Thanks, indeed!

smbclient //*/IPC$ -U admin%admin
Domain=[D] OS=[Unix] Server=[Samba 3.6.23-35.el6_8]
smb: \> 


Matteo

> On 08 Aug 2016, at 23:19, Eero Volotinen <[email protected]> wrote:
> 
> try this
> 
> smbclient //ipaddress/IPC$ -U admin%admin
> 
> 
> 
> 2016-08-08 23:11 GMT+03:00 Eero Volotinen <[email protected] 
> <mailto:[email protected]>>:
> This plugin is used to detect issue:
> 
> http://plugins.openvas.org/nasl.php?oid=804449 
> <http://plugins.openvas.org/nasl.php?oid=804449>
> 
> Looks like it's connecting to IPC$ share.
> 
> --
> Eero
> 
> 2016-08-08 22:01 GMT+03:00 Corti Matteo (ID BD) <[email protected] 
> <mailto:[email protected]>>:
> Dear Eero
> 
> I appreciate the help but the question is not how to secure/firewall the 
> server. The question is why OpenVAS is telling that is possible to connect as 
> admin:admin and I cannot verify the problem.
> 
> What is tested? How can I reproduce the problem? I checked the configuration 
> and the admin password is *not* admin.
> 
> Could it be that the plugin is reporting a false positive?
> 
> Matteo
> 
>> On 08 Aug 2016, at 20:49 , Eero Volotinen <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> Well. exposing samba protocol to internet without ipsec is not wise thing to 
>> do. It might be also problem with NVT.
>> 
>> Eero
>> 
>> 2016-08-08 21:45 GMT+03:00 Corti Matteo (ID BD) <[email protected] 
>> <mailto:[email protected]>>:
>> Hi
>> 
>>> On 08 Aug 2016, at 16:42 , Eero Volotinen <[email protected] 
>>> <mailto:[email protected]>> wrote:
>>> 
>>> You are sensoring the input, so it's bit hard to guess the parameters.
>> 
>> Just the IP address. If the server is really vulnerable it would be unwise 
>> to tell it to the whole world
>>> 
>>> try something like smbclient //ip.address/sharename -U admin%admin or
>>> smbclient //ip.address/c$ -U admin%admin
>> 
>> $  smbclient //*/climbing -U admin%admin
>> Domain=[D] OS=[Unix] Server=[Samba 3.6.23-35.el6_8]
>> tree connect failed: NT_STATUS_ACCESS_DENIED
>> $ smbclient //*/c$ -U admin%admin
>> Domain=[D] OS=[Unix] Server=[Samba 3.6.23-35.el6_8]
>> tree connect failed: NT_STATUS_BAD_NETWORK_NAME
>> 
>> It is not a problem with the smbclient syntax. I can also try to mount the 
>> share with an OS X or Windows machine.
>> 
>> Same result.
>> 
>> Matteo
>> 
>>> 
>>> 2016-08-08 17:22 GMT+03:00 Corti Matteo (ID BD) <[email protected] 
>>> <mailto:[email protected]>>:
>>> Hi
>>> 
>>> it is strange but OK according to the man page
>>> 
>>>   smbclient {servicename} [password] [-b <buffer size>] [-d debuglevel] 
>>> [-e] [-D Directory] [-U username] [-W workgroup] [-M <netbios name>] [-m 
>>> maxprotocol] [-A authfile] [-N] [-C] [-g]
>>>         [-l log-basename] [-I destinationIP] [-E] [-c <command string>] [-i 
>>> scope] [-O <socket options>] [-p port] [-R <name resolve order>] [-s <smb 
>>> config file>] [-t <per-operation timeout in seconds>]
>>>         [-T<c|x>IXFqgbNan] [-k]
>>> 
>>> In any case also supplying the password manually gives the same result
>>> 
>>> $ smbclient //*/climbing -U admin
>>> Enter admin's password: 
>>> Domain=[D] OS=[Unix] Server=[Samba 3.6.23-35.el6_8]
>>> tree connect failed: NT_STATUS_ACCESS_DENIED
>>> 
>>> Matteo
>>> 
>>> 
>>>> On 08 Aug 2016, at 16:18, Eero Volotinen <[email protected] 
>>>> <mailto:[email protected]>> wrote:
>>>> 
>>>> Your smbclient syntax looks incorrect. Please check out the manpage..
>>>> 
>>>> Eero
>>>> 
>>>> 
>>>> 8.8.2016 5.14 ip. "Corti Matteo (ID BD)" <[email protected] 
>>>> <mailto:[email protected]>> kirjoitti:
>>>> Hi
>>>> 
>>>> a recent scan shows a lot of hosts with
>>>> 
>>>>     SMB Brute Force Logins With Default Credentials (OID: 
>>>> 1.3.6.1.4.1.25623.1.0.804449) 
>>>> <https://matteo.ethz.ch:9392/omp?cmd=get_info&info_type=nvt&info_id=1.3.6.1.4.1.25623.1.0.804449&token=8625b2bf-59ca-4554-917f-e9d27a4e09c4>
>>>> 
>>>> with the following result
>>>> 
>>>> Vulnerability Detection Result
>>>> It was possible to login with the following credentials via the SMB 
>>>> protocol. <User>:<Pass↵
>>>> word>
>>>> 
>>>> admin:admin
>>>> 
>>>> I am trying to check with smbclient and I don’t succeed
>>>> 
>>>> $ smbclient //***.***.***.***/climbing admin -U admin
>>>> Domain=[D] OS=[Unix] Server=[Samba 3.6.23-35.el6_8]
>>>> tree connect failed: NT_STATUS_ACCESS_DENIED
>>>> 
>>>> What am I missing?
>>>> 
>>>> Regards
>>>> 
>>>> Matteo
>>>> 
>>>> -- 
>>>> ETH Zurich, Dr. Matteo Corti, Leiter ID Basisdienste
>>>> STB H 11.1, Stampfenbachstrasse 69, 8092 Zurich
>>>> Tel +41 44 63 27944, http://www.id.ethz.ch <http://www.id.ethz.ch/>
>>>> 
>>>> _______________________________________________
>>>> Openvas-discuss mailing list
>>>> [email protected] 
>>>> <mailto:[email protected]>
>>>> https://lists.wald.intevation.org/cgi-bin/mailman/listinfo/openvas-discuss 
>>>> <https://lists.wald.intevation.org/cgi-bin/mailman/listinfo/openvas-discuss>
>>> 
>>> -- 
>>> ETH Zurich, Dr. Matteo Corti, Leiter ID Basisdienste
>>> STB H 11.1, Stampfenbachstrasse 69, 8092 Zurich
>>> Tel +41 44 63 27944, http://www.id.ethz.ch <http://www.id.ethz.ch/>
>>> 
>> 
>> 
>> -- 
>> ETH Zurich, Dr. Matteo Corti, Leiter ID Basisdienste
>> STB H 11.1, Stampfenbachstrasse 69, 8092 Zurich
>> Tel +41 44 63 27944, http://www.id.ethz.ch <http://www.id.ethz.ch/>
>> 
> 
> -- 
> ETH Zurich, Dr. Matteo Corti, Leiter ID Basisdienste
> STB H 11.1, Stampfenbachstrasse 69, 8092 Zurich
> Tel +41 44 63 27944, http://www.id.ethz.ch <http://www.id.ethz.ch/>
> 
> 

-- 
ETH Zurich, Dr. Matteo Corti, Leiter ID Basisdienste
STB H 11.1, Stampfenbachstrasse 69, 8092 Zurich
Tel +41 44 63 27944, http://www.id.ethz.ch

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