📱 Mobile Security Tips
Sarah Chen — iOS Security Specialist
What is OpenVAS?
OpenVAS (Open Vulnerability Assessment System) is a full-featured vulnerability scanner used to detect security issues in servers and network devices. It uses a database of threats and vulnerabilities to assess the security status of systems.
Installation
To install OpenVAS on a Debian-based system, use the following commands:
sudo apt update
sudo apt install openvas
After installation, initialize OpenVAS:
sudo gvm-setup
Basic Syntax
The basic command structure for running OpenVAS scans is:
openvas-cli
Discovery
Discovery is the first step to identify targets and gather information.
Target Identification
To define a target for scanning:
omp --create-target --name "Target_Name" --hosts "192.168.1.1"
Scanning
Setting up and executing a scan is straightforward using OpenVAS.
Initiating a Scan
Once the target is set, a scan can be run:
omp --start-task
| Flag | Description |
|---|---|
| –start-task | Starts a scan task |
Exploitation
Post-Scan Actions
After a scan, you can retrieve the results:
omp --get-report
Analysis
Result Analysis
To analyze vulnerabilities found during scans, generate a summary:
omp --get-report --report-id--format PDF
Evasion
Consider tuning the scanning engine to evade detection.
Adjusting Scan Parameters
omp --update-config --parameter --value
Reporting
Generate comprehensive reports after scanning.
Creating a Report
omp --create-report --name--target
Quick Reference Table
| Command | Description |
|---|---|
| omp –create-target | Create a new scanning target |
| omp –start-task | Start a defined scan task |
Pro Tips
- Regular Updates: Always update your OpenVAS NVT feed to ensure the latest vulnerabilities are checked.
- Use Port Scanning: Leverage port scanning options to identify open and vulnerable services.
- Customize Reports: Tailor your reports to customer needs to enhance clarity.
Real-World Examples
For example, if you wanted to scan an external IP range, you would set up a target with the following command:
omp --create-target --name "External_Scan" --hosts "205.251.233.175/24"