Add SCCM AdminService Kerberos relay attack - #76
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This adds support for relaying captured Kerberos tickets to the SCCM AdminService API (/AdminService/wmi/SMS_Admin) to promote an arbitrary domain account to Full SCCM Administrator.
The original technique was documented by SpecterOps in this blogpost and relied on NTLM relay. Starting with ConfigMgr 2509, Microsoft officially blocks NTLM authentication on the AdminService entirely. The endpoint still accepts Kerberos though, which Synacktiv showed can be abused via coercion + Kerberos reflection. This PR implements this.
What changed:
--adminserviceflag (plus--logonname,--displayname,--objectsid) options to trigger the attacklib/attacks/sccmadminserviceattack.py: attack class that handles the authenticated POST to SMS_Adminlib/clients/httprelayclient.py: skips the initial GET so the single-use Kerberos token isn't wasted before the actual attack requestlib/servers/smbrelayserver.py/httprelayserver.py: dropped SPN hostname matching since coerced connections in the case of self relay can arrive with Unicode-mangled hostnames that would never match the configured target anyway