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NSE script output is not under the right host #2175

@mimi89999

Description

@mimi89999

Describe the bug
NSE script outputs are not printed directly under the scanned host and port. Instead, they are printed much later making them unusable.

To Reproduce

$ nmap -p 80,443 --script=/dev/shm/hostmap-crtsh.nse --script=http-robots.txt --script-args=newtargets lebihan.pl
Starting Nmap 7.91 ( https://nmap.org ) at 2020-11-07 16:14 CET
Nmap scan report for lebihan.pl (89.72.190.170)
Host is up (0.00086s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Host script results:
| hostmap-crtsh: 
|   subdomains: 
|     www.lebihan.pl
|     algorytmy.lebihan.pl
|     biboumi.lebihan.pl
|     conference.lebihan.pl
|     mta-sts.lebihan.pl
|     nextcloud.lebihan.pl
|     www.nextcloud.lebihan.pl
|     jmap.lebihan.pl
|     strona-abcdbanku.com.lebihan.pl
|_    proxy.lebihan.pl

Nmap scan report for www.lebihan.pl (89.72.190.170)
Host is up (0.0020s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for algorytmy.lebihan.pl (89.72.190.170)
Host is up (0.0017s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for biboumi.lebihan.pl (89.72.190.170)
Host is up (0.0017s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for conference.lebihan.pl (89.72.190.170)
Host is up (0.0017s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for mta-sts.lebihan.pl (89.72.190.170)
Host is up (0.0017s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for nextcloud.lebihan.pl (89.72.190.170)
Host is up (0.0018s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for www.nextcloud.lebihan.pl (89.72.190.170)
Host is up (0.0018s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for jmap.lebihan.pl (89.72.190.170)
Host is up (0.0018s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for strona-abcdbanku.com.lebihan.pl (89.72.190.170)
Host is up (0.0019s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for proxy.lebihan.pl (89.72.190.170)
Host is up (0.0020s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/
| http-robots.txt: 1 disallowed entry 
|_/
| http-robots.txt: 1 disallowed entry 
|_/
| http-robots.txt: 1 disallowed entry 
|_/
| http-robots.txt: 1 disallowed entry 
|_/
| http-robots.txt: 1 disallowed entry 
|_/
| http-robots.txt: 1 disallowed entry 
|_/
| http-robots.txt: 1 disallowed entry 
|_/

Nmap done: 11 IP addresses (11 hosts up) scanned in 26.15 seconds

Expected behavior
NSE script output should be under the correct host and port as achieved by using --max-hostgroup 1 as a workaround.

$ nmap --max-hostgroup 1 -p 80,443 --script=/dev/shm/hostmap-crtsh.nse --script=http-robots.txt --script-args=newtargets lebihan.pl
Starting Nmap 7.91 ( https://nmap.org ) at 2020-11-07 16:15 CET
Nmap scan report for lebihan.pl (89.72.190.170)
Host is up (0.0010s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Host script results:
| hostmap-crtsh: 
|   subdomains: 
|     www.lebihan.pl
|     algorytmy.lebihan.pl
|     biboumi.lebihan.pl
|     conference.lebihan.pl
|     mta-sts.lebihan.pl
|     nextcloud.lebihan.pl
|     www.nextcloud.lebihan.pl
|     jmap.lebihan.pl
|     strona-abcdbanku.com.lebihan.pl
|_    proxy.lebihan.pl

Nmap scan report for www.lebihan.pl (89.72.190.170)
Host is up (0.0018s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap scan report for algorytmy.lebihan.pl (89.72.190.170)
Host is up (0.0013s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for biboumi.lebihan.pl (89.72.190.170)
Host is up (0.0013s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap scan report for conference.lebihan.pl (89.72.190.170)
Host is up (0.0013s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap scan report for mta-sts.lebihan.pl (89.72.190.170)
Host is up (0.0013s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https

Nmap scan report for nextcloud.lebihan.pl (89.72.190.170)
Host is up (0.0014s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap scan report for www.nextcloud.lebihan.pl (89.72.190.170)
Host is up (0.0014s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap scan report for jmap.lebihan.pl (89.72.190.170)
Host is up (0.0014s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap scan report for strona-abcdbanku.com.lebihan.pl (89.72.190.170)
Host is up (0.0016s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap scan report for proxy.lebihan.pl (89.72.190.170)
Host is up (0.0015s latency).
rDNS record for 89.72.190.170: 89-72-190-170.dynamic.chello.pl

PORT    STATE SERVICE
80/tcp  open  http
443/tcp open  https
| http-robots.txt: 1 disallowed entry 
|_/

Nmap done: 11 IP addresses (11 hosts up) scanned in 30.62 seconds

Version info (please complete the following information):

  • OS: Debian testing (bullseye) kernel 5.9.0-1-amd64
  • Output of nmap --version:
Nmap version 7.91 ( https://nmap.org )
Platform: x86_64-pc-linux-gnu
Compiled with: liblua-5.3.3 openssl-1.1.1h libssh2-1.8.0 libz-1.2.11 libpcre-8.39 libpcap-1.9.1 nmap-libdnet-1.12 ipv6
Compiled without:
Available nsock engines: epoll poll select

Note: /dev/shm/hostmap-crtsh.nse is the file from #2174

  • Output of nmap --iflist

Additional context
Add any other context about the problem here, such as special network type.

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