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# Contributed by Kelly Kranabetter.
import os, sys
import win32security, ntsecuritycon, pywintypes, winerror
# get security information
#name=r"c:\autoexec.bat"
#name= r"g:\!workgrp\lim"
name=sys.argv[0]
if not os.path.exists(name):
print(name, "does not exist!")
sys.exit()
print("On file " , name, "\n")
# get owner SID
print("OWNER")
try:
sd= win32security.GetFileSecurity(name, win32security.OWNER_SECURITY_INFORMATION)
sid= sd.GetSecurityDescriptorOwner()
print(" ", win32security.LookupAccountSid(None, sid))
except pywintypes.error as exc:
# in automation and network shares we see:
# pywintypes.error: (1332, 'LookupAccountName', 'No mapping between account names and security IDs was done.')
if exc.winerror != winerror.ERROR_NONE_MAPPED:
raise
print("No owner information is available")
# get group SID
try:
print("GROUP")
sd= win32security.GetFileSecurity(name, win32security.GROUP_SECURITY_INFORMATION)
sid= sd.GetSecurityDescriptorGroup()
print(" ", win32security.LookupAccountSid(None, sid))
except pywintypes.error as exc:
if exc.winerror != winerror.ERROR_NONE_MAPPED:
raise
print("No group information is available")
# get ACEs
sd= win32security.GetFileSecurity(name, win32security.DACL_SECURITY_INFORMATION)
dacl= sd.GetSecurityDescriptorDacl()
if dacl == None:
print("No Discretionary ACL")
else:
for ace_no in range(0, dacl.GetAceCount()):
ace= dacl.GetAce(ace_no)
print("ACE", ace_no)
print(" -Type")
for i in ("ACCESS_ALLOWED_ACE_TYPE", "ACCESS_DENIED_ACE_TYPE", "SYSTEM_AUDIT_ACE_TYPE", "SYSTEM_ALARM_ACE_TYPE"):
if getattr(ntsecuritycon, i) == ace[0][0]:
print(" ", i)
print(" -Flags", hex(ace[0][1]))
for i in ("OBJECT_INHERIT_ACE", "CONTAINER_INHERIT_ACE", "NO_PROPAGATE_INHERIT_ACE", "INHERIT_ONLY_ACE", "SUCCESSFUL_ACCESS_ACE_FLAG", "FAILED_ACCESS_ACE_FLAG"):
if getattr(ntsecuritycon, i) & ace[0][1] == getattr(ntsecuritycon, i):
print(" ", i)
print(" -mask", hex(ace[1]))
# files and directories do permissions differently
permissions_file= ("DELETE", "READ_CONTROL", "WRITE_DAC", "WRITE_OWNER", "SYNCHRONIZE", "FILE_GENERIC_READ", "FILE_GENERIC_WRITE", "FILE_GENERIC_EXECUTE", "FILE_DELETE_CHILD")
permissions_dir= ("DELETE", "READ_CONTROL", "WRITE_DAC", "WRITE_OWNER", "SYNCHRONIZE", "FILE_ADD_SUBDIRECTORY", "FILE_ADD_FILE", "FILE_DELETE_CHILD", "FILE_LIST_DIRECTORY", "FILE_TRAVERSE", "FILE_READ_ATTRIBUTES", "FILE_WRITE_ATTRIBUTES", "FILE_READ_EA", "FILE_WRITE_EA")
permissions_dir_inherit= ("DELETE", "READ_CONTROL", "WRITE_DAC", "WRITE_OWNER", "SYNCHRONIZE", "GENERIC_READ", "GENERIC_WRITE", "GENERIC_EXECUTE", "GENERIC_ALL")
if os.path.isfile(name):
permissions= permissions_file
else:
permissions= permissions_dir
# directories also contain an ACE that is inherited by children (files) within them
if ace[0][1] & ntsecuritycon.OBJECT_INHERIT_ACE == ntsecuritycon.OBJECT_INHERIT_ACE and ace[0][1] & ntsecuritycon.INHERIT_ONLY_ACE == ntsecuritycon.INHERIT_ONLY_ACE:
permissions= permissions_dir_inherit
calc_mask= 0 # calculate the mask so we can see if we are printing all of the permissions
for i in permissions:
if getattr(ntsecuritycon, i) & ace[1] == getattr(ntsecuritycon, i):
calc_mask= calc_mask | getattr(ntsecuritycon, i)
print(" ", i)
print(" ", "Calculated Check Mask=", hex(calc_mask))
print(" -SID\n ", win32security.LookupAccountSid(None, ace[2]))