嗯，用户让我帮忙总结一篇文章的内容，控制在100字以内，而且不需要特定的开头。首先，我需要仔细阅读文章内容，抓住关键点。 文章主要讲的是Slack的一个安全漏洞，涉及到SSRF（服务器端请求伪造）攻击。攻击者利用DNS重绑定技术绕过了Slack的安全防护措施，从而访问了内部网络资源。这个漏洞被研究人员发现，并获得了1万美元的赏金。 接下来，我需要将这些信息浓缩到100字以内。要确保涵盖主要事件：Slack的SSRF漏洞、DNS重绑定攻击、访问内部网络、赏金金额以及安全启示。 可能会遇到的问题是如何简洁地表达技术细节而不遗漏重要信息。比如，“DNS rebinding”和“SSRF”是关键术语，需要保留。同时，要说明攻击的影响和结果。 最后，检查字数是否在限制内，并确保语言流畅自然。 </think> Slack因SSRF漏洞被利用DNS重绑定技术绕过防护，导致内部网络资源暴露，最终支付1万美元赏金。 2026-1-13 06:16:16 Author: infosecwriteups.com(查看原文) 阅读量:0 收藏
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How a Simple DNS Rebinding Attack Led to Internal Network Access
Server-Side Request Forgery (SSRF) vulnerabilities remain one of the most critical security issues in modern web applications. Today, I’m breaking down a fascinating SSRF report that earned a researcher $10,000 from Slack’s bug bounty program, and the valuable lessons we can all learn from it.
The Vulnerability Overview
Severity: High
Free Read: Click
This report demonstrates how an attacker could bypass Slack’s SSRF protections using DNS rebinding techniques to access internal network resources that should have been completely isolated from external access.
Understanding the Attack Surface
Slack, like many modern applications, needs to fetch external resources — think profile images, link previews, or webhook callbacks. However, allowing a server to make arbitrary HTTP requests opens the door to SSRF attacks, where an attacker tricks the server into making requests to internal resources.
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