mirror of
https://github.com/volatilityfoundation/volatility3.git
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mtresslerandikelos
8f1b338996
changed behavior of plugin with it is run with a bad symbol table. Instead of a vollog.error, a TypeError exception is raised with information as to why it was raised. Also removed unnecessary header info.
66 lines
2.5 KiB
Python
66 lines
2.5 KiB
Python
# This file is Copyright 2019 Volatility Foundation and licensed under the Volatility Software License 1.0
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# which is available at https://www.volatilityfoundation.org/license/vsl-v1.0
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#
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import logging
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from typing import List
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from volatility.framework import interfaces, renderers, exceptions, constants, contexts, objects
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from volatility.framework.automagic import linux
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from volatility.framework.configuration import requirements
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from volatility.framework.interfaces import plugins
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from volatility.framework.layers import intel
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from volatility.plugins.linux import pslist
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vollog = logging.getLogger(__name__)
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class check_creds(interfaces.plugins.PluginInterface):
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"""Checks if any processes are sharing credential structures"""
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@classmethod
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def get_requirements(cls):
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return [
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requirements.TranslationLayerRequirement(name='primary',
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description='Memory layer for the kernel',
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architectures=["Intel32", "Intel64"]),
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requirements.SymbolTableRequirement(
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name="vmlinux", description="Linux kernel symbols"),
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requirements.PluginRequirement(
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name='pslist', plugin=pslist.PsList, version=(1, 0, 0))
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]
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def _generator(self):
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vmlinux = contexts.Module(
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self.context, self.config['vmlinux'], self.config['primary'], 0)
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type_task = self.context.symbol_space.get_type(self.config['vmlinux'] + constants.BANG +"task_struct")
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if not type_task.has_member("cred"):
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raise TypeError("This plugin requires the task_struct structure to have a cred member. This member is not present in the supplied symbol table. This means you are either analyzing an unsupported kernel version or that your symbol table is corrupt.")
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creds = {}
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tasks = pslist.PsList.list_tasks(self.context,
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self.config['primary'], self.config['vmlinux'])
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for task in tasks:
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cred_addr = task.cred.dereference().vol.offset
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if not cred_addr in creds:
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creds[cred_addr] = []
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creds[cred_addr].append(task.pid)
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for (_, pids) in creds.items():
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if len(pids) > 1:
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pid_str = ""
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for pid in pids:
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pid_str = pid_str + "{0:d}, ".format(pid)
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pid_str = pid_str[:-2]
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yield(0, [str(pid_str)])
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def run(self):
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return renderers.TreeGrid([("PIDs", str)], self._generator())
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