mssqlserver


Checking for user privileges of the mssqlserver account after performing the manual enumeration of the PRIMARY VIRTUAL host

PS C:\Windows\system32> whoami /all
 
USER INFORMATION
----------------
 
User Name              SID                                                            
====================== ===============================================================
nt service\mssqlserver S-1-5-80-3880718306-3832830129-1677859214-2598158968-1052248003
 
 
GROUP INFORMATION
-----------------
 
Group Name                                 Type             SID          Attributes                                        
========================================== ================ ============ ==================================================
Mandatory Label\High Mandatory Level       Label            S-1-16-12288                                                   
Everyone                                   Well-known group S-1-1-0      Mandatory group, Enabled by default, Enabled group
BUILTIN\Pre-Windows 2000 Compatible Access Alias            S-1-5-32-554 Mandatory group, Enabled by default, Enabled group
BUILTIN\Users                              Alias            S-1-5-32-545 Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\SERVICE                       Well-known group S-1-5-6      Mandatory group, Enabled by default, Enabled group
CONSOLE LOGON                              Well-known group S-1-2-1      Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\Authenticated Users           Well-known group S-1-5-11     Mandatory group, Enabled by default, Enabled group
NT AUTHORITY\This Organization             Well-known group S-1-5-15     Mandatory group, Enabled by default, Enabled group
LOCAL                                      Well-known group S-1-2-0      Mandatory group, Enabled by default, Enabled group
NT SERVICE\ALL SERVICES                    Well-known group S-1-5-80-0   Mandatory group, Enabled by default, Enabled group
 
 
PRIVILEGES INFORMATION
----------------------
 
Privilege Name                Description                               State   
============================= ========================================= ========
SeAssignPrimaryTokenPrivilege Replace a process level token             Disabled
SeIncreaseQuotaPrivilege      Adjust memory quotas for a process        Disabled
SeMachineAccountPrivilege     Add workstations to domain                Disabled
SeChangeNotifyPrivilege       Bypass traverse checking                  Enabled 
SeImpersonatePrivilege        Impersonate a client after authentication Enabled 
SeCreateGlobalPrivilege       Create global objects                     Enabled 
SeIncreaseWorkingSetPrivilege Increase a process working set            Disabled
 
ERROR: Unable to get user claims information.

The mssqlserver account is a service account belonging to the NT AUTHORITY\SERVICE group and has SeAssignPrimaryTokenPrivilege, SeImpersonatePrivilege, and SeMachineAccountPrivilege This calls for the potato exploit for privilege escalation