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Zenmap: at end of scan discoverd ports are not shown in ports/host tab even though many "discovered open port..." were printed #470

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illtellyoulater opened this issue Jul 23, 2016 · 2 comments

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@illtellyoulater
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illtellyoulater commented Jul 23, 2016

Using Zenmap on Windows, during a TCP SYN scan I see the following output:

[...]
Initiating SYN Stealth Scan at 06:28
Scanning 46 hosts [1000 ports/host]
Discovered open port 80/tcp on xxx
Discovered open port 80/tcp on xxx
Discovered open port 443/tcp on xxx
[...]
Initiating NSE at 06:33
Completed NSE at 06:33, 0.00s elapsed
Read data files from: C:\Program Files (x86)\Nmap
OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/
Nmap done: 3328 IP addresses (110 hosts up) scanned in 729.89 seconds
Raw packets sent: 665752 (28.622MB) | Rcvd: 35363 (2.156MB)

At the end of the scan I see that the host/services left pane is populated with all the hosts that were probed alive, but clicking on a host and then on the "ports/hosts" tab would not show any of the ports that were discovered during the TCP SYN scan. I understand that services in host/services pane is only for showing verified services, but shouldn't I be able to see the discovered ports in the "ports/hosts" tab ?

@illtellyoulater illtellyoulater changed the title At the end of a TCP SYN scan results are not shown in Zenmap host/services pane, even though many "discovered open port..." were seen in output Zenmap: at end of scan services are not shown in host/services pane even though many "discovered open port..." were printed Jul 23, 2016
@illtellyoulater illtellyoulater changed the title Zenmap: at end of scan services are not shown in host/services pane even though many "discovered open port..." were printed Zenmap: at end of scan discoverd ports are not shown in ports/host tab even though many "discovered open port..." were printed Jul 23, 2016
@illtellyoulater
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illtellyoulater commented Jul 23, 2016

I think this will end up touching this: #64

Any chances this will become a feature?

Finding that it was related to timeouts was really complicated, and I could only get there thanks to this question:

http:https://security.stackexchange.com/questions/102442/nmap-output-to-file-different-than-interactive-output

which I've managed to reach only after a lot of hair pulling, googling for:

nmap "discovered open port" missing

@illtellyoulater
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illtellyoulater commented Jul 23, 2016

I confirm that after removing the aggressive timeout parameter that I had set (--host-timeout 1m), then the "discovered open port"'s are correctly showing in the final report and in the hosts/ports tab but..

Now I also understand that what I need to set a timeout on the scripts only but currently there is no way to do that... so it could be a great time to merge this #330 :)

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