mirror of https://github.com/mvt-project/mvt.git
133 lines
5.0 KiB
Python
133 lines
5.0 KiB
Python
# 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 os
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import sqlite3
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from mvt.common.url import URL
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from mvt.common.utils import convert_mactime_to_unix, convert_timestamp_to_iso
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from ..base import IOSExtraction
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SAFARI_HISTORY_BACKUP_RELPATH = "Library/Safari/History.db"
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SAFARI_HISTORY_ROOT_PATHS = [
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"private/var/mobile/Library/Safari/History.db",
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"private/var/mobile/Containers/Data/Application/*/Library/Safari/History.db",
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]
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class SafariHistory(IOSExtraction):
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"""This module extracts all Safari visits and tries to detect potential
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network injection attacks.
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"""
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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 serialize(self, record):
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return {
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"timestamp": record["isodate"],
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"module": self.__class__.__name__,
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"event": "safari_history",
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"data": f"Safari visit to {record['url']} (ID: {record['id']}, Visit ID: {record['visit_id']})",
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}
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def _find_injections(self):
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for result in self.results:
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# We presume injections only happen on HTTP visits.
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if not result["url"].lower().startswith("http://"):
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continue
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# If there is no destination, no redirect happened.
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if not result["redirect_destination"]:
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continue
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origin_domain = URL(result["url"]).domain
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# We loop again through visits in order to find redirect record.
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for redirect in self.results:
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if redirect["visit_id"] != result["redirect_destination"]:
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continue
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redirect_domain = URL(redirect["url"]).domain
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# If the redirect destination is the same domain as the origin,
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# it's most likely an HTTPS upgrade.
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if origin_domain == redirect_domain:
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continue
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self.log.info("Found HTTP redirect to different domain: \"%s\" -> \"%s\"",
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origin_domain, redirect_domain)
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redirect_time = convert_mactime_to_unix(redirect["timestamp"])
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origin_time = convert_mactime_to_unix(result["timestamp"])
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elapsed_time = redirect_time - origin_time
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elapsed_ms = elapsed_time.microseconds / 1000
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if elapsed_time.seconds == 0:
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self.log.warning("Redirect took less than a second! (%d milliseconds)", elapsed_ms)
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def check_indicators(self):
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self._find_injections()
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if not self.indicators:
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return
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for result in self.results:
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if self.indicators.check_domain(result["url"]):
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self.detected.append(result)
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def _process_history_db(self, history_path):
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self._recover_sqlite_db_if_needed(history_path)
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conn = sqlite3.connect(history_path)
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cur = conn.cursor()
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cur.execute("""
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SELECT
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history_items.id,
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history_items.url,
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history_visits.id,
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history_visits.visit_time,
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history_visits.redirect_source,
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history_visits.redirect_destination
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FROM history_items
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JOIN history_visits ON history_visits.history_item = history_items.id
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ORDER BY history_visits.visit_time;
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""")
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for row in cur:
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self.results.append({
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"id": row[0],
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"url": row[1],
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"visit_id": row[2],
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"timestamp": row[3],
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"isodate": convert_timestamp_to_iso(convert_mactime_to_unix(row[3])),
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"redirect_source": row[4],
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"redirect_destination": row[5],
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"safari_history_db": os.path.relpath(history_path, self.base_folder),
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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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if self.is_backup:
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for history_file in self._get_backup_files_from_manifest(relative_path=SAFARI_HISTORY_BACKUP_RELPATH):
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history_path = self._get_backup_file_from_id(history_file["file_id"])
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if not history_path:
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continue
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self.log.info("Found Safari history database at path: %s", history_path)
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self._process_history_db(history_path)
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elif self.is_fs_dump:
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for history_path in self._get_fs_files_from_patterns(SAFARI_HISTORY_ROOT_PATHS):
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self.log.info("Found Safari history database at path: %s", history_path)
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self._process_history_db(history_path)
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self.log.info("Extracted a total of %d history records", len(self.results))
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