PRET
iodine
PRET | iodine | |
---|---|---|
12 | 58 | |
3,768 | 5,794 | |
0.7% | - | |
0.9 | 5.1 | |
6 months ago | 5 months ago | |
Python | C | |
GNU General Public License v3.0 only | ISC License |
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PRET
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Itried to issue PCL commands to my printer, but they always get a timed out error.
So i decided to tinker a bit before spending a shitload of money into toners or new printers, i'm using this tool to try access and issuing commands to the printer, the connection gets succesfully enstablished. After that i can issue commands in three different languages: PS and PJL doesn't seem to do anything, with PCL at least i see a Device: Unknown printer but all the commands i issue seem to simply not be taken in consideration from the printer, in any of the 3 languages, giving a Command execution failed (timed out) error.
- Chaotic good hacker
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what can ya do with a hacked printer? (jetdirect? port 9100 vuln)
my friend that owns a coffee shop asked me to poke around on his network to look for vulnerabilities in exchange for some free coffees and i saw that they had 9100 open, wasn't familiar with it so played around and found out about PRET which gave me access to his HP printer, with transversal you can gain access to the file system etc and from what i read you can open a root shell on another port, would the scope be limited to the printer, or can the printer be used as a vector to gain access to other systems connecting to said printer?
- PRET – The Printer Exploitation Toolkit
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Am I wearing a tin foil hat or is a public facing print server an issue?
Preferable you don't want it accessible from the internet at all. Using stuff like the Printer Exploitation Toolkit (PRET), people can get up to some nasty stuff on a public accessible (insecure) printer : https://github.com/RUB-NDS/PRET
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CVE-2022-23968: Xerox vulnerability allows unauthenticated users to remotely brick network printers
You'll love PRET then. It can also brick printers and do all kinds of other fun stuff with them.
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thought this was really fitting
Printer exploit framework: https://github.com/RUB-NDS/PRET
- Someone came into my job today asking if they have a virus because propaganda from this subreddit started coming out of their printer
- These came off of our printer at work tonight.
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Awesome Penetration Testing
Printer Exploitation Toolkit (PRET) - Tool for printer security testing capable of IP and USB connectivity, fuzzing, and exploitation of PostScript, PJL, and PCL printer language features.
iodine
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Show HN: This Website Is Hosted on DNS
Reminds me of using https://code.kryo.se/iodine/ ( DNS tunnel ) and a empty prepaid card...
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DNS Exfiltration Tool
Obligatory dns tunnel software for exfil. It is super noisy if you do dns querylogging, so I'd not use it for anything major, but it is a fun research tool.
https://github.com/yarrick/iodine
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Fun with DNS TXT Records
It's worth noting that you (re) invented what iodine does: https://code.kryo.se/iodine/
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WiFi without internet on a Southwest flight
(https://github.com/yarrick/iodine)
It’s slow, but it works and is a handy “last resort” tool.
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Russia starts blocking VPN at the protocol (WireGuard, OpenVPN) level
While working in an environment where VPN connections were pretty much all blocked⁰ a friend of mine had success using https://guacamole.apache.org/ to access a remote machine¹. Not quite the same as a direct VPN connection but worth a try if nothing else functions, it looks enough like normal HTTPS traffic that he got away with it.
To keep your wireguard setup more as-is, you could try https://kirill888.github.io/notes/wireguard-via-websocket/ to tunnel that via a web server. In fact https://github.com/erebe/wstunnel which that uses could be used just as well with any other UDP based VPN.
I once tinkered with https://github.com/yarrick/iodine and successfully connected to resources over the wireless on a train, bypassing its traffic capture and sign-up requirement, so that might be an option, though I think fully blocking external DNS is more common now so this is less likely to work²³.
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[0] practically only HTTP(S) permitted, not even SSH, DPI in use that detected just using SSH or OpenVPN over port 443
[1] NOTE: be careful breaching restrictions like this, you are at risk of an insta-sacking if discovered, or worse if operating in some securiry environments!
[2] and the latency when it does work is significant!
[3] and that much traffic over port 53 might get noticed by the heuristics of data exfiltration scanner, encouraging sysadmins to notice and implement a way to block it
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Show HN: File distribution over DNS: (ab)using DNS as a CDN
There's also iodine, a C program that tunnels IPv4 packets over DNS. Useful for bypassing captive portals on wifi, since DNS usually isn't restricted.
https://github.com/yarrick/iodine
Regarding cloudflare DNS over HTTPS: It could be that it tries to server data encoded as JSON, which is impossible in JSON. Some control characters and bytes 128-255 cannot be represented as JSON strings.
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Show HN: Use DNS TXT to share information
A regular proxy on port 53 might work? Is it necessary to actually use DNS?
Otherwise there's https://github.com/yarrick/iodine
- Anything can be a message queue if you use it wrongly enough
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help with choosing a VPN to host (I'll explain)
Well, you're really exhausting your options here (and possibly your IT department's patience). Iodine would still be an option, it creates a tunnel through DNS traffic. Nearly impossible to block/filter out but you shouldn't expect a lot of bandwidth. Try it out! Although if you're only going to use low-bandwidth applications through the tunnel anyway you might as well use your own mobile data plan instead of your school's WLAN.
- DNS blacklisting in enterprise
What are some alternatives?
Metasploit - Metasploit Framework
dnscat2
awesome-industrial-control-system-security - A curated list of resources related to Industrial Control System (ICS) security.
miniProxy
masscan - TCP port scanner, spews SYN packets asynchronously, scanning entire Internet in under 5 minutes.
PHP-Proxy - Proxy Application built on php-proxy library ready to be installed on your server
ZAP - The ZAP core project
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
pwntools - CTF framework and exploit development library
inlets - Get public TCP LoadBalancers for local Kubernetes clusters
mimikatz - A little tool to play with Windows security
Swiperproxy - A Python-based HTTP/HTTPS-proxy.