[Bug 1572876] Re: After Samba upgrade can't access unpassworded windows share

[Reinhard]

I am using smbpassword -i <remotehost> -U <user> to sync samba & linux password store in an LDAP - directory.
This worked well until samba-4.1.6. 
In samba 4.3.9 ill get following error message:
smb_signing_good: BAD SIG: seq 1
Could not connect to machine <remotehost>: NT_STATUS_ACCESS_DENIED

Downgrade to 4.1.6 brings password sync to work again:
aptitude -y install samba-libs=2:4.1.6+dfsg-1ubuntu2 libsmbclient=2:4.1.6+dfsg-1ubuntu2 libwbclient0=2:4.1.6+dfsg-1ubuntu2 python-samba=2:4.1.6+dfsg-1ubuntu2 samba=2:4.1.6+dfsg-1ubuntu2 samba-common=2:4.1.6+dfsg-1ubuntu2 samba-common-bin=2:4.1.6+dfsg-1ubuntu2 samba-dsdb-modules=2:4.1.6+dfsg-1ubuntu2 samba-vfs-modules=2:4.1.6+dfsg-1ubuntu2 smbclient=2:4.1.6+dfsg-1ubuntu2 libldb1=1:1.1.16-1 python-ldb=1:1.1.16-1 winbind=2:4.1.6+dfsg-1ubuntu2 libpam-winbind=2:4.1.6+dfsg-1ubuntu2 libnss-winbind=2:4.1.6+dfsg-1ubuntu2

an errormessage from :
>> smbpasswd -D 10 -r smb01 -U teacher01
is included



** Attachment added: "smbpasswd.log"
   https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1572876/+attachment/4668687/+files/smbpasswd.log

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Title:
  After Samba upgrade can't access unpassworded windows share

Status in samba:
  Unknown
Status in samba package in Ubuntu:
  Fix Released

Bug description:
  Ubuntu 14.04.4 LTS X64
  On 19th april got an update. mainly there was Samba's update, after that, can't  access  anymore to unpassworded share on Win7, login and password requested, but there is no password

  smbclient -N -L 192.168.1.55
  WARNING: The "syslog" option is deprecated
  NTLMSSP packet check failed due to short signature (0 bytes)!
  NTLMSSP NTLM2 packet check failed due to invalid signature!
  Anonymous login successful
  Domain=[VORON] OS=[Windows 7 Professional 7601 Service Pack 1] Server=[Windows 7 Professional 6.1]

   Sharename       Type      Comment
   ---------       ----      -------
  Error returning browse list: NT_STATUS_ACCESS_DENIED
  Connection to 192.168.1.55 failed (Error NT_STATUS_RESOURCE_NAME_NOT_FOUND)
  NetBIOS over TCP disabled -- no workgroup available
  ========================
  upgrade log:
  Start-Date: 2016-04-19  09:04:37
  Commandline: aptdaemon role='role-commit-packages' sender=':1.258'
  Upgrade: python-samba:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), winbind:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), tdb-tools:amd64 (1.2.12-1, 1.3.8-0ubuntu0.14.04.1), samba:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), python-tdb:amd64 (1.2.12-1, 1.3.8-0ubuntu0.14.04.1), libtevent0:amd64 (0.9.19-1, 0.9.26-0ubuntu0.14.04.1), samba-dsdb-modules:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), libnss-winbind:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), samba-common-bin:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), libldb1:amd64 (1.1.16-1ubuntu0.1, 1.1.24-0ubuntu0.14.04.1), libtdb1:amd64 (1.2.12-1, 1.3.8-0ubuntu0.14.04.1), samba-libs:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), virtualbox-5.0:amd64 (5.0.16-105871~Ubuntu~trusty, 5.0.18-106667~Ubuntu~trusty), smbclient:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), libtalloc2:amd64 (2.1.0-1, 2.1.5-0ubuntu0.14.04.1), python-talloc:amd64 (2.1.0-1, 2.1.5-0ubuntu0.14.04.1), libpam-winbind:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), libwbclient0:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), samba-vfs-modules:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), python-ldb:amd64 (1.1.16-1ubuntu0.1, 1.1.24-0ubuntu0.14.04.1), samba-common:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2), libsmbclient:amd64 (4.1.6+dfsg-1ubuntu2.14.04.13, 4.3.8+dfsg-0ubuntu0.14.04.2)

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