ufw on all of them to try and keep them a little more secure. The server running the VPN is causing some issues as ufw ...
3
votes
1answer
326 views
Translation request for News re wpasupplicant during upgrade
During a routine upgrade (sudo apt-get upgrade), the following "news" appeared in my terminal window:
apt-listchanges: News
---------------------
wpasupplicant (2:2.6-19) unstable; urgency=medium
...
1
vote
1answer
58 views
Why is /boot/config.txt executable?
FYI, I installed the R-PI minimal image with dd myself onto an sd card
I was messing with the boot config when I realized that this file was set as executable. Looking at the config, I don't see why ...
0
votes
1answer
54 views
Raspbian Password Security
I'm building a Raspberry pi Raspbian server and wanted to know how secure the passwords are, as I intend to forward the port. Is it possible to SSH into a machine without the password?
Any input is ...
2
votes
1answer
708 views
What is the purpose of auto-login? Is it safe/secure?
Please excuse my ignorance. I have searched and I haven't found anything that addresses my question.
What is the purpose of auto-login and is it safe to enable?
I am using my Pi 3B to host a very ...
1
vote
1answer
36 views
Only allow a specific peripheral to be connected to a USB port
I am turning my raspberry pi prototype device into a market product. The data and the program running on the pi must be protected. But we have a USB webcam attached to it (provided by us, hence we ...
1
vote
1answer
59 views
Can the GPIO pins be used to compromise a raspberry pi?
For example, would a touchscreen device that uses the below pins on a Raspberry Pi 3 be able to do something more than say, send touch and keyboard events? Anything hackish/nefarious? (edit: use case: ...
1
vote
0answers
25 views
Using command (dd if=/dev/mmcblk0p1 | sha1sum) while running from initramfs [closed]
I have an opensource airgapped raspberry pi project seen at the following link:
www.privatekeyvault.com
I have provided a method for installing LUKS full disk encryption seen at the following:
https:/...
1
vote
2answers
478 views
wpa_supplicant.conf in raspberry pi 3
In order to have my raspberry pi access using ssh (on wifi) i
Created a wpa_supplicant.conf file with necessary details
Created an empty file 'ssh'
My question was around security. Is it secure to ...
1
vote
2answers
322 views
Can a Raspberry Pi be firmware updated? Inquiring from a security perspective
Can a Raspberry Pi be firmware updated?...I have a feeling from the suggested questions I'm being offered, the answer is yes.
I'm actually asking this from a security perspective, not because I ...
4
votes
1answer
1k views
Official “securing your pi” guide recommends blocking port 30 from 192.168.2.1 - why?
The official "securing your pi" guide from the Raspberry Pi foundation recommends installing the "uncomplicated firewall" (ufw) and adding a rule to deny access to port 30 from 192.168.2.1:
sudo ufw ...
1
vote
1answer
115 views
PiCamera Motion Error
I am using the Raspberry Pi 3 B+ w/ Raspbian Stretch.
I am currently unable to view the video stream on port 8080 or 8081.
When I start the command: motion -s "test" recipientemailhere
This is what ...
1
vote
0answers
133 views
Securing Raspberry Pi 3B+ Web Server with NAS [closed]
I have been researching about the security threats to a web server. It makes me want to secure my own on my Raspbian OS system. What are the list of things that are recommended or optional to install ...
1
vote
1answer
547 views
What encryption to choose for secure directory on USB Storage? [closed]
I need to choose encryption tool to secure my USB stored files, and I'm stuck with tools like VeraCrypt, ecryptfs or dm-crypt. The task is to encrypt folder or virtual disk that could be mounted as ...
3
votes
2answers
58 views
how to make sure that some code is working on a rpi?
Is it possible to use some (signing) service from the rpi itself that would allow us to make sure of 2 things?
Code is running on a raspberry
Code is running on a certain raspberry box and not ...
1
vote
1answer
242 views
Why is OP-TEE for Raspberry Pi3 insecure?
The OP-TEE on Raspberry Pi 3 webpage says,
This port of ARM Trusted Firmware and OP-TEE to Raspberry Pi3 IS NOT SECURE!
Although the Raspberry Pi3 processor provides ARM TrustZone exception
...
3
votes
1answer
2k views
Security of using Raspberry Pi for online banking
I would like to use Raspberry Pi 3 as a dedicated machine for online banking, but I am not sure if it can be made secure enough.
I think about using Raspberry Pi with raspbian. It would be connected ...
0
votes
1answer
112 views
Which Distro provides Timely Security Updates and have the longest support cycle for Raspberry Pi 1,2 & 3? [closed]
I am looking for a Linux Distro that provides timely security updates for all Raspberry Pi variants. Please indicate if the update life-cycle is released based (preferred) or rolling/continuous. ...
0
votes
1answer
2k views
Raspbian Stretch Strict chromium strict kiosk mode
I have setup raspberry pi to autostart chrome in kiosk mode when it boots up and open a locally hosted web application successfully. The web application will require keyboard and mouse for the user to ...
1
vote
1answer
955 views
Where is Raspberry Pi “Logout after inactivity” configuration
I recently downloaded and installed a standard Raspbian OS environment on my Pi. On my Ubuntu Laptop, "Logout after inactivity" is a standard setting, which I like a lot.
This is not active on my Pi, ...
6
votes
3answers
2k views
Disable ALL video outputs and USB Ports. Only remote access
I don't know if this is possible.
I'm hosting a web farm on raspberry pi (for fun).
And one of them is at friend's house. I can access the pi remotely using VNC.
How can i prevent my friend from ...
0
votes
1answer
2k views
Security implications of running my website on my raspberry pi [duplicate]
What are the security implications if I try to run my website from my home from a raspberry pi as a total noob?
Is it fine if I just follow one of the more common tutorials or should I better pay a ...
1
vote
1answer
681 views
Setting up a local server on raspberry pi, security concerns?
I would like to set up a local Apache server with PHP and MySQL on a raspberry pi for learning purposes.
To my understanding, the server is only accessible by devices connected to my home network.
...
58
votes
3answers
18k views
Is the Raspberry Pi vulnerable to the Spectre or Meltdown exploit?
There are two new serious security flaws discovered, Spectre and Meltdown.
Is the Raspberry Pi vulnerable for Spectre and/or Meltdown?
0
votes
2answers
119 views
I secured my raspberrypi, should I also secure apache?
I am pretty sure this may come across as a pretty dumb question but I will ask it anyways. I took some measures to secure my raspberrypi (for example creating a new user and deleting pi, changing the ...
5
votes
2answers
15k views
Entrusted Certificates installation
I have a very noob problem with my Raspberry Pi 3b (all updated to latest stable version available). I want to use it to automate some scripts I've written in R that run smoothly on my Win10 machine ...
1
vote
1answer
291 views
How to port knock RealVnc?
I have been having some trouble with port knocking my VNC, as when I nmap my rpi, the vnc ports are still open, here is my config file (excuse the lame sequence, I haven't fully set it up yet) :
[...
15
votes
4answers
10k views
Is the Raspberry Pi vulnerable to the KRACKs on WPA2 networks?
I have an updated RPI Zero W running Stretch.
The research is stating that wpa_supplicant is vulnerable on all Linux machines. According to Debian patches are rolled out:
For the oldstable ...
1
vote
1answer
872 views
Hashing password longer than 14 characters in wpa_supplicant.conf
My college has a WPA2 Enterprise network, which I can connect to on my Pi after adding the network in wpa_supplicant.conf.
I don't want my Wi-Fi password stored in plain text, so I use echo -n $...
0
votes
1answer
1k views
How to set up Wifi with EAP TTLS PAP + Proxy on Raspbian Jessie?
Sorry but I'm loosing my mind with the Wifi on Rapsbian Jessie.
Here is the thing : At work we have a secure Wifi connection. We had instructions to get connect via ANDROID terminals, as following :
...
0
votes
1answer
1k views
Deploy hybrid Intrusion detection on R-pi
I have R-pi 2 model B, can i deploy IDS (Snort/ Bro) on it? I am following this [1] methodology. Any thoughts to proceed with this. Also can I run any ML algo alongwith IDS? does my pi support all
[1]...
0
votes
3answers
587 views
Raspbian using outdated openssh
I have been setting up a simple server, and was worried about some security risks. I found that the Pi is running openssh 6.7, when the most up to date version is 7.5. Tenable Nessus says this leads ...
0
votes
0answers
102 views
Basic security for a kiosk? [duplicate]
I am very new to Raspberry Pi anything, and have just set up a kiosk. What do I need to know about security?
Our network (I'm a public librarian) has a firewall and the usual security, but is there ...
0
votes
1answer
598 views
Password Changes Not Persisting After Shutdown or Logoff
If I change the password of user pi (rpi 3b, NOOBS, Raspbian Jessie), it takes affect only until shutting down or logging off. After shutting down or logging off, the new password is no longer current....
0
votes
0answers
2k views
How to update Samba to the latest release branch
I configured a network share using the guidance found here:
http://raspberrypihq.com/how-to-share-a-folder-with-a-windows-computer-from-a-raspberry-pi/
But after everything was successfully ...
0
votes
1answer
320 views
How do I protect a port that I need to open for my VPN server?
I used the program pivpn to build my vpn server on a raspberry pi 3. When the build was completed, I forwarded the correct port in my router to my raspberry pi. Now I used one of the web programs on ...
11
votes
1answer
3k views
Self destruct: self erase all data on SD card using shred, dd or some other method
I will be using a Raspberry Pi as an air-gapped computer to make secure encrypted transactions on the Ethereum BlockChain.
Once in awhile I will want to update the software I am using which will ...
0
votes
2answers
2k views
what did sudo passwd do
I was trying to change the default password for my raspberry pi and I used sudo passwd instead of just passwd. What did I change when I used sudo passwd?
It didn't even ask me to enter the current ...
3
votes
1answer
90 views
Running a small HTLM5 website on a RPi3B when it has no fixed IP [closed]
I'm planning on making my first web-server. My plan is to use a RPi3B (or RPi3A if it comes without wifi and bluetooth, but with ethernet) for it.
But because I'm new to web-servers I've a couple of ...
1
vote
1answer
629 views
Download from apt-get through HTTPS only?
Today during a sudo apt-get dist-upgrade I noticed that at the beginning of the process it lists a series of lines starting as:
Get: 1 http:/mirrordirector.raspberrypi.org ...
Get: 2 http:/archive....
