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Php Deser Audit

Community
0xShe
php-deser-audit

PHP Web 源码反序列化/对象注入审计工具。识别 unserialize 注入点与可控数据来源,追踪魔术方法链,输出可利用性分级、PoC 与修复建议(禁止省略)。

Overview

Publisher0xShe
RepositoryPHP-Code-Audit-Skill
Skill namephp-deser-audit
Stars
406
Forks
42
Bundled files
Instructions only
Links
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • Self-contained

    Everything the model needs lives in the instructions — no extra files to sync.

  • Open source

    Published by 0xShe on GitHub. Read the source before you install it.

Installation

Install the Php Deser Audit AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
    https://github.com/0xShe/PHP-Code-Audit-Skill/tree/main/php-deser-audit
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/0xShe/PHP-Code-Audit-Skill.git /tmp/PHP-Code-Audit-Skill
mkdir -p .claude/skills
cp -r /tmp/PHP-Code-Audit-Skill/php-deser-audit .claude/skills/php-deser-audit
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Php Deser Audit in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Php Deser Audit on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Php Deser Audit is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

PHP 反序列化审计(php-deser-audit)

分析 PHP 项目源码,识别用户可控数据进入 unserialize() 或等价反序列化点,结合类的魔术方法(__wakeup/__destruct/__call/__toString/{value})判断是否存在对象注入可利用链。

分级与编号

  • 详见:shared/SEVERITY_RATING.md
  • 漏洞编号:{C/H/M/L}-DESER-{序号}

危险 Sink(必做)

  • unserialize($data)
  • unserialize(base64_decode({value}))
  • 任何将用户输入转换后再反序列化的路径

可控性(必做)

必须追踪并输出:

  • 反序列化入参来自哪里:GET/POST/Cookie/Session/Header/数据库字段等
  • 是否存在 base64/加密/解码/拼接步骤(仍可能可控)
  • 是否有校验/签名(如 hash_hmac)以及签名是否可靠(需要证据)

gadget 链识别(必做)

必须输出:

  • 反序列化后的对象类型(或可能类型集合)
  • 该类型类中魔术方法列表与触发条件
  • “从对象创建 -> 魔术方法触发 -> 最终敏感操作(如文件/命令/SSRF/数据库)”的数据流链

tracer 触发条件(必做)

  • 反序列化入参经过多层 decode/封装
  • 魔术方法链跨多个类/文件

证据引用(强制:来自 php-route-tracer)

每条反序列化/对象注入疑似漏洞必须逐项引用 trace 输出中 ## 9) Sink Evidence Type Checklist 的 DESER 行对应证据要点(允许状态为待验证,但证据引用必须存在):

  1. EVID_DESER_CALLSITE:反序列化调用点位置证据(unserialize 等等价点)
  2. EVID_DESER_INPUT_SOURCE:入参用户可控来源证据
  3. EVID_DESER_OBJECT_TYPE_MAGIC_TRIGGER_CHAIN:反序列化后对象类型/魔术方法触发条件证据(以及最终敏感操作点链路证据,若能定位)

tracer 证据缺失处理(强制)

  • 若无法定位上述 1~3 任一关键证据要点:该漏洞状态只能标记为 ⚠️待验证,不得直接给出 ✅已确认可利用。

报告输出

输出到:

{output_path}/vuln_audit/deser_{timestamp}.md

PoC(强制,但标注为“概念 PoC/验证 PoC”)

必须给出:

  • 真实路由(或 cookie/session 字段使用方式)
  • payload 生成思路(若无法生成真实 gadget payload,必须给出“需人工补齐的部分”并说明原因,同时仍保留可执行框架与可替换字段)

Frequently asked questions

What does the Php Deser Audit AI skill do?

PHP Web 源码反序列化/对象注入审计工具。识别 unserialize 注入点与可控数据来源,追踪魔术方法链,输出可利用性分级、PoC 与修复建议(禁止省略)。

Why use Php Deser Audit on TypingMind?

Because you install it once and use it with any model. Php Deser Audit is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Php Deser Audit in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/0xShe/PHP-Code-Audit-Skill/tree/main/php-deser-audit. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Php Deser Audit?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Php Deser Audit?

As many as you like. As long as a model supports skills, you can use Php Deser Audit with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Php Deser Audit AI skill free?

It is published on GitHub by 0xShe. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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