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).

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84 views

Raspberry Pi Security Issues: SSH ATTACK? Case Study

This might be a long post so please bear with me. This is a scenario that took place a year back when I had very almost no knowledge of raspberry pi. Right now I am trying to learn some stuff about ...
2
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1answer
52 views

Does Raspberry Pi 4 supports pointer authentication?

I know that ARM Pointer Authentication feature is supported on all ARMv8.3-A processors, and this version was presented at 10/2016. RPi 4 Model B was released last year so there is a good chance the ...
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0answers
48 views

Pi cannot boot when encrypted USB SSD drive is attached

I have a Pi 4, running Raspbian 10 Buster. I have an attached SSD drive with LUKS encryption. When I restart the Pi, it wouldn't boot if the SSD is attached. Once I unplug it, it boots well and I can ...
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0answers
21 views

Bridge between Twilio API/phone line and closed circuit 20v intercom

Question about how to achieve the below using a Raspberry PI. What hardware would i need to buy and is the below possible? I have a closed circuit intercom system in my house. This is a video ...
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1answer
150 views

Adding Debian Security Repository GPG key

I'm kinda new when it comes to working with adding GPG keys. I am trying to use the debian security repository to the sources.list to further add security to my Pi but I am getting this error below. I ...
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0answers
108 views

Does Raspberry Pi 4 processor support AES-NI instructions?

In the interest of minimizing timing attacks on my OpenVPN and similar connections, does Raspberry Pi 4 support AES-NI instructions? Some reference to AES is made in the technical reference manual, ...
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0answers
42 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
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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 ...
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0answers
146 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)...
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0answers
105 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 ...
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1answer
87 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 ...
1
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1answer
84 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
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1answer
42 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
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1answer
379 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**...
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0answers
101 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 ...
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1answer
609 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
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1answer
342 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 ...
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1answer
64 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 ...
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1answer
59 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
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1answer
728 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 ...
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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 ...
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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: ...
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0answers
29 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:/...
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3answers
609 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 ...
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2answers
354 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 ...
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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 ...
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1answer
129 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 ...
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0answers
136 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 ...
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1answer
601 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
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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 ...
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1answer
266 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 ...
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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 ...
1
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1answer
120 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. ...
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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 ...
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1answer
1k 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
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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
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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
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1answer
699 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
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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?
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2answers
129 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
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2answers
16k 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 ...
2
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1answer
304 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) : [...
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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 ...
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1answer
967 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 $...
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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
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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
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3answers
628 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 ...
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0answers
114 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
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1answer
608 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....
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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 ...