Greenbone Vulnerability Manager - Modulares Sicherheits-Audit-Tool

Beschreibung

Greenbone Vulnerability Manager ist ein modulares Sicherheits-Audit-Tool

• Entfernte Systeme auf Schwachstellen testen
• Das Tool trug früher den Namen OpenVAS

What is OpenVAS?

OpenVAS is an open-source vulnerability scanner. OpenVAS started under the name of GNessUs, a fork of the previously open-source Nessus scanning tool (which costs you money now). OpenVAS is also under the GNU General Public License (GPL).

I personally used this software in many different kinds of assessments and was always satisfied with the results I got (keeping in mind that it is completely free).

Of course, tools like Nessus and NeXpose are more feature-rich, but they come with a high price tag too.

For starters, OpenVAS is simply perfect and gives you a good idea of how a vulnerability scanner works. I also found it very intuitive to work with.

So without further ado, let’s dive right into the installation.

OpenVAS, an endpoint scanning application and web application used to identify and detect vulnerabilities. It is widely used by companies as part of their risk mitigation solutions to quickly identify gaps in their production and even development servers or applications. This is not a complete solution, but it can help you fix common security vulnerabilities that may not be discovered. 

The condition of Greenbone mode is open (APEVALV) from infected chemistry (GVM) of the quality of the storage and the GitHub area. it is used in the Greenbone Security Manager device and is a comprehensive scan. An engine that runs an advanced and constantly updated Network Vulnerability Test Package (NVT).

Installation

siehe Greenbone Security Manager/Installation

Anwendungen

siehe Greenbone Security Manager/Anwendung

Konfiguration

siehe Greenbone Security Manager/Konfiguration

Sicherheit

Dokumentation

RFC

Man-Pages

Info-Pages

Siehe auch

1. Greenbone Security Manager/TRIAL

Links

Projekt

1. https://github.com/greenbone

Weblinks

1. https://greenbone.github.io/docs/latest/22.4/source-build/index.html

Einzelnachweise

Testfragen

TMP

OpenVAS Usage Examples

Before trying to do anything with OpenVAS, you must first run the setup script, appropriately named openvas-setup. At the end of the (very long) setup process, the automatically created password will be displayed to you. Save the password somewhere safe.

# openvas-setup
ERROR: Directory for keys (/var/lib/openvas/private/CA) not found!
ERROR: Directory for certificates (/var/lib/openvas/CA) not found!
ERROR: CA key not found in /var/lib/openvas/private/CA/cakey.pem
ERROR: CA certificate not found in /var/lib/openvas/CA/cacert.pem
ERROR: CA certificate failed verification, see /tmp/tmp.YpvirUZgxc/openvas-manage-certs.log for details. Aborting.

ERROR: Your OpenVAS certificate infrastructure did NOT pass validation.
       See messages above for details.
Generated private key in /tmp/tmp.XwwD8IOl5u/cakey.pem.
Generated self signed certificate in /tmp/tmp.XwwD8IOl5u/cacert.pem.
Installed private key to /var/lib/openvas/private/CA/cakey.pem.
Installed certificate to /var/lib/openvas/CA/cacert.pem.
Generated private key in /tmp/tmp.XwwD8IOl5u/serverkey.pem.
Generated certificate request in /tmp/tmp.XwwD8IOl5u/serverrequest.pem.
[...]
znc_detect.nasl
znc_detect.nasl.asc
zone_alarm_local_dos.nasl
zone_alarm_local_dos.nasl.asc
OpenVAS community feed server - http://www.openvas.org/
This service is hosted by Greenbone Networks - http://www.greenbone.net/

All transactions are logged.

If you have any questions, please use the OpenVAS mailing lists
or the OpenVAS IRC chat. See http://www.openvas.org/ for details.

By using this service you agree to our terms and conditions.

Only one sync per time, otherwise the source ip will be blocked.

receiving incremental file list
./
COPYING
          1,493 100%    1.42MB/s    0:00:00 (xfr#1, to-chk=84/86)
COPYING.asc
            181 100%  176.76kB/s    0:00:00 (xfr#2, to-chk=83/86)
nvdcve-2.0-2002.xml

...

sha1sums
          2,002 100%    2.34kB/s    0:00:00 (xfr#33, to-chk=2/36)
timestamp
             13 100%    0.02kB/s    0:00:00 (xfr#34, to-chk=1/36)
timestamp.asc
            181 100%    0.21kB/s    0:00:00 (xfr#35, to-chk=0/36)

sent 719 bytes  received 41,272,464 bytes  398,774.71 bytes/sec
total size is 41,260,051  speedup is 1.00
/usr/sbin/openvasmd
User created with password 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxx'.

After the setup completes, you will find two listening TCP ports

9390 and 9392

Port 9392 is likely the one of most interest to you as it is the web interface for OpenVAS. You can open the web interface using your browser of choice.

# ss -lnt4
State      Recv-Q Send-Q Local Address:Port               Peer Address:Port
LISTEN     0      128     127.0.0.1:9390                        *:*
LISTEN     0      128     127.0.0.1:9392                        *:*

# firefox https://127.0.0.1:9392

Despite reminding people to save the default password generated during setup, it still sometimes gets misplaced. Fortunately, the “openvasmd” utility can be used to create and remove users as well as reset their passwords.

root@kali:~# openvasmd --create-user=dookie
User created with password 'yyyyyyyy-yyyy-yyyy-yyyy-yyyyyyyyyy'.
root@kali:~# openvasmd --get-users
admin
dookie
root@kali:~# openvasmd --user=dookie --new-password=s3cr3t
root@kali:~# openvasmd --user=admin --new-password=sup3rs3cr3t

OpenVAS signatures can be updated with the “openvas-feed-update” utility.

root@kali:~# openvas-feed-update
Updating OpenVas Feeds
OpenVAS community feed server - http://www.openvas.org/
This service is hosted by Greenbone Networks - http://www.greenbone.net/

All transactions are logged.

If you have any questions, please use the OpenVAS mailing lists
or the OpenVAS IRC chat. See http://www.openvas.org/ for details.
[...]

Verify the certificates that are configured for OpenVAS.

root@kali:~# openvas-manage-certs -V
OK: Directory for keys (/var/lib/openvas/private/CA) exists.
OK: Directory for certificates (/var/lib/openvas/CA) exists.
OK: CA key found in /var/lib/openvas/private/CA/cakey.pem
OK: CA certificate found in /var/lib/openvas/CA/cacert.pem
OK: CA certificate verified.
OK: Certificate /var/lib/openvas/CA/servercert.pem verified.
OK: Certificate /var/lib/openvas/CA/clientcert.pem verified.

OK: Your OpenVAS certificate infrastructure passed validation.

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