[Samba] invalid NTLMSSP_MIC / SPNEGO login failed: NT_STATUS_INVALID_PARAMETER
gaiseric.vandal at gmail.com
Wed Nov 2 14:19:53 UTC 2016
With the patches for BADLOCK I had to upgrade/patch my domain
controllers first then upgrade the member servers.
In addition to security fixes, some of the signing defaults changed so I
think I had to explicitly set
server signing = No
On 10/24/16 14:25, Alex Crow via samba wrote:
> On 24/10/16 18:03, Boris S. via samba wrote:
>> since I upgraded my NT4 domain Samba 4.2.11 to 4.2.14 I can no longer
>> when I access any share.
>> After that I even upgraded to Samba 4.4.5 but still get the same error:
>> [2016/10/15 04:42:19.786198, 2]
>> check_ntlm_password: authentication for user [xx] -> [xx] -> [xx]
>> [2016/10/15 04:42:19.789933, 1]
>> ntlmssp_server_postauth: invalid NTLMSSP_MIC for user=[xx]
>> domain=[XXXXXXX] workstation=[XXXXX]
>> [2016/10/15 04:42:19.789982, 1] ../lib/util/util.c:559(dump_data)
>>  97 BD D0 A6 D7 16 E4 0A 59 33 62 ED CC 6A 35 04 ........
>> [2016/10/15 04:42:19.790035, 1] ../lib/util/util.c:559(dump_data)
>>  F2 85 BB 00 46 11 89 C4 84 E3 2C 4C 5D FA F4 6A ....F...
>> [2016/10/15 04:42:19.790095, 2]
>> SPNEGO login failed: NT_STATUS_INVALID_PARAMETER
>> Server: FreeBSD 10.3/64 bit
>> Clients: Windows 7 64bit
>> When I downgrade to 4.2.11 everything works again.
>> An upgrade to DC is currently not an option so I need to stick to NT4
>> PDC for a while.
>> I duplicated the whole server to a VM, so I could test anything and
>> wouldn't harm the production server.
>> Any idea what might the cause?
>> Do you need more Information?
>> My smb.conf:
>> workgroup = XXXXXXX
>> netbios name = SERVER
>> unix password sync = false
>> max log size = 100
>> unix extensions = no
>> log level = 2 vfs:2
>> map to guest = Bad User
>> server max protocol = smb2
>> server min protocol = smb2
>> passdb backend = tdbsam
>> unix charset = ISO8859-1
>> dos charset = CP1252
>> bind interfaces only = yes
>> hosts allow = 192.168.255. 127.
>> acl allow execute always = True
>> load printers = no
>> log file = /var/log/samba4/log.%m
>> log level = 2
>> security = user
>> encrypt passwords = yes
>> interfaces = em0, lo0
>> local master = yes
>> os level = 65
>> domain master = yes
>> preferred master = yes
>> domain logons = yes
>> wins support = yes
>> wins proxy = yes
>> dns proxy = no
> I have had pretty much the same issue against CentOS 6.x/Samba 3.x DCs
> from Samba 4.2.x (CentOS) and 4.4.x (Sernet) File servers.
> Please look at BZ#12393 and add your findings:
> We upgraded our DCs to 4.4.x and it went away. Are you /really/ still
> running actual NT4 DCs? Wow....
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