Download Nmap 5.51

Nmap is a program for exploring and monitoring a network. It is designed to scan a large network without delays and also runs smoothly on a single host. The program uses so-called ‘raw ip packets’ to retrieve active hosts and information about the available services. More information about the possibilities can be found at this page . The developers released version 5.51 some time ago with the following list of changes:

Nmap 5.51

• [Ndiff] Added support for prerule and postrule scripts. [David]
• [NSE] Fixed a bug which caused some NSE scripts to fail due to the absence of the NSE SCRIPT_NAME environment variable when loaded. Michael Patrick reported the problem. [Djalal]
• [Zenmap] Selecting one of the scan targets in the left pane is supposed to jump to that host in the Nmap Output in the right pane (but it wasn’t). Brian Krebs reported this bug. [David]
• Fixed an obscure bug in Windows interface matching. If the MAC address of an interface couldn’t be retrieved, it might have been used instead of the correct interface. Alexander Khodyrev reported the problem. [David]
• [NSE] Fixed portrules in dns-zone-transfer and ftp-proftpd-backdoor that used shortport functions incorrectly and always returned true. [Jost Krieger]
• [Ndiff] Fixed ndiff.dtd to include two elements that can be diffed: status and address. [Daniel Miller]
• [Ndiff] Fixed the ordering of hostscript-related elements in XML output. [Daniel Miller]
• [NSE] Fixed a bug in the nrpe-enum script that would make it run for every port (when it was selected–it isn’t by default). Daniel Miller reported the bug. [Patrick]
• [NSE] When an NSE script sets a negative socket timeout, it now causes a controlled Lua stack trace instead of a fatal error. Vlatko Kosturjak reported the bug. [David]
• [Zenmap] Worked around an error that caused the py2app bootstrap executable to be non-universal even when the rest of the application was universal. This prevents the binary .dmg from working on PowerPC. Yxynaxen reported the problem. [David]
• [Ndiff] Fixed an output line that wasn’t being redirected to a file when all other output was. [Daniel Miller]