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# -*- coding: utf-8 -*-
# Original code from https://github.com/joren485/PyWinPrivEsc/blob/master/RunAsSystem.py
import sys
import traceback
from foreign.client_handling.lazagne.config.write_output import print_debug
from foreign.client_handling.lazagne.config.winstructure import *
import os
def get_token_info(hToken):
"""
Retrieve SID and user owner from Token
"""
dwSize = DWORD(0)
pStringSid = LPWSTR()
TokenUser = 1
if GetTokenInformation(hToken, TokenUser, byref(TOKEN_USER()), 0, byref(dwSize)) == 0:
address = LocalAlloc(0x0040, dwSize)
if address:
GetTokenInformation(hToken, TokenUser, address, dwSize, byref(dwSize))
pToken_User = cast(address, POINTER(TOKEN_USER))
if pToken_User.contents.User.Sid:
ConvertSidToStringSid(pToken_User.contents.User.Sid, byref(pStringSid))
owner, domaine, _ = LookupAccountSidW(None, pToken_User.contents.User.Sid)
if pStringSid:
sid = pStringSid.value
LocalFree(address)
return sid, owner
return None, None
def enable_privilege(privilegeStr, hToken=None):
"""
Enable Privilege on token, if no token is given the function gets the token of the current process.
"""
if hToken == None:
hToken = HANDLE(INVALID_HANDLE_VALUE)
if not hToken:
return False
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, False, os.getpid())
if not hProcess:
return False
OpenProcessToken(hProcess, (TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY), byref(hToken))
e = GetLastError()
if e != 0:
return False
CloseHandle(hProcess)
privilege_id = LUID()
LookupPrivilegeValueA(None, privilegeStr, byref(privilege_id))
e = GetLastError()
if e != 0:
return False
SE_PRIVILEGE_ENABLED = 0x00000002
laa = LUID_AND_ATTRIBUTES(privilege_id, SE_PRIVILEGE_ENABLED)
tp = TOKEN_PRIVILEGES(1, laa)
AdjustTokenPrivileges(hToken, False, byref(tp), sizeof(tp), None, None)
e = GetLastError()
if e != 0:
return False
return True
def get_debug_privilege():
"""
Enable SE Debug privilege on token
"""
return RtlAdjustPrivilege(SE_DEBUG_PRIVILEGE)
def list_sids():
"""
List all SID by process
"""
sids = []
for pid in EnumProcesses():
if pid <= 4:
continue
try:
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, False, pid)
if not hProcess:
continue
hToken = HANDLE(INVALID_HANDLE_VALUE)
if OpenProcessToken(hProcess, tokenprivs, byref(hToken)):
if hToken:
token_sid, owner = get_token_info(hToken)
if token_sid and owner:
pname = ''
sids.append((pid, pname, token_sid, owner))
CloseHandle(hToken)
CloseHandle(hProcess)
except Exception as e:
print_debug('DEBUG', traceback.format_exc())
continue
return list(sids)
def get_sid_token(token_sid):
if token_sid == "S-1-5-18":
sids = list_sids()
for sid in sids:
if "winlogon" in sid[1].lower():
try:
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, False, sid[0])
if hProcess:
hToken = HANDLE(INVALID_HANDLE_VALUE)
if hToken:
OpenProcessToken(hProcess, tokenprivs, byref(hToken))
if hToken:
print_debug('INFO', u'Using PID: ' + str(sid[0]))
CloseHandle(hProcess)
return hToken
# CloseHandle(hToken)
CloseHandle(hProcess)
except Exception as e:
print_debug('ERROR', u'{error}'.format(error=e))
break
return False
for pid in EnumProcesses():
if pid <= 4:
continue
try:
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, False, int(pid))
if hProcess:
hToken = HANDLE(INVALID_HANDLE_VALUE)
if hToken:
OpenProcessToken(hProcess, tokenprivs, byref(hToken))
if hToken:
sid, owner = get_token_info(hToken)
if sid == token_sid:
print_debug('INFO', u'Impersonate token from pid: ' + str(pid))
CloseHandle(hProcess)
return hToken
CloseHandle(hToken)
CloseHandle(hProcess)
except Exception as e:
print_debug('ERROR', u'{error}'.format(error=e))
return False
def impersonate_sid(sid, close=True):
"""
Try to impersonate an SID
"""
hToken = get_sid_token(sid)
if hToken:
hTokendupe = impersonate_token(hToken)
if hTokendupe:
if close:
CloseHandle(hTokendupe)
return hTokendupe
return False
global_ref = None
def impersonate_sid_long_handle(*args, **kwargs):
"""
Try to impersonate an SID
"""
global global_ref
hTokendupe = impersonate_sid(*args, **kwargs)
if not hTokendupe:
return False
if global_ref:
CloseHandle(global_ref)
global_ref = hTokendupe
return addressof(hTokendupe)
def impersonate_token(hToken):
"""
Impersonate token - Need admin privilege
"""
if get_debug_privilege():
hTokendupe = HANDLE(INVALID_HANDLE_VALUE)
if hTokendupe:
SecurityImpersonation = 2
TokenPrimary = 1
if DuplicateTokenEx(hToken, TOKEN_ALL_ACCESS, None, SecurityImpersonation, TokenPrimary, byref(hTokendupe)):
CloseHandle(hToken)
if ImpersonateLoggedOnUser(hTokendupe):
return hTokendupe
else:
print_debug('DEBUG', 'Get debug privilege failed')
return False
def rev2self():
"""
Back to previous token priv
"""
global global_ref
RevertToSelf()
try:
if global_ref:
CloseHandle(global_ref)
except Exception:
pass
global_ref = None
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