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「代码审计」知识星球中@1ue 发表了一篇有趣的文章《探索Java反序列化绕WAF新姿势》，深入研究了一下其中的原理，我发现这是一个对我来说很“新”，但实际上年纪已经很大的Trick。

0x01 UTF-8编码原理

UTF-8是现在最流行的编码方式，它可以将unicode码表里的所有字符，用某种计算方式转换成长度是1到4位字节的字符。

参考这个表格，我们就可以很轻松地将unicode码转换成...

As cyber threats evolve, boards must remain vigilant in cyber security governance.

深蓝洞察年度安全报告第四篇

Last November, while testing Google Bard (now called Gemini) for vulnerabilities, I had a couple of interesting observations when it comes to automatic tool invocation. Confused Deputy - Automatic Tool Invocation First, what do I mean by this… “automatic tool invocation”… Consider the following scenario: An attacker sends a malicious email to a user containing instructions to call an external tool. Google named these tools Extensions. When the user analyzes the email with an LLM, it interprets the instructions and calls the external tool, leading to a kind of request forgery or maybe better called automatic tool invocation.