With DCSync privileges enabled, impersonate a Domain Controller and request the password hashes of any user in the domain, including the Administrator. Use Impacket's secretsdump.py . secretsdump.py htb.local/attacker:Password123!@10.10.10.161 Use code with caution.
The results reveal that we have gained privileges.
Now that you have a list of valid users, test them for AS-REP Roasting. This attack targets users who do not require Kerberos pre-authentication, allowing an attacker to request a ticket and crack the password hash offline. Use the Impacket tool GetNPUsers.py :
exploitation. The primary path involves enumerating users without passwords, performing an AS-REP Roasting attack, and leveraging BloodHound to find a path to Domain Admin via group memberships. 🛠️ Phase 1: Enumeration Start by identifying open ports and services. Nmap Scan: forest hackthebox walkthrough best
If a user has the DONT_REQ_PREAUTH flag set (disabled pre-authentication), we can request an encrypted timestamp (AS-REP) and crack it offline like a hash.
kerbrute userenum --dc 10.10.10.161 -d htb.local /usr/share/seclists/Usernames/xato-net-10-million-usernames.txt Use code with caution. Kerbrute identifies several valid users, including: sebastien lucas abigail andy svc-alfresco Phase 3: Initial Access (AS-REP Roasting)
<Forest_IP> htb.local FOREST.htb.local FOREST The results reveal that we have gained privileges
With DCSync rights, you can impersonate a Domain Controller to request password hashes for any user.
Because your new user now has WriteDACL privileges on the domain domain object, you can grant yourself permissions. This allows you to execute a DCSync attack to dump all password hashes from the Domain Controller.
Because LDAP is open, you can enumerate domain information without authentication using enum4linux-ng or rpcclient . enum4linux-ng -A Use code with caution. This step reveals the internal domain name: HTB.LOCAL . Phase 2: Weaponization and User Access Use the Impacket tool GetNPUsers
The script successfully dumps the NTLM hashes for every user in the Active Directory database, including the account. Pass-the-Hash for Full Control
for users.
: Used for AS-REP Roasting and dumping domain secrets.
Exploiting a null session via rpcclient allows for the enumeration of domain users without credentials.