Nmap is een programma voor het verkennen en controleren van een netwerk. Het is ontworpen om zonder vertragingen een groot netwerk te scannen, maar het werkt ook zonder problemen op een enkele host. Het programma maakt gebruik van zogeheten 'raw ip packets' om actieve hosts en informatie over de beschikbare services te achterhalen. Voor meer informatie over de mogelijkheden verwijzen we jullie door naar deze pagina. De ontwikkelaars hebben enige tijd geleden versie 4.60 uitgebracht en voorzien van de volgende aankondiging op de mailinglijst:
Hi everyone. This is the first nmap-hackers message of the year, but we haven't been slacking. The nmap-dev list has more than 500 posts so far this quarter, and we've made many great improvements to Nmap during the period.
Nmap-hackers is reserved for the most important Nmap news, but that won't prevent me from starting out this message with something frivolous :). I recently learned that Nmap was in not just one, but two major motion pictures last year! In addition to the known Bourne Ultimatum appearance, I now have screen shots of Nmap being used in Die Hard 4: Live Free or Die Hard. I've posted them to the new Nmap movies page. Nmap has become quite the movie star! Who knows where it will show up in 2008.
The other exciting news I have for you is that Nmap 4.60 has been released. The changelog (http://nmap.org/changelog.html) notes more than 60 important changes since 4.50. This includes a new and shorter URL (nmap.org rather than insecure.org/nmap/), massive OS detection and version detection signature updates, many new Nmap Scripting Engine scripts, bug fixes, performance optimization, and more. It is available now from the download page. Don't hesitate to let us know on nmap-dev if you find any problems.
- Nmap has moved. Everything at http://insecure.org/nmap/ can now be found at http://nmap.org . That should save your fingers from a little bit of typing. Even though transparent redirectors are in place for the old URLs, please update your links and bookmarks. And if you don't have a link to Nmap on your web site, now is a good time to add one :).
- All of your OS detection fingerprints up until March 10, 2008 have now been integrated by David. The second generation database has grown from 1,085 fingerprints representing 421 operating systems/devices, to 1,304 fingerprints representing 478 systems. That is an increase of more than 20%. New fingerprints were added for Mac OS X Tiger, iPod Touch, the La Fonera WAP, FreeBSD 7.0, Linux 2.6.24, Windows 2008, Vista, OpenBSD 4.2, and of course hundreds of broadband routers, VoIP phones, printers, some crazy oscilloscope, etc. We get a ton of new fingerprint submissions, but not as many corrections. Please remember to visit http://nmap.org/submit/ if Nmap gives you bad results, whether they are completely wrong or just a slight mistake (like Nmap says Linux 2.6.20-2.6.23, but you're running 2.6.24). Of course you need to be certain you know exactly what is running on the target before you do this.
- All of your service fingerprints and corrections submitted until January 14, 2008 have now been integrated by Doug. As usual, he has documented his adventures at http://hcsw.org/blog.pl/33 . More than a hundred signatures were added, growing the database to 4,645 signatures for 457 services. Corrections are welcome for service detection too -- visit http://nmap.org/submit/ if you get incorrect results.
- Nmap now saves the target name (if any) specified on the command line, since this can differ from the reverse DNS results. It can be particularly important when doing HTTP tests against virtual hosts. The data can be accessed from target->TargetName() from Nmap proper and host.targetname from NSE scripts. The NSE HTTP library now uses this for the Host header. Thanks to Sven Klemm for adding this useful feature.
- Added NSE HTTP library which allows scripts to easily fetch URLs with http.get_url() or create more complex requests with http.request(). There is also an http.get() function which takes components (hostname, port, and path) rather than a URL. The HTTPAuth, robots, and showHTMLTitle NSE scripts have been updated to use this library. Sven Klemm wrote all of this code.
- Fixed an integer overflow in the DNS caching code that caused nmap to loop infinitely once it had expunging the cache of older entries. Thanks to David Moore for the report, and Eddie Bell for the fix.
- Fixed another integer overflow in the DNS caching code which caused infinite loops. [David]
- Added IPv6 host support to the RPC scan. Attempting this before (via -sV) caused a segmentation fault. Thanks to Will Cladek for the report. [Kris]
- Fixed an event handling bug in NSE that could cause execution of some in-progress scripts to be excessively delayed. [Marek]
- A new NSE table library (tab.lua) allows scripts to deliver better formatted output. The Zone transfer script (zoneTrans.nse) has been updated to use this new facility. [Eddie]
- Rewrote HTTPpasswd.nse to use Sven's excellent HTTP library and to do some much-needed cleaning up. [Kris]
- Added a new MsSQL version detection probe and a bunch of match lines developed by Tom Sellers.
- Added a new service detection probe and signatures for the memcached service [Doug]
- Added new service detection probes and signatures for the Beast Trojan and Firebird RDBMS. [Brandon Enright]
- Fixed a crash in Zenmap which occurred when attempting to edit or create a new profile based on an existing one when there wasn't one selected. The error message was: 'NoneType' object has no attribute 'toolbar' Now a new Profile Editor is opened. Thanks to D1N (email@example.com) for the report. [Kris]
- Fixed another crash in Zenmap which occurred when exiting the Profile Editor (while editing an existing profile) by clicking the "X", then going to edit the same profile again. The error message was: "No option named '' found!". Now the same window that appears when clicking Cancel comes up when clicking "X". Thanks to David for reporting this bug. [Kris]
- Another Zenmap bug was fixed: ports consolidated into "extra ports" groups are now counted and shown in the "Host Details" tab. The closed, filtered and scanned port counts in this tab didn't contain this information before so they were usually very inaccurate. [Kris]
- Another Zenmap bug was fixed: the --scan-delay and --max-scan-delay buttons ("amount of time between probes") under the Advanced tab in the Profile Editor were backwards. [Kris]
- Added the UDP Scan (-sU) and IPProto Ping (-PO) to Zenmap's Profile Editor and Command Wizard. [Kris]
- Reordered the UDP port selection for Traceroute: a closed port is now chosen before an open one. This is because an open UDP port is usually due to running version detection (-sV), so a Traceroute probe wouldn't elicit a response. [Kris]
- Add Famtech Radmin remote control software probe and signatures to the Nmap version detection DB. [Tom Sellers, Fyodor]
- Add "Conection: Close" header to requests from HTTP NSE scripts so that they finish faster. [Sven Klemm]
- Update SSLv2-support NSE script to run against more services which are likely SSL. [Sven Klemm]
- A bunch of service name canonicalization was done in the Nmap version detection file by Brandon Enright (e.g. capitalizing D-Link and Netgear consistently).
- Upgraded the shipped LibPCRE from version 7.4 to 7.6. [Kris]
- Updated to latest (as of 3/15) autoconf config.sub/config.guess files from http://cvs.savannah.gnu.org/viewvc/config/?root=config .
- We now escape newlines, carriage returns, and tabs (\n\r\t) in XML output. While those are allowed in XML attributes, they get normalized which can make formatting the output difficult for applications which parse Nmap XML. [Joao Medeiros, David, Fyodor]
- The Zenmap man page is now installed on Unix when "make install" is run. This was supposed to work before, but didn't. [Kris]
- Fixed a man page bug related to our DocBook to Nroff translation software producing incorrect Nroff output. The man page no longer uses the ".nse" string which was being confused with the Nroff no-space mode command. [Fyodor]
- Fixed a bug in which some NSE error messages were improperly escaped so that a message including "c:\nmap" would end up with a newline between "c:" and "map".
- Updated IANA assignment IP list for random IP (-iR) generation. [Kris]
- The DocBook XML source code to the Nmap Scripting Engine docs (http://nmap.org/nse/) is now in SVN under docs/scripting.xml .
- Impoved Windows executable installer by making uninstall wor. [Rob Nicholls]
- The Nmap Scripting Engine (NSE) now supports run-time interaction and the Nmap --host-timeout option. [Doug]
- Added nmap.fetchfile() function for scripts so they can easily find Nmap's nmap-* data files (such as the OS/version detection DBs, port number mapping, etc.) [Kris]
- Updated rpcinfo.nse to use nmap.fetchfile() to read from nmap-rpc instead of having a huge table of RPC numbers. This reduced the script's size by nearly 75%. [Kris]
- Fixed multiple NSE scripts that weren't always properly closing their sockets. The error message was: "bad argument #1 to 'close' (nsock expected, got no value)" [Kris]
- Added a new version detection probe for the Trend Micro OfficeScan product line. [Tom Sellers, Doug]