OpenSSH alternatives

Looking for an alternative tool to replace OpenSSH? During the review of OpenSSH we looked at other open source tools. Based on their category, tags, and text, these are the ones that have the best match.

Top 3

  1. Cowrie (SSH/telnet honeypot)
  2. Dockpot (SSH honeypot based on Docker)
  3. Fail2ban (log parser and blocking utility)

These tools are ranked as the best alternatives to OpenSSH.

Alternatives (by score)

70

Cowrie

Introduction

Cowrie is a honeypot to emulate SSH and telnet services. It can be used to learn attack methods and as an additional layer for security monitoring.

Project details

Cowrie is written in Python.

Strengths and weaknesses

  • + More than 50 contributors
  • + More than 1000 GitHub stars

    Typical usage

    • Information gathering
    • Learning
    • Security monitoring
    • Threat discovery

    Cowrie review

    56

    Dockpot

    Introduction

    Using an SSH honeypot is a good way to learn about common attacks on the SSH service. It can provide insights on the number of scans and probes on the network.

    Project details

    Dockpot is written in Python.

    Strengths and weaknesses

    • + The source code of this software is available
    • - No releases on GitHub available

    Typical usage

    • Learning
    • Threat discovery

    Dockpot review

    74

    Fail2ban

    Introduction

    Fail2Ban is an intrusion prevention software framework that protects computer servers from brute-force attacks

    Project details

    Fail2ban is written in Python.

    Strengths and weaknesses

    • + More than 2000 GitHub stars
    • + The source code of this software is available

      Typical usage

      • Network traffic filtering
      • Security monitoring

      Fail2ban review

      64

      HonSSH

      Introduction

      HonSSH is a high-interaction SSH honeypot to collect information about attackers that target the SSH service.

      Project details

      HonSSH is written in Python.

      Strengths and weaknesses

      • + The source code of this software is available
      • - Unknown project license

      Typical usage

      • Learning
      • Threat discovery

      HonSSH review

      63

      Kojoney

      Introduction

      Kojoney is a mix of the Spanish word cojon (s/c/k/) and honey.

      Project details

      60

      SSH Honeypot

      Introduction

      SSH Honeypot is as the name implies a honeypot to emulate the SSH service. It can be used to learn about threats and commands used by attackers.

      Project details

      SSH Honeypot is written in C.

      Strengths and weaknesses

      • + The source code of this software is available

        Typical usage

        • Learning
        • Threat discovery

        SSH Honeypot review

        60

        SSHsec

        Introduction

        SSHsec scans a system running the SSH protocol and retrieves its configuration, host keys, and Diffie-Hellman groups.

        Project details

        SSHsec is written in Python.

        Strengths and weaknesses

        • + The source code of this software is available

          Typical usage

          • Information gathering
          • Penetration testing
          • Security assessment

          SSHsec review

          74

          known_hosts_bruteforcer

          Introduction

          This utility is useful when you obtained a known_hosts file, but can't decipher the hashed hostnames from it.

          Project details

          known_hosts_bruteforcer is written in Perl.

          Strengths and weaknesses

          • + The source code of this software is available
          • - No updates for a while

          Typical usage

          • Digital forensics
          • Penetration testing

          known_hosts_bruteforcer review

          60

          ssh-audit

          Introduction

          The ssh-audit tool is of great help when scanning SSH servers to discover possible improvements. It is written in Python and with a simple 'git clone' it can already be started. You typically would use a tool like this to improve your own SSH configurations or as part of a security assignment.

          Project details

          ssh-audit is written in Python.

          Strengths and weaknesses

          • + The source code is easy to read and understand
          • + Tool is easy to use
          • + More than 2000 GitHub stars
          • + Very low number of dependencies
          • + The source code of this software is available

            Typical usage

            • Application security
            • Penetration testing
            • Security assessment

            ssh-audit review

            60

            ssh_scan

            Introduction

            This tool is light on its dependencies, as it only uses Ruby and BinData. The scanner is simple to use, as it is limited in the number of parameters and options. There is also the ability to show the results on the screen or export the data to a JSON file. The latter is great if you want to do further processing of the details, or simply store them for later comparison.

            Project details

            ssh_scan is written in Ruby.

            Strengths and weaknesses

            • + More than 10 contributors
            • + Many releases available
            • + The source code of this software is available
            • + Supported by a large company

              Typical usage

              • Penetration testing
              • Security assessment
              • System hardening
              • Vulnerability scanning

              ssh_scan review

              52

              sshttp

              Introduction

              This tool allows you to run a web server and SSH daemon on the same TCP port. It can be useful to bypass some firewall restrictions.

              Project details

              sshttp is written in C++.

              Strengths and weaknesses

              • + Project is mature (5+ years)
              • - Unknown project license

              Typical usage

              • Bypassing firewall rules
              • Protocol multiplexing

              sshttp review

              70

              sslh

              Introduction

              A typical use case for multiplexing is to allow serving several services on one port. Port 443 is commonly used, as that is typically opened on firewalls to allow HTTPS traffic. By multiplexing it, you can also use SSH or other services on the same port.

              Project details

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