Why does smbclient and enum4linux can't identify Samba version in Kioptrix level 1?

I've been trying kioptrix-level-1 exercise at https://www.vulnhub.com/entry/kioptrix-level-1-1,22/ and wondering why smbclient can't identify the Samba version? smbclient version 4.11.5-Debian wolf@linux:~$ smbclient -V Version 4.11.5-Debian wolf@linux:~$ e.g. wolf@linux:~$ smbclient -L 10.10.10.10 Server does not support EXTENDED_SECURITY but 'client use spnego = yes' and 'client ntlmv2 auth = yes' is set Anonymous login successful Enter WORKGROUP\wolf's password: Sharename Type Comment --------- ---- ------- IPC$ IPC IPC Service (Samba Server) ADMIN$ IPC IPC Service (Samba Server) Reconnecting with SMB1 for workgroup listing. Server does not support EXTENDED_SECURITY but 'client use spnego = yes' and 'client ntlmv2 auth = yes' is set Anonymous login successful Server Comment --------- ------- KIOPTRIX Samba Server Workgroup Master --------- ------- MYGROUP KIOPTRIX wolf@linux:~$ enum4linux attempt also didn't reveal the Samba's version number wolf@linux:/etc/samba$ enum4linux 10.10.10.10 Starting enum4linux v0.8.9 ( http://labs.portcullis.co.uk/application/enum4linux/ ) on Thu May 21 00:04:57 2020 ========================== | Target Information | ========================== Target ........... 10.10.10.10 RID Range ........ 500-550,1000-1050 Username ......... '' Password ......... '' Known Usernames .. administrator, guest, krbtgt, domain admins, root, bin, none ====================================================== | Enumerating Workgroup/Domain on 10.10.10.10 | ====================================================== [+] Got domain/workgroup name: MYGROUP ============================================== | Nbtstat Information for 10.10.10.10 | ============================================== Looking up status of 10.10.10.10 KIOPTRIX - B Workstation Service KIOPTRIX - B Messenger Service KIOPTRIX - B File Server Service ..__MSBROWSE__. - B Master Browser MYGROUP - B Domain/Workgroup Name MYGROUP - B Master Browser MYGROUP - B Browser Service Elections MAC Address = 00-00-00-00-00-00 ======================================= | Session Check on 10.10.10.10 | ======================================= [+] Server 10.10.10.10 allows sessions using username '', password '' ============================================= | Getting domain SID for 10.10.10.10 | ============================================= Domain Name: MYGROUP Domain Sid: (NULL SID) [+] Can't determine if host is part of domain or part of a workgroup ======================================== | OS information on 10.10.10.10 | ======================================== Use of uninitialized value $os_info in concatenation (.) or string at ./enum4linux.pl line 464. [+] Got OS info for 10.10.10.10 from smbclient: [+] Got OS info for 10.10.10.10 from srvinfo: KIOPTRIX Wk Sv PrQ Unx NT SNT Samba Server platform_id : 500 os version : 4.5 server type : 0x9a03 =============================== | Users on 10.10.10.10 | =============================== Use of uninitialized value $users in print at ./enum4linux.pl line 874. Use of uninitialized value $users in pattern match (m//) at ./enum4linux.pl line 877. Use of uninitialized value $users in print at ./enum4linux.pl line 888. Use of uninitialized value $users in pattern match (m//) at ./enum4linux.pl line 890. =========================================== | Share Enumeration on 10.10.10.10 | =========================================== Sharename Type Comment --------- ---- ------- IPC$ IPC IPC Service (Samba Server) ADMIN$ IPC IPC Service (Samba Server) Reconnecting with SMB1 for workgroup listing. Server Comment --------- ------- KIOPTRIX Samba Server Workgroup Master --------- ------- MYGROUP KIOPTRIX [+] Attempting to map shares on 10.10.10.10 //10.10.10.10/IPC$ [E] Can't understand response: NT_STATUS_NETWORK_ACCESS_DENIED listing \* //10.10.10.10/ADMIN$ [E] Can't understand response: tree connect failed: NT_STATUS_WRONG_PASSWORD ====================================================== | Password Policy Information for 10.10.10.10 | ====================================================== [E] Unexpected error from polenum: [+] Attaching to 10.10.10.10 using a NULL share [+] Trying protocol 139/SMB... [!] Protocol failed: SMB SessionError: 0x5 [+] Trying protocol 445/SMB... [!] Protocol failed: [Errno Connection error (10.10.10.10:445)] [Errno 111] Connection refused [+] Retieved partial password policy with rpcclient: Password Complexity: Disabled Minimum Password Length: 0 ================================ | Groups on 10.10.10.10 | ================================ [+] Getting builtin groups: group:[Administrators] rid:[0x220] group:[Users] rid:[0x221] group:[Guests] rid:[0x222] group:[Power Users] rid:[0x223] group:[Account Operators] rid:[0x224] group:[System Operators] rid:[0x225] group:[Print Operators] rid:[0x226] group:[Backup Operators] rid:[0x227] group:[Replicator] rid:[0x228] [+] Getting builtin group memberships: Group 'Users' (RID: 545) has member: Couldn't find group Users Group 'Guests' (RID: 546) has member: Couldn't find group Guests Group 'Replicator' (RID: 552) has member: Couldn't find group Replicator Group 'Account Operators' (RID: 548) has member: Couldn't find group Account Operators Group 'Print Operators' (RID: 550) has member: Couldn't find group Print Operators Group 'Power Users' (RID: 547) has member: Couldn't find group Power Users Group 'System Operators' (RID: 549) has member: Couldn't find group System Operators Group 'Administrators' (RID: 544) has member: Couldn't find group Administrators Group 'Backup Operators' (RID: 551) has member: Couldn't find group Backup Operators [+] Getting local groups: group:[sys] rid:[0x3ef] group:[tty] rid:[0x3f3] group:[disk] rid:[0x3f5] group:[mem] rid:[0x3f9] group:[kmem] rid:[0x3fb] group:[wheel] rid:[0x3fd] group:[man] rid:[0x407] group:[dip] rid:[0x439] group:[lock] rid:[0x455] group:[users] rid:[0x4b1] group:[slocate] rid:[0x413] group:[floppy] rid:[0x40f] group:[utmp] rid:[0x415] [+] Getting local group memberships: [+] Getting domain groups: group:[Domain Admins] rid:[0x200] group:[Domain Users] rid:[0x201] [+] Getting domain group memberships: Group 'Domain Users' (RID: 513) has member: Couldn't find group Domain Users Group 'Domain Admins' (RID: 512) has member: Couldn't find group Domain Admins I've been looking at other write up such https://blog.roskyfrosky.com/vulnhub/2017/04/01/Kioptrix1.0-vulnhub.html and found that they don't have this kind of issue. or https://blog.bladeism.com/kioptrix-level-1/ enum4linux 192.168.33.133 ========================== | Target Information | ========================== Target ……….. 192.168.33.133 RID Range …….. 500-550,1000-1050 Username ……… ” Password ……… ” Known Usernames .. administrator, guest, krbtgt, domain admins, root, bin, none ====================================================== | Enumerating Workgroup/Domain on 192.168.33.133 | ====================================================== [+] Got domain/workgroup name: MYGROUP ============================================== | Nbtstat Information for 192.168.33.133 | ============================================== Looking up status of 192.168.33.133 KIOPTRIX – B Workstation Service KIOPTRIX – B Messenger Service KIOPTRIX – B File Server Service ..__MSBROWSE__. – B Master Browser MYGROUP – B Domain/Workgroup Name MYGROUP – B Master Browser MYGROUP – B Browser Service Elections MAC Address = 00-00-00-00-00-00 ======================================= | Session Check on 192.168.33.133 | ======================================= [+] Server 192.168.33.133 allows sessions using username ”, password ” ============================================= | Getting domain SID for 192.168.33.133 | ============================================= Domain Name: MYGROUP Domain Sid: (NULL SID) [+] Can’t determine if host is part of domain or part of a workgroup ======================================== | OS information on 192.168.33.133 | ======================================== [+] Got OS info for 192.168.33.133 from smbclient: Domain=[MYGROUP] OS=[Unix] Server=[Samba 2.2.1a] [+] Got OS info for 192.168.33.133 from srvinfo: KIOPTRIX Wk Sv PrQ Unx NT SNT Samba Server platform_id : 500 os version : 4.5 server type : 0x9a03 =============================== | Users on 192.168.33.133 | =============================== Use of uninitialized value $users in print at ./enum4linux.pl line 874. Use of uninitialized value $users in pattern match (m//) at ./enum4linux.pl line 877. Use of uninitialized value $users in print at ./enum4linux.pl line 888. Use of uninitialized value $users in pattern match (m//) at ./enum4linux.pl line 890. =========================================== | Share Enumeration on 192.168.33.133 | =========================================== WARNING: The “syslog” option is deprecated Domain=[MYGROUP] OS=[Unix] Server=[Samba 2.2.1a] Domain=[MYGROUP] OS=[Unix] Server=[Samba 2.2.1a] Sharename Type Comment ——— —- ——- IPC$ IPC IPC Service (Samba Server) ADMIN$ IPC IPC Service (Samba Server) Server Comment ——— ——- KIOPTRIX Samba Server Workgroup Master ——— ——- MYGROUP KIOPTRIX WORKGROUP BLADEISM [+] Attempting to map shares on 192.168.33.133 //192.168.33.133/IPC$ [E] Can’t understand response: WARNING: The “syslog” option is deprecated Domain=[MYGROUP] OS=[Unix] Server=[Samba 2.2.1a] NT_STATUS_NETWORK_ACCESS_DENIED listing \* //192.168.33.133/ADMIN$ [E] Can’t understand response: WARNING: The “syslog” option is deprecated Domain=[MYGROUP] OS=[Unix] Server=[Samba 2.2.1a] tree connect failed: NT_STATUS_WRONG_PASSWORD