The Hidden Path to an HP Printer: A Real-World Discovery
作者通过目录暴力破解发现HP打印机未受保护的管理页面,可直接访问并修改网络设置、添加联系人或切断网络连接,最终报告漏洞获700美元奖励。 2025-9-6 05:50:30 Author: infosecwriteups.com(查看原文) 阅读量:11 收藏

Manav

Alright, so here’s a weird story from my adventures while doing Bug Bounty…
Hey guys, I hope you’re doing well! I’m back again with another interesting Story. Today, I want to share how I discovered HP printer’s admin page by Doing basic directory brute-forcing. It Looks like someone decided the printer should be Open for all to access.

Grab your coffee, and let’s get started! 😉

The Discovery

It all started on a regular afternoon. I was watching YouTube, just passing the time, when an email from CyberBay showed up in my inbox. It mentioned that some new programs had been launched, so I thought, why not take a look? I started with some basic recon, used WaybackURLs to find some old archived paths, then ran Nuclei to check for any quick wins. Nothing came up. So, I fired up Dirsearch and started brute-forcing directories, hoping to find something interesting. That’s when things took an unexpected turn one hidden path caught my eye, and it wasn’t just any path.
I found myself staring at the unlocked admin page of an HP Printer.

Digging Deeper: Access and Control

This is the URL that earned me a critical bug within minutes:
http://n119236249203.example.com/SSI/index.htm

When I first opened it, I wasn’t expecting much. It looked like a basic, and boring link nothing that much important. But as soon as the page loaded, I realized I was looking at something way more serious , the full admin panel of an HP printer.

No login, no warning, just open access to everything.

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I just start exploring the admin panel and was able to find that:

  • I was able to modify network settings, like DNS and IP configurations, to redirect traffic through a malicious network they control.

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  • I was able to change the printer’s phone book, like adding some extra contact names in their list.

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  • An attacker could also disable all network connections, cutting the printer off completely and rendering it unusable.

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Disclosure & Reward

I reported the issue to the platform, and the very next morning, I got an email saying the report was accepted and I was rewarded $700 for this finding.

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Plus an extra $175 for retesting the issue. That’s when I realized even printers can pay you that much.

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文章来源: https://infosecwriteups.com/the-hidden-path-to-an-hp-printer-a-real-world-discovery-4b05187a8271?source=rss----7b722bfd1b8d--bug_bounty
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