this post was submitted on 26 Sep 2024
166 points (97.7% liked)
Linux
48316 readers
767 users here now
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Rules
- Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
- No misinformation
- No NSFW content
- No hate speech, bigotry, etc
Related Communities
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Great advice. It would appear these developers don’t take security seriously.
Mdns is something most people have no idea exists.
Oh, neat, all my devices broadcast all their open ports, services, addresses, hardware and names? Cool!
No.
If your router/firewall is configured to let these broadcasts through you have a problem. If it is working correctly and you have an attacker on your lan? You have already lost.
It depends. If you're using a laptop and say you take it to university or work then you're not on your LAN. You're on someone else's LAN and they may have no interest in trying to stop these types of attacks via any kind of client isolation or it may be incomplete.
I can imagine it's a very normal scenario for university students to have CUPS running and available on all networks as they may need to print at their university.
You've just described every enterprise who allows Linux in their environment.
Errr I use mdns all the time...
Going to rely on security through obscurity instead?
Someone doesn't like apple
Nobody likes Apple. They're just afraid to say they don't.
They're standardised zeroconnf protocols. Apple was part of the early development.
Bonjour is the apple implementation for mDNS.
Avahi is the GPL compliant implementation.
mDNS, llmnr (ms developed), have been known for ages to be vulnerable.
https://en.m.wikipedia.org/wiki/Zero-configuration_networking#Standardization
*I don't like apple
To be vulnerable to what?
https://duckduckgo.com/?q=mdns+vulnerability&t=fpas&ia=web
https://book.hacktricks.xyz/generic-methodologies-and-resources/pentesting-network/spoofing-llmnr-nbt-ns-mdns-dns-and-wpad-and-relay-attacks
I could similarly link you an internet search for http or tls vulnerability, I fail to see your point