Release Announcements ===================== This is the first release candidate of Samba 4.20. This is *not* intended for production environments and is designed for testing purposes only. Please report any defects via the Samba bug reporting system at https://bugzilla.samba.org/. Samba 4.20 will be the next version of the Samba suite. UPGRADING ========= NEW FEATURES/CHANGES ==================== New Minimum MIT Krb5 version for Samba AD Domain Controller ----------------------------------------------------------- Samba now requires MIT 1.21 when built against a system MIT Krb5 and acting as an Active Directory DC. This addresses the issues that were fixed in CVE-2022-37967 (KrbtgtFullPacSignature) and ensures that Samba builds against the MIT version that allows us to avoid that attack. Removed dependency on Perl JSON module -------------------------------------- Distributions are advised that the Perl JSON package is no longer required by Samba builds that use the imported Heimdal. The build instead uses Perl's JSON::PP built into recent perl5 versions. Current lists of packages required by Samba for major distributions are found in the bootstrap/generated-dists/ directory of a Samba source tree. While there will be some differences - due to features chosen by packagers - comparing these lists with the build dependencies in a package may locate other dependencies we no longer require. samba-tool user getpassword / syncpasswords ;rounds= change ----------------------------------------------------------- The password access tool "samba-tool user getpassword" and the password sync tool "samba-tool user syncpasswords" allow attributes to be chosen for output, and accept parameters like pwdLastSet;format=GeneralizedTime These attributes then appear, in the same format, as the attributes in the LDIF output. This was not the case for the ;rounds= parameter of virtualCryptSHA256 and virtualCryptSHA512, for example as --attributes="virtualCryptSHA256;rounds=50000" This release makes the behaviour consistent between these two features. Installations using GPG-encrypted passwords (or plaintext storage) and the rounds= option, will find the output has changed from: virtualCryptSHA256: {CRYPT}$5$rounds=2561$hXem.M9onhM9Vuix$dFdSBwF to: virtualCryptSHA256;rounds=2561: {CRYPT}$5$rounds=2561$hXem.M9onhM9Vuix$dFdSBwF Group Managed service account client-side features -------------------------------------------------- samba-tool has been extended to provide client-side support for Group Managed Service accounts. These accounts have passwords that change automatically, giving the advantages of service isolation without risk of poor, unchanging passwords. Where possible, Samba's existing samba-tool password handling commands, which in the past have only operated against the local sam.ldb have been extended to permit operation against a remote server with authenticated access to "-H ldap://$DCNAME" Supported operations include: - reading the current and previous gMSA password via "samba-tool user getpassword" - writing a Kerberos Ticket Granting Ticket (TGT) to a local credentials cache with a new command "samba-tool user get-kerberos-ticket" New Windows Search Protocol Client ---------------------------------- Samba now by default builds new experimental Windows Search Protocol (WSP) command line client "wspsearch" The "wspsearch" cmd-line utility allows a WSP search request to be sent to a server (such as a windows server) that has the (WSP) Windows Search Protocol service configured and enabled. For more details see the wspsearch man page. Allow 'smbcacls' to save/restore DACLs to file -------------------------------------------- 'smbcacls' has been extended to allow DACLs to be saved and restored to/from a file. This feature mimics the functionality that windows cmd line tool 'icacls.exe' provides. Additionally files created either by 'smbcalcs' or 'icacls.exe' are interchangeable and can be used by either tool as the same file format is used. New options added are: - '--save savefile' Saves DACLs in sddl format to file - '--recurse' Performs the '--save' operation above on directory and all files/directories below. - '--restore savefile' Restores the stored DACLS to files in directory REMOVED FEATURES ================ Get locally logged on users from utmp ------------------------------------- The Workstation Service Remote Protocol [MS-WKST] calls NetWkstaGetInfo level 102 and NetWkstaEnumUsers level 0 and 1 return the list of locally logged on users. Samba was getting the list from utmp, which is not Y2038 safe. This feature has been completely removed and Samba will always return an empty list. smb.conf changes ================ Parameter Name Description Default -------------- ----------- ------- smb3 unix extensions Per share - KNOWN ISSUES ============ https://wiki.samba.org/index.php/Release_Planning_for_Samba_4.20#Release_blocking_bugs ####################################### Reporting bugs & Development Discussion ####################################### Please discuss this release on the samba-technical mailing list or by joining the #samba-technical:matrix.org matrix room, or #samba-technical IRC channel on irc.libera.chat If you do report problems then please try to send high quality feedback. If you don't provide vital information to help us track down the problem then you will probably be ignored. All bug reports should be filed under the Samba 4.1 and newer product in the project's Bugzilla database (https://bugzilla.samba.org/). ====================================================================== == Our Code, Our Bugs, Our Responsibility. == The Samba Team ======================================================================