Active recon¶
Scanning¶
With Nmap, Masscan or Zgrab2¶
You can use network scanners directly:
IVRE can insert XML output files for Nmap and Masscan, and JSON output
files for the other tools, using the command line tool ivre
scan2db
.
You can insert scan results from different tools, then use ivre
db2view nmap
to merge results from different scans and create a view
you can explore with the the Web User Interface,
the ivre view
command line tool or the Python API
(ivre.db.db.view.*
).
With IVRE¶
Masscan does not provide results as complete as Nmap, when using the
“interesting” options (for example, -vv -A
) or scripts. That being
said, Nmap (with such “interesting” options) cannot run efficiently
against huge networks.
The ivre runscans
tool can run one Nmap process per target (option
--output=XMLFork
). This should be less efficient in theory,
because Nmap supposedly knows better how to handle the host and
network resources, but in practice it is much more efficient. You can
adjust how many Nmap processes you want to run in parallel using the
--processes N
option.
Another advantage of using ivre runscans --output=XMLFork
over
using Nmap directly is that ivre runscans
produces output files as
soon as each host has been scanned (in the scans/*/up
directory).
Here is a simple example:
$ sudo ivre runscans --routable --limit 1000 --output=XMLFork
This will run a standard scan against 1000 random hosts on the Internet
by running 30 nmap processes in parallel. See the output of
ivre help runscans
if you want to do something else.
When it’s over, to import the results in the database and create a
view from them, run (ROUTABLE-001
is the category name, and
MySource
is the source name, usually referencing the machine used
to run the scan):
$ ivre scan2db -c ROUTABLE-001 -s MySource -r scans/ROUTABLE/up
$ ivre db2view nmap
Enjoying the results¶
You have several options, depending on what you want to do:
- Command line interfaces: the
ivre scancli
tool. - Python API: use the
db.nmap
object of theivre.db
module. - Web API:
/cgi/scans
.
If you want to combine several tools, for example Masscan and Nuclei
results, you need to use a view: run ivre db2view nmap
to create
or update a view from the scan data, that can then be accessed by the
view
purpose (see Purposes), which
includes the Web User Interface.
CLI¶
To get all the hosts with the port 22 open:
$ ivre scancli --port 22
See the output of ivre help scancli
.
Python module¶
To use the Python module, run for example:
$ python
>>> from ivre.db import db
>>> db.nmap.get(db.nmap.flt_empty)[0]
For more, run help(db.nmap)
from the Python shell.