mirror of
https://github.com/volatilityfoundation/volatility
synced 2026-06-08 18:04:46 +00:00
gleeda
159 lines
5.3 KiB
Python
159 lines
5.3 KiB
Python
# Volatility
|
|
# Copyright (C) 2007-2013 Volatility Foundation
|
|
#
|
|
# This file is part of Volatility.
|
|
#
|
|
# Volatility is free software; you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# Volatility is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with Volatility. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
"""
|
|
@author: Andrew Case
|
|
@license: GNU General Public License 2.0
|
|
@contact: atcuno@gmail.com
|
|
@organization:
|
|
"""
|
|
|
|
import volatility.obj as obj
|
|
import volatility.plugins.mac.common as common
|
|
from volatility.renderers import TreeGrid
|
|
from volatility.renderers.basic import Address
|
|
|
|
# based on sysctl_sysctl_debug_dump_node
|
|
class mac_check_sysctl(common.AbstractMacCommand):
|
|
""" Checks for unknown sysctl handlers """
|
|
|
|
# returns the value for known, hardcoded-sysctls, otherwise ""
|
|
def _parse_global_variable_sysctls(self, name):
|
|
known_sysctls = {
|
|
"hostname" : "_hostname",
|
|
"nisdomainname" : "_domainname",
|
|
}
|
|
|
|
if name in known_sysctls:
|
|
var_name = known_sysctls[name]
|
|
|
|
var_addr = self.addr_space.profile.get_symbol(var_name)
|
|
|
|
var_str = common.get_string(var_addr, self.addr_space)
|
|
|
|
else:
|
|
var_str = ""
|
|
|
|
return var_str
|
|
|
|
def _process_sysctl_list(self, sysctl_list, r = 0):
|
|
|
|
if type(sysctl_list) == obj.Pointer:
|
|
sysctl_list = sysctl_list.dereference_as("sysctl_oid_list")
|
|
|
|
sysctl = sysctl_list.slh_first
|
|
|
|
# skip the head entry if new list (recursive call)
|
|
if r:
|
|
sysctl = sysctl.oid_link.sle_next
|
|
|
|
while sysctl and sysctl.is_valid():
|
|
name = sysctl.oid_name.dereference()
|
|
|
|
if len(name) == 0:
|
|
break
|
|
|
|
name = str(name)
|
|
|
|
ctltype = sysctl.get_ctltype()
|
|
|
|
if sysctl.oid_arg1 == 0 or not sysctl.oid_arg1.is_valid():
|
|
val = self._parse_global_variable_sysctls(name)
|
|
elif ctltype == 'CTLTYPE_NODE':
|
|
if sysctl.oid_handler == 0:
|
|
for info in self._process_sysctl_list(sysctl.oid_arg1, r = 1):
|
|
yield info
|
|
val = "Node"
|
|
elif ctltype in ['CTLTYPE_INT', 'CTLTYPE_QUAD', 'CTLTYPE_OPAQUE']:
|
|
val = sysctl.oid_arg1.dereference()
|
|
elif ctltype == 'CTLTYPE_STRING':
|
|
## FIXME: can we do this without get_string?
|
|
val = common.get_string(sysctl.oid_arg1, self.addr_space)
|
|
else:
|
|
val = ctltype
|
|
|
|
yield (sysctl, name, val)
|
|
|
|
sysctl = sysctl.oid_link.sle_next
|
|
|
|
def calculate(self):
|
|
common.set_plugin_members(self)
|
|
|
|
(kernel_symbol_addresses, kmods) = common.get_kernel_addrs(self)
|
|
|
|
sysctl_children_addr = self.addr_space.profile.get_symbol("_sysctl__children")
|
|
|
|
sysctl_list = obj.Object("sysctl_oid_list", offset = sysctl_children_addr, vm = self.addr_space)
|
|
|
|
for (sysctl, name, val) in self._process_sysctl_list(sysctl_list):
|
|
if val == "INVALID -1":
|
|
continue
|
|
|
|
(is_known, module_name) = common.is_known_address_name(sysctl.oid_handler.v(), kernel_symbol_addresses, kmods)
|
|
|
|
if is_known:
|
|
status = "OK"
|
|
else:
|
|
status = "UNKNOWN"
|
|
|
|
yield (sysctl, name, val, is_known, module_name, status)
|
|
|
|
def unified_output(self, data):
|
|
|
|
return TreeGrid([("Name", str),
|
|
("Number", int),
|
|
("Perms", str),
|
|
("Handler", Address),
|
|
("Value", str),
|
|
("Module", str),
|
|
("Status", str),
|
|
], self.generator(data))
|
|
|
|
def generator(self, data):
|
|
for (sysctl, name, val, is_known, module_name, status) in data:
|
|
yield(0, [
|
|
str(name),
|
|
int(sysctl.oid_number),
|
|
str(sysctl.get_perms()),
|
|
Address(sysctl.oid_handler),
|
|
str(val),
|
|
str(module_name),
|
|
str(status),
|
|
])
|
|
|
|
def render_text(self, outfd, data):
|
|
self.table_header(outfd, [
|
|
("Name", "30"),
|
|
("Number", "8"),
|
|
("Perms", "6"),
|
|
("Handler", "[addrpad]"),
|
|
("Value", "20"),
|
|
("Module", "40"),
|
|
("Status", "5")])
|
|
|
|
for (sysctl, name, val, is_known, module_name, status) in data:
|
|
self.table_row(outfd,
|
|
name,
|
|
sysctl.oid_number,
|
|
sysctl.get_perms(),
|
|
sysctl.oid_handler,
|
|
val,
|
|
module_name,
|
|
status)
|