SecTools.Org: Top 125 Network Security Tools

For more than a decade, the Nmap Project has been cataloguing the network security community's favorite tools. In 2011 this site became much more dynamic, offering ratings, reviews, searching, sorting, and a new tool suggestion form. This site allows open source and commercial tools on any platform, except those tools that we maintain (such as the Nmap Security Scanner, Ncat network connector, and Nping packet manipulator).

We're very impressed by the collective smarts of the security community and we highly recommend reading the whole list and investigating any tools you are unfamiliar with. Click any tool name for more details on that particular application, including the chance to read (and write) reviews. Many site elements are explained by tool tips if you hover your mouse over them. Enjoy!

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(2) ★★★★ Socat (#108, 37)

A utility similar to the venerable Netcat that works over a number of protocols and through a files, pipes, devices (terminal or modem, etc.), sockets (Unix, IP4, IP6 - raw, UDP, TCP), a client for SOCKS4, proxy CONNECT, or SSL, etc. It provides forking, logging, and dumping, different modes for interprocess communication, and many more options. It can be used, for example, as a TCP relay (one-shot or daemon), as a daemon-based socksifier, as a shell interface to Unix sockets, as an IP6 relay, for redirecting TCP-oriented programs to a serial line, or to establish a relatively secure environment (su and chroot) for running client or server shell scripts with network connections. Read 2 reviews.

Latest release: version 2.0.0-b4 on Aug. 2, 2010 (14 years, 5 months ago).

(3) ★★★★½ NBTScan (#111, 72)

NBTScan is a program for scanning IP networks for NetBIOS name information (similar to what the Windows nbtstat tool provides against single hosts). It sends a NetBIOS status query to each address in a supplied range and lists received information in human readable form. For each responded host it lists IP address, NetBIOS computer name, logged-in user name and MAC address. The original nbtscan was written by Alla Bezroutchko. Steve Friedl has written an alternate implementation. Read 4 reviews.

Latest release: version 1.5.1 on June 1, 2003 (21 years, 7 months ago).

no rating Wfuzz (#114, new!)

Wfuzz is a tool for bruteforcing Web Applications, it can be used for finding resources not linked (directories, servlets, scripts, etc), bruteforcing GET and POST parameters for different kinds of injections (SQL, XSS, LDAP, etc.), bruteforcing form parameters (user/password), fuzzing, and more. Review this tool.

Latest release: version 2.0 on Aug. 4, 2011 (13 years, 5 months ago).

no rating Unicornscan (#116, 38)

Unicornscan is an attempt at a User-land Distributed TCP/IP stack for information gathering and correlation. It is intended to provide a researcher a superior interface for introducing a stimulus into and measuring a response from a TCP/IP enabled device or network. Some of its features include asynchronous stateless TCP scanning with all variations of TCP flags, asynchronous stateless TCP banner grabbing, and active/passive remote OS, application, and component identification by analyzing responses. Like Scanrand, it isn't for the faint of heart. Read 2 reviews.

Latest release: version 0.4.7-2 on Dec. 20, 2007 (17 years, 1 month ago).

no rating Stunnel (#117, 38)

The stunnel program is designed to work as an SSL encryption wrapper between remote client and local (inetd-startable) or remote servers. It can be used to add SSL functionality to commonly used inetd daemons like POP2, POP3, and IMAP servers without any changes in the programs' code. It will negotiate an SSL connection using the OpenSSL or SSLeay libraries. Review this tool.

Latest release: version 5.16 on April 19, 2015 (9 years, 9 months ago).

no rating SELinux (#118, new!)

Security Enhanced Linux (SELinux) is a security enhancement to Linux implementing mandatory access control (MAC). Users and processes can be granted their least required privileges in a much more granular way than with traditional Unix access control. For example, you can define a policy to prevent your web browser from reading your SSH keys. The security model of SELinux has been ported to other operating systems; see SEBSD for FreeBSD and Project fmac for OpenSolaris. Read 1 review.

(3) ★★★★ Wapiti (#121, new!)

Wapiti allows you to audit the security of your web applications. It performs "black-box" scans; i.e., it does not study the source code of the application but will scans the webpages of the deployed webapp, looking for scripts and forms where it can inject data. Once it gets this list, Wapiti acts like a fuzzer, injecting payloads to see if a script is vulnerable. Read 4 reviews.

Latest release: version 2.2.1 on Dec. 29, 2009 (15 years ago).

(1) ★ Honeyd (#124, 44)

Honeyd is a small daemon that creates virtual hosts on a network. The hosts can be configured to run arbitrary services, and their TCP personality can be adapted so that they appear to be running certain versions of operating systems. Honeyd enables a single host to claim multiple addresses on a LAN for network simulation. It is possible to ping the virtual machines, or to traceroute them. Any type of service on the virtual machine can be simulated according to a simple configuration file. It is also possible to proxy services to another machine rather than simulating them. It has many library dependencies, which can make compiling/installing Honeyd difficult. Read 2 reviews.

Latest release: version 1.5c on May 27, 2007 (17 years, 7 months ago).

no rating AIDE (#125, new!)

AIDE (Advanced Intrusion Detection Environment) is a rootkit detector, a free replacement for Tripwire. It makes cryptographic hashes of important system files and stores them in a database. It can then make reports about which files have changed. Read 1 review.

Latest release: version 0.16a1 on Feb. 16, 2011 (13 years, 11 months ago).

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