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Added new TCC module
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@ -252,6 +252,16 @@ This JSON file is created by mvt-ios' `SMSAttachments` module. The module extrac
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---
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### `tcc.json`
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!!! info "Availability"
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Backup: :material-check:
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Full filesystem dump: :material-check:
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This JSON file is created by mvt-ios' `TCC` module. The module extracts records from a SQLite database located at */private/var/mobile/Library/TCC/TCC.db*, which contains a list of which services such as microphone, camera, or location, apps have been granted or denied access to.
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---
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### `version_history.json`
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!!! info "Availability"
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@ -18,6 +18,7 @@ from .safari_browserstate import SafariBrowserState
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from .safari_history import SafariHistory
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from .sms import SMS
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from .sms_attachments import SMSAttachments
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from .tcc import TCC
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from .webkit_resource_load_statistics import WebkitResourceLoadStatistics
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from .webkit_session_resource_log import WebkitSessionResourceLog
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from .whatsapp import Whatsapp
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@ -25,5 +26,5 @@ from .whatsapp import Whatsapp
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MIXED_MODULES = [Calls, ChromeFavicon, ChromeHistory, Contacts, FirefoxFavicon,
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FirefoxHistory, IDStatusCache, InteractionC, LocationdClients,
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OSAnalyticsADDaily, Datausage, SafariBrowserState, SafariHistory,
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SMS, SMSAttachments, WebkitResourceLoadStatistics,
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TCC, SMS, SMSAttachments, WebkitResourceLoadStatistics,
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WebkitSessionResourceLog, Whatsapp,]
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@ -0,0 +1,90 @@
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# Mobile Verification Toolkit (MVT)
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# Copyright (c) 2021 The MVT Project Authors.
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# Use of this software is governed by the MVT License 1.1 that can be found at
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# https://license.mvt.re/1.1/
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import sqlite3
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from datetime import datetime
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from mvt.common.utils import convert_timestamp_to_iso
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from ..base import IOSExtraction
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TCC_BACKUP_IDS = [
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"64d0019cb3d46bfc8cce545a8ba54b93e7ea9347",
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]
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TCC_ROOT_PATHS = [
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"private/var/mobile/Library/TCC/TCC.db",
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]
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AUTH_VALUES = {
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0: "denied",
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1: "unknown",
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2: "allowed",
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3: "limited",
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}
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AUTH_REASONS = {
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1: "error",
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2: "user_consent",
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3: "user_set",
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4: "system_set",
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5: "service_policy",
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6: "mdm_policy",
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7: "override_policy",
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8: "missing_usage_string",
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9: "prompt_timeout",
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10: "preflight_unknown",
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11: "entitled",
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12: "app_type_policy",
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}
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class TCC(IOSExtraction):
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"""This module extracts records from the TCC.db SQLite database."""
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def __init__(self, file_path=None, base_folder=None, output_folder=None,
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fast_mode=False, log=None, results=[]):
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super().__init__(file_path=file_path, base_folder=base_folder,
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output_folder=output_folder, fast_mode=fast_mode,
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log=log, results=results)
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def process_db(self, file_path):
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conn = sqlite3.connect(file_path)
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cur = conn.cursor()
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cur.execute("""SELECT
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service, client, client_type, auth_value, auth_reason, last_modified
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FROM access;""")
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for row in cur:
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service = row[0]
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client = row[1]
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client_type = row[2]
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client_type_desc = "bundle_id" if client_type == 0 else "absolute_path"
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auth_value = row[3]
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auth_value_desc = AUTH_VALUES.get(auth_value, "")
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auth_reason = row[4]
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auth_reason_desc = AUTH_REASONS.get(auth_reason, "unknown")
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last_modified = convert_timestamp_to_iso(datetime.utcfromtimestamp((row[5])))
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if service in ["kTCCServiceMicrophone", "kTCCServiceCamera"]:
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device = "microphone" if service == "kTCCServiceMicrophone" else "camera"
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self.log.info("Found client \"%s\" with access %s to %s on %s by %s",
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client, auth_value_desc, device, last_modified, auth_reason_desc)
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self.results.append({
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"service": service,
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"client": client,
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"client_type": client_type_desc,
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"auth_value": auth_value_desc,
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"auth_reason_desc": auth_reason_desc,
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"last_modified": last_modified,
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})
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cur.close()
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conn.close()
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def run(self):
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self._find_ios_database(backup_ids=TCC_BACKUP_IDS, root_paths=TCC_ROOT_PATHS)
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self.log.info("Found TCC database at path: %s", self.file_path)
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self.process_db(self.file_path)
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self.log.info("Extracted a total of %d TCC items", len(self.results))
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