regreSSHion-checker

📜 Description

regreSSHion-checker is a lightweight, efficient tool designed to identify servers running vulnerable versions of OpenSSH, specifically targeting the recently discovered regreSSHion vulnerability (CVE-2024-6387). This tool facilitates rapid scanning of multiple IP addresses, domain names, and CIDR network ranges to detect potential vulnerabilities and ensure the security of your infrastructure.

🌟 Features

• Rapid Scanning: Quickly scan multiple IP addresses, domain names, and CIDR ranges for the CVE-2024-6387 vulnerability.
• Banner Retrieval: Efficiently retrieves SSH banners without authentication.
• Concurrency: Utilizes Go's concurrency model (goroutines) for parallel execution, significantly reducing scan times.
• Clear Output: Provides clear, emoji-coded output summarizing scan results.
• Port Check: Identifies closed ports and provides a summary of non-responsive hosts.

🛠️ Installing or Building

To install regreSSHion-checker from the GitHub repository, ensure you have Go installed and configured properly. Use the following command:

go get github.com/xonoxitron/regreSSHion-checker

After installation, you can use regreSSHion-checker as described in the usage section below.

To build regreSSHion-checker from source, ensure you have Go installed and follow these steps:

1. Clone the repository or download the source code.

   git clone https://github.com/your/repo.git
   cd regreSSHion-checker

2. Build the binary using go build.

   go build regreSSHion-checker.go

3. Optionally, you can set execute permissions.

   chmod +x regreSSHion-checker

Now you can use ./regreSSHion-checker to scan for CVE-2024-6387 vulnerabilities in OpenSSH across your infrastructure.

🚀 Usage

./regreSSHion-checker <targets> [--port PORT]

Examples

Single IP

./regreSSHion-checker 192.168.1.1

IPs from a list

./regreSSHion-checker -list ip_list.txt

Multiple IPs and Domains

./regreSSHion-checker 192.168.1.1 example.com 192.168.1.2

CIDR Range

./regreSSHion-checker 192.168.1.0/24

With Custom Port

./regreSSHion-checker 192.168.1.1 example.com --port 2222

Output

The tool provides a summary of the scanned targets:

• 🛡️ Not Vulnerable: Servers running a non-vulnerable version of OpenSSH.
• 🚨 Vulnerable: Servers running a vulnerable version of OpenSSH.
• 🔒 Closed Ports: Count of servers with port 22 (or specified port) closed.
• 📊 Total Scanned: Total number of targets scanned.

🛡️ Servers not vulnerable: 1

   [+] Server at 157.90.125.31 (running SSH-2.0-OpenSSH_8.2p1 Ubuntu-4ubuntu0.11)

🚨 Servers likely vulnerable: 2

   [+] Server at 4.231.170.121 (running SSH-2.0-OpenSSH_8.9p1 Ubuntu-3ubuntu0.10)
   [+] Server at 4.231.170.122 (running SSH-2.0-OpenSSH_9.2p1 Debian-2+deb12u2)

🔒 Servers with port 22 closed: 254

📊 Total scanned targets: 257

📚 References

• Qualys Blog on regreSSHion Vulnerability

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Notes:

• Ensure you have Go installed to compile and run the tool (go build regreSSHion-checker.go).
• Replace regreSSHion-checker with the name of the Go binary compiled from your source file.
• Adjust permissions if needed (chmod +x regreSSHion-checker) to execute the binary directly.

This README.md file now reflects the usage and features of the Go version of the regreSSHion-checker tool, providing users with clear instructions and examples for effective vulnerability scanning of OpenSSH servers.