; Copyright (C) 2013-2016 Apple Inc. All rights reserved. ; ; Redistribution and use in source and binary forms, with or without ; modification, are permitted provided that the following conditions ; are met: ; 1. Redistributions of source code must retain the above copyright ; notice, this list of conditions and the following disclaimer. ; 2. Redistributions in binary form must reproduce the above copyright ; notice, this list of conditions and the following disclaimer in the ; documentation and/or other materials provided with the distribution. ; ; THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' ; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, ; THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR ; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS ; BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR ; CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF ; SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS ; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN ; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ; ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF ; THE POSSIBILITY OF SUCH DAMAGE. (version 1) (deny default) (allow system-audit file-read-metadata) (import "system.sb") ;; Utility functions (define (home-literal home-relative-literal) (literal (string-append (param "HOME_DIR") home-relative-literal))) (define (home-library-regex home-library-relative-regex) (regex (string-append "^" (regex-quote (param "HOME_LIBRARY_DIR")) home-library-relative-regex))) (define (home-library-subpath home-library-relative-subpath) (subpath (string-append (param "HOME_LIBRARY_DIR") home-library-relative-subpath))) (define (home-library-literal home-library-relative-literal) (literal (string-append (param "HOME_LIBRARY_DIR") home-library-relative-literal))) (define (home-library-preferences-regex home-library-preferences-relative-regex) (regex (string-append "^" (regex-quote (param "HOME_LIBRARY_PREFERENCES_DIR")) home-library-preferences-relative-regex))) (define (home-library-preferences-subpath home-library-preferences-relative-subpath) (subpath (string-append (param "HOME_LIBRARY_PREFERENCES_DIR") home-library-preferences-relative-subpath))) (define (home-library-preferences-literal home-library-preferences-relative-literal) (literal (string-append (param "HOME_LIBRARY_PREFERENCES_DIR") home-library-preferences-relative-literal))) (define (shared-preferences-read . domains) (for-each (lambda (domain) (begin (if (defined? `user-preference-read) (allow user-preference-read (preference-domain domain))) ; (Temporary) backward compatibility with non-CFPreferences readers. (allow file-read* (literal (string-append "/Library/Preferences/" domain ".plist")) (home-library-preferences-literal (string-append "/" domain ".plist")) (home-library-preferences-regex (string-append #"/ByHost/" (regex-quote domain) #"\..*\.plist$"))))) domains)) (define (shared-preferences-read-write . domains) (for-each (lambda (domain) (begin (if (defined? `user-preference-write) (allow user-preference-read user-preference-write (preference-domain domain))) ; (Temporary) backward compatibility with non-CFPreferences readers / writers. (allow file-read* file-write* (literal (string-append "/Library/Preferences/" domain ".plist")) (home-library-preferences-literal (string-append "/" domain ".plist")) (home-library-preferences-regex (string-append #"/ByHost/" (regex-quote domain) #"\..*\.plist$"))))) domains)) ;; Remove when is fixed. (define (HEX-pattern-match-generator pattern-descriptor) (letrec ((pattern-string "")) (for-each (lambda (repeat-count) (if (zero? repeat-count) (set! pattern-string (string-append pattern-string "-")) (let appender ((count repeat-count)) (if (> count 0) (begin (set! pattern-string (string-append pattern-string "[0-9A-F]")) (appender (- count 1))))))) pattern-descriptor) pattern-string)) ;; return a regex pattern matching string for 8-4-4-4-12 UUIDs: (define (uuid-HEX-pattern-match-string) (HEX-pattern-match-generator '(8 0 4 0 4 0 4 0 12))) ;; global to hold the computed UUID matching pattern. (define *uuid-pattern* "") (define (uuid-regex-string) (if (zero? (string-length *uuid-pattern*)) (set! *uuid-pattern* (uuid-HEX-pattern-match-string))) *uuid-pattern*) ;; WebKit2 sandbox launcher needs to define an _OS_VERSION parameter ;; This parameter is the major OS Version number. (if (not (defined? 'os-version)) (define os-version (param "_OS_VERSION"))) (system-graphics) ;; Read-only preferences (shared-preferences-read ".GlobalPreferences" "com.apple.ATS" "com.apple.Bluetooth" "com.apple.CoreGraphics" "com.apple.HIToolbox" "com.apple.QuickTime" "com.apple.driver.AppleBluetoothMultitouch.mouse" "com.apple.driver.AppleBluetoothMultitouch.trackpad" "com.apple.driver.AppleHIDMouse" "com.apple.inputmethodkit" "com.apple.iWork.Pages" "com.apple.LaunchServices" "com.apple.MultitouchSupport" "com.apple.security" "com.apple.security.revocation" "com.apple.security_common" "com.apple.speech.voice.prefs" "com.apple.speech.synthesis.general.prefs" "com.apple.speech.recognition.AppleSpeechRecognition.prefs" "com.apple.systemsound" "com.apple.universalaccess" "com.apple.WebFoundation" "com.apple.WebKit.PluginProcess" "pbs" "com.apple.ServicesMenu.Services") ;; Read-only data (allow file-read* (literal "/") (literal "/private/etc/hosts") (literal "/private/etc/protocols") (literal "/private/etc/services") (literal "/private/etc/resolv.conf") (literal "/private/var/run/resolv.conf") (subpath "/Library/Frameworks") (subpath "/Library/Managed Preferences") (subpath "/private/var/db/mds") (regex #"^/Library/Preferences/com\.apple\.security") (home-literal "/.CFUserTextEncoding") (home-library-subpath "/Audio") (home-library-subpath "/ColorPickers") (home-library-subpath "/ColorSync") (subpath "/Library/Components") (home-library-subpath "/Components") (subpath "/Library/Contextual Menu Items") (subpath "/Library/Input Methods") (home-library-subpath "/Input Methods") (subpath "/Library/InputManagers") (home-library-subpath "/InputManagers") (home-library-subpath "/KeyBindings") (subpath "/Library/Keyboard Layouts") (home-library-subpath "/Keyboard Layouts") (subpath "/Library/Fonts") (home-library-subpath "/Fonts") (subpath "/Library/Spelling") (home-library-subpath "/Spelling") (subpath "/Library/PDF Services") (home-library-subpath "/PDF Services") (home-library-preferences-literal "/QuickTime Preferences") (home-library-literal "/Caches/com.apple.coreaudio.components.plist") (subpath "/Library/Audio/Sounds") (subpath "/Library/Audio/Plug-Ins/Components") (home-library-subpath "/Audio/Plug-Ins/Components") (subpath "/Library/Audio/Plug-Ins/HAL") (subpath "/Library/CoreMediaIO/Plug-Ins/DAL") (subpath "/Library/QuickTime") (home-library-subpath "/QuickTime") (subpath "/Library/Video/Plug-Ins") (home-library-subpath "/Caches/QuickTime") (literal "/Library/Application Support/CrashReporter/SubmitDiagInfo.domains") (home-library-literal "/Application Support/SyncServices/Local/ClientsWithChanges/com.apple.Keychain") (subpath "/Library/ColorSync") (home-literal "/Library/Preferences/com.apple.lookup.shared.plist")) #if __MAC_OS_X_VERSION_MIN_REQUIRED < 101240 ;; FIXME: This should be removed when is fixed. ;; Restrict AppSandboxed processes from creating /Library/Keychains, but allow access to the contents of /Library/Keychains: (allow file-read-data file-read-metadata file-write-data (subpath "/Library/Keychains")) ;; Do permit creating per-user keychains (allow file-read* file-write* (home-library-subpath "/Keychains")) ;; Except deny access to new-style iOS Keychain folders which are UUIDs. (deny file-read* file-write* (regex (string-append "/Library/Keychains/" (uuid-regex-string) "(/|$)")) (home-library-regex (string-append "/Keychains/" (uuid-regex-string) "(/|$)"))) #endif ;; Security framework (allow mach-lookup (global-name "com.apple.ocspd")) (allow file-read* (subpath "/private/var/db/mds") (literal "/private/var/db/DetachedSignatures")) (allow ipc-posix-shm-read* ipc-posix-shm-write-data (ipc-posix-name "com.apple.AppleDatabaseChanged")) ;; Read-write preferences and data (allow system-fsctl (fsctl-command (_IO "h" 47))) ;; IOKit user clients (allow iokit-open (iokit-user-client-class "IOAudioControlUserClient") (iokit-user-client-class "IOAudioEngineUserClient") (iokit-user-client-class "IOHIDParamUserClient") (iokit-user-client-class "RootDomainUserClient")) ;; Various services required by AppKit and other frameworks (allow mach-lookup (global-name "com.apple.CoreServices.coreservicesd") (global-name "com.apple.DiskArbitration.diskarbitrationd") (global-name "com.apple.FileCoordination") (global-name "com.apple.FontObjectsServer") #if __MAC_OS_X_VERSION_MIN_REQUIRED < 101200 (global-name "com.apple.FontServer") #endif (global-name "com.apple.ImageCaptureExtension2.presence") (global-name "com.apple.PowerManagement.control") (global-name "com.apple.SecurityServer") (global-name "com.apple.SystemConfiguration.PPPController") (global-name "com.apple.SystemConfiguration.configd") (global-name "com.apple.UNCUserNotification") (global-name "com.apple.audio.VDCAssistant") (global-name "com.apple.audio.audiohald") (global-name "com.apple.audio.coreaudiod") (global-name "com.apple.cfnetwork.AuthBrokerAgent") (global-name "com.apple.cmio.VDCAssistant") (global-name "com.apple.cookied") ;; FIXME: Limit access to cookies. (global-name "com.apple.coreservices.launchservicesd") (global-name "com.apple.fonts") (global-name "com.apple.ocspd") (global-name "com.apple.pasteboard.1") (global-name "com.apple.pbs.fetch_services") (global-name "com.apple.tccd.system") (global-name "com.apple.tsm.uiserver") (global-name "com.apple.window_proxies") (global-name "com.apple.windowserver.active") (local-name "com.apple.tsm.portname") (global-name-regex #"_OpenStep$")) ;; Configuration directories (allow file-read* (subpath (param "PLUGIN_PATH"))) (allow file-read* (subpath (param "WEBKIT2_FRAMEWORK_DIR"))) (allow file* (subpath (param "DARWIN_USER_TEMP_DIR"))) (allow file* (subpath (param "DARWIN_USER_CACHE_DIR"))) (allow file* (subpath (param "NSURL_CACHE_DIR"))) ;; Allow the OpenGL Profiler to attach. (if (defined? 'mach-register) (allow mach-register (global-name-regex #"^_oglprof_attach_<[0-9]+>$"))) (system-network) (allow network-outbound ;; Local mDNSResponder for DNS, arbitrary outbound TCP and UDP (literal "/private/var/run/mDNSResponder") (remote tcp) (remote udp)) (allow network-inbound (local udp)) ;; Open and Save panels (define (webkit-powerbox) (allow file-read* (literal "/Library/Preferences/com.apple.ViewBridge.plist")) (allow file-read* file-write* (extension "com.apple.app-sandbox.read-write")) (allow file-issue-extension (require-all (extension-class "com.apple.app-sandbox.read") (extension "com.apple.app-sandbox.read-write")) (require-all (extension-class "com.apple.app-sandbox.read-write") (extension "com.apple.app-sandbox.read-write")))) ;; Printing (define (webkit-printing) (if (defined? 'authorization-right-obtain) (allow authorization-right-obtain (right-name "system.print.operator") (right-name "system.printingmanager"))) (if (defined? 'mach-register) (deny mach-register (with no-log) (global-name-regex #"^com\.apple\.ICA-[0-9]+$"))) (if (defined? 'mach-task-name) (allow mach-task-name)) (allow network-outbound (literal "/private/var/run/cupsd")) (allow mach-lookup (global-name "com.apple.printuitool.agent") (global-name "com.apple.printtool.agent") (global-name "com.apple.printtool.daemon")) (allow file-read* (subpath "/Library/Printers") (home-literal "/.cups/lpoptions") (home-literal "/.cups/client.conf") (literal "/private/etc/cups/client.conf") (literal "/private/etc/cups/lpoptions") (subpath "/private/etc/cups/ppd") (literal "/private/var/run/cupsd")) (shared-preferences-read "org.cups.PrintingPrefs")) ;; Text Services Manager #if PLATFORM(IOS) || (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200) (with-filter (iokit-registry-entry-class "IOHIDEventDriver") (allow iokit-set-properties (iokit-property "CapsLockDelayOverride"))) #else (allow iokit-set-properties (iokit-property "CapsLockDelayOverride")) #endif ;; Image Capture (define (webkit-imagecapture) (allow appleevent-send (appleevent-destination "com.apple.imagecaptureextension2"))) ;; Camera (define (webkit-camera) (shared-preferences-read "com.apple.coremedia") (allow mach-lookup (extension "com.apple.app-sandbox.mach")) (allow mach-lookup (global-name "com.apple.cmio.AppleCameraAssistant") ;; Apple DAL assistants (global-name "com.apple.cmio.VDCAssistant") (global-name "com.apple.cmio.AVCAssistant") (global-name "com.apple.cmio.IIDCVideoAssistant") ;; QuickTimeIIDCDigitizer assistant (global-name "com.apple.IIDCAssistant")) (allow iokit-open ;; QuickTimeUSBVDCDigitizer (iokit-user-client-class "IOUSBDeviceUserClientV2") (iokit-user-client-class "IOUSBInterfaceUserClientV2")) (allow device-camera)) ;; Microphone (define (webkit-microphone) (allow device-microphone)) (allow ipc-posix-shm* (ipc-posix-name-regex #"^AudioIO") (ipc-posix-name-regex #"^CFPBS:") (ipc-posix-name "com.apple.ColorSync.Gen.lock") (ipc-posix-name "com.apple.ColorSync.Disp.lock") (ipc-posix-name "com.apple.ColorSync.Gray2.2") (ipc-posix-name "com.apple.ColorSync.sRGB") (ipc-posix-name "com.apple.ColorSync.GenGray") (ipc-posix-name "com.apple.ColorSync.GenRGB") (ipc-posix-name-regex #"^com\.apple\.cs\.") (ipc-posix-name-regex #"^ls\.")) (allow ipc-posix-shm-read* (ipc-posix-name-regex #"^/tmp/com\.apple\.csseed\.") (ipc-posix-name "FNetwork.defaultStorageSession") (ipc-posix-name "apple.shm.notification_center")) ;; Silently block access to some resources (deny file-read* file-write* (with no-log) (subpath "/Network/Library") (subpath "/Network/Applications") (home-library-preferences-regex #"/com\.apple\.internetconfig(priv)?\.plist") ;; FIXME: Should be removed after is fixed. (home-library-preferences-literal "/com.apple.LaunchServices.QuarantineEventsV2") (home-library-preferences-literal "/com.apple.LaunchServices.QuarantineEventsV2-journal")) (deny mach-lookup (with no-log) (global-name "com.apple.FSEvents") (global-name "com.apple.coreservices.appleevents") (global-name "com.apple.dock.server") (global-name-regex #"^com\.apple\.distributed_notifications")) ;; The below rules are inserted at the end of sandbox profile compilation by overriding the finalizer. ;; The initial value of %finalize must be the last function called. (letrec ((original-%finalize %finalize) (webkit-%finalize (lambda () (if (defined? 'vnode-type) (deny file-write-create (vnode-type SYMLINK))) ;; Reserve a namespace for additional protected extended attributes. (deny file-read-xattr file-write-xattr (xattr #"^com\.apple\.security\.private\.")) ;; FIXME: Should be removed once is fixed. (if (defined? 'xattr-regex) (deny file-read-xattr file-write-xattr (xattr-regex #"^com\.apple\.security\.private\.")) (deny file-read-xattr file-write-xattr (xattr #"^com\.apple\.security\.private\."))) (original-%finalize)))) (set! %finalize webkit-%finalize))