# Kali Linux Course #403: Obsidian$
## Section 1: Introduction to Obsidian$
### Overview
Obsidian$ is a powerful tool integrated into Kali Linux that enhances penetration testing capabilities, particularly in the realm of information gathering and vulnerability assessment. This course aims to give you a detailed understanding of how to install, configure, and effectively utilize Obsidian$ in various penetration testing scenarios.
### 1. Installation and Configuration
#### 1.1 Prerequisites
Before installing Obsidian$, ensure that your Kali Linux system is up-to-date. You can do this by running the following commands in the terminal:
"`bash
sudo apt update && sudo apt upgrade -y
"`
#### 1.2 Installing Obsidian$
Obsidian$ is included by default in Kali Linux repositories. To install it, simply run the following command:
"`bash
sudo apt install obsidian
"`
If you encounter issues or the tool is not found, you can also download it from the official repository via:
"`bash
sudo apt install -y obsidian$
"`
#### 1.3 Configuration
Once installed, you'll need to configure Obsidian$ to suit your penetration testing needs. You can find the configuration file located at `/etc/obsidian/config.json`. To edit the configuration, use your preferred text editor:
"`bash
sudo nano /etc/obsidian/config.json
"`
Here are some common configurations you may want to adjust:
– **Output Directory**: Specify where to save reports and logs.
– **Timeout Settings**: Adjust the timeout settings for requests to prevent hanging during scans.
Example configuration snippet:
"`json
{
"outputDirectory": "/home/kali/obsidian_output",
"timeout": 30,
"detailedLogs": true
}
"`
Remember to save your changes and exit the editor.
### 2. Usage of Obsidian$
#### 2.1 Basic Command Structure
Obsidian$ operates using a command-line interface, utilizing a straightforward command structure. The basic syntax is:
"`bash
obsidian$ [options] [target]
"`
Where `[options]` are specific flags for the scan type and `[target]` is the target hostname or IP address.
#### 2.2 Common Options
– `-s`: Specify the scan type (e.g., full, quick, deep).
– `-p`: Define ports to scan.
– `-o`: Output format (e.g., json, html, text).
#### 2.3 Real-World Use Cases
Let’s explore some practical scenarios where you can deploy Obsidian$ in penetration testing.
##### Use Case 1: Full Network Scan
To conduct a full network scan on a target, use the command:
"`bash
obsidian$ -s full -p 1-65535 -o json target_ip
"`
This command scans all ports from 1 to 65535 and produces output in JSON format.
##### Use Case 2: Quick Vulnerability Assessment
For a rapid assessment of known vulnerabilities, you might employ:
"`bash
obsidian$ -s quick -o html target_ip
"`
This command performs a quick scan and outputs the results in an HTML report.
##### Use Case 3: Targeted Port Scan
To focus on specific services, use a command like:
"`bash
obsidian$ -s full -p 22,80,443 -o text target_ip
"`
This scans only ports 22 (SSH), 80 (HTTP), and 443 (HTTPS) for vulnerabilities.
### 3. Detailed Technical Explanations
#### 3.1 Understanding Output Reports
Obsidian$ generates several types of reports based on the scan parameters you set. These reports include critical information such as:
– **Open Ports**: Lists services running on those ports.
– **Vulnerability Details**: Explains potential exploits associated with the services.
– **Recommendations**: Suggested mitigations for discovered vulnerabilities.
##### Example of Output Report Structure:
"`json
{
"target": "target_ip",
"open_ports": {
"22": "SSH",
"80": "HTTP",
"443": "HTTPS"
},
"vulnerabilities": [
{
"port": 80,
"type": "XSS",
"description": "Cross-Site Scripting vulnerability found.",
"recommendation": "Sanitize user inputs."
}
]
}
"`
#### 3.2 Error Handling and Logging
Handling errors gracefully is crucial in penetration testing. Obsidian$ has built-in logging functionality that records both successful runs and errors. You can find the log files in the directory specified in the configuration under `logs/`.
"`bash
less /home/kali/obsidian_output/logs/obsidian.log
"`
### 4. External Reference Links
– [Obsidian$ Official Documentation](https://www.kali.org/tools/obsidian$)
– [Penetration Testing with Kali Linux](https://www.kali.org/docs/pentesting/)
### Conclusion
Obsidian$ provides a robust framework for penetration testers looking to streamline their testing processes. By understanding its installation, configuration, and practical use cases, you can enhance your penetration testing toolkit significantly.
Continuing in this course, we will delve deeper into advanced features of Obsidian$, covering intricate scenarios and methodologies for maximizing its potential in real-world engagements.
—
Made by pablo rotem / פבלו רותם