; Copyright (C) 2013-2018 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 (with partial-symbolication)) (allow system-audit file-read-metadata) (import "system.sb") ;;; process-info* defaults to allow; deny it and then allow operations we actually need. (deny process-info*) (allow process-info-pidinfo) (allow process-info-setcontrol (target self)) (deny sysctl*) (allow sysctl-read (sysctl-name "hw.availcpu" "hw.ncpu" "hw.model" "kern.memorystatus_level" "vm.footprint_suspend")) (deny iokit-get-properties) (allow iokit-get-properties (iokit-property-regex #"^AAPL,(DisplayPipe|OpenCLdisabled|IOGraphics_LER(|_RegTag_1|_RegTag_0|_Busy_2)|alias-policy|boot-display|display-alias|mux-switch-state|ndrv-dev|primary-display|slot-name)") (iokit-property "AGCInfo") (iokit-property-regex #"^ATY,(cbits|fb_(linebytes|offset|size)|intrev)") (iokit-property-regex #"^Accel(Caps|NativeDMARowByteAlignment)") (iokit-property "ActuationSupported") (iokit-property "AllowDisplaySleep") (iokit-property "AlwaysNeedsVelocityCalculated") (iokit-property "Apple(DisplayType|GVAKeyDoesNotExist|IntelMEVABundleName|Sense)") (iokit-property "CFBundleIdentifier") (iokit-property "CFBundleIdentifierKernel") ;; (iokit-property-regex #"^Display(ParameterHandlerUsesCharPtr|ProductID|Routing|SerialNumber|VendorID)") (iokit-property "Development") (iokit-property "DeviceEqID") (iokit-property "Driver is Ready") (iokit-property "EnableLPVP") (iokit-property "Endianness") (iokit-property "Family ID") (iokit-property "ForceSupported") (iokit-property "GPUConfigurationVariable") (iokit-property "GpuDebugPolicy") (iokit-property "HIDPointerAccelerationType") (iokit-property-regex #"^IOAV(.*)(De|En)code$") (iokit-property-regex #"^IOAccel(DisplayPipeCapabilities|Index|Revision|Types)") (iokit-property-regex #"^IOAudioControl(ChannelID|ID|SubType|Usage)") (iokit-property "IOAudioControlValue") (iokit-property-regex #"^IOAudioDevice(CanBeDefaults|TransportType)") (iokit-property-regex #"^IOAudioEngine(ChannelNames|ClientDescription|CoreAudioPlugIn|(|Device)Description|Flavor|GlobalUniqueID|OutputChannelLayout|SampleOffset|State)") (iokit-property-regex #"^IOAudioEngineClock(Domain|IsStable)") (iokit-property "IOAudioEngineDisableClockBoundsCheck") (iokit-property-regex #"^IOAudioEngine(Input|Output)Sample(Latency|Offset)") (iokit-property "IOAudioEngineIsHidden") (iokit-property-regex #"^IOAudioEngineNum(ActiveUserClients|SampleFramesPerBuffer)") (iokit-property "IOAudioSampleRate") (iokit-property "IOAudioStreamSampleFormatByteOrder") (iokit-property "IOBacklightHandlerID") (iokit-property "IOClassNameOverride") (iokit-property "IOCFPlugInTypes") (iokit-property "IOClass") (iokit-property "IOConsoleUsers") (iokit-property "IODVDBundleName") (iokit-property-regex #"^IODisplay(Attributes|CapabilityString|ConnectFlags|ControllerID|EDID|FirmwareLevel|MCCSVersion|Parameters|PrefsKey|TechnologyType|UsageTime)") (iokit-property-regex #"^IOFB(CLUTDefer|Config|CurrentPixelClock|CurrentPixelCount|CursorInfo|DependentID|DependentIndex|DetailedTimings|GammaCount|GammaHeaderSize|GammaWidth|I2CInterfaceIDs|I2CInterfaceInfo|Integrated|MemorySize|NeedsRefresh|ProbeOptions|ScalerInfo|TimingRange|Transform|UIScale|WaitCursorFrames|WaitCursorPeriod)") (iokit-property-regex #"^IOFBCurrentPixelCount(Real)") (iokit-property "IOFramebufferOpenGLIndex") (iokit-property "IOGeneralInterest") (iokit-property "IOGLBundleName") (iokit-property-regex #"^IOGVA(BGRAEnc|Codec|EncoderRestricted|Scaler|VTCapabilities)") (iokit-property-regex "^IOGVA[A-Z]+(De|En)code") (iokit-property "IOGVAH264EncodeCapabilities") ;; (iokit-property "IOI2CTransactionTypes") (iokit-property "IOKitDebug") (iokit-property "IOMACAddress") ;; For some Flash players (iokit-property "IOMatchCategory") (iokit-property-regex #"^IOName(Match|Matched)") (iokit-property "IOOCDBundleName") (iokit-property-regex #"^IOPCI((Class|Primary|Property|)Match|Express(Capabilities|Link(Status|Capabilities))|MSIMode|Resourced|Tunnelled)") (iokit-property "IOPMStrictTreeOrder") (iokit-property-regex #"^IOPlatform(SerialNumber|UUID)") ;; Ditto (iokit-property "IOPowerManagement") (iokit-property "IOProbeScore") (iokit-property "IOPropertyMatch") (iokit-property "IOProviderClass") (iokit-property-regex #"^IOReport(Lures|Legend(|Public))") (iokit-property "IOScreenRestoreState") (iokit-property "IOSourceVersion") (iokit-property "IOVABundleName") (iokit-property "IOVARendererID") (iokit-property "IOVARendererSubID") (iokit-property-regex #"^InternalStatistics(|Accm)") (iokit-property-regex #"^MT( Built-In|HIDDevice)") (iokit-property "MaintainPowerInUILock") (iokit-property "Max Packet Size") (iokit-property-regex #"^MetalPlugin(Name|ClassName)") (iokit-property "MetalStatisticsName") (iokit-property-regex #"^Multitouch (ID|Serial Number|Subdevice ID)") (iokit-property "NVDA,mm-version") (iokit-property "NVDA,NVPresentment-version") (iokit-property "NVDA,Enable-A2R10G10B10Format") (iokit-property "NXSystemInfo") (iokit-property "NoAutoRoute") (iokit-property-regex #"^PerformanceStatistics(|Accum)") (iokit-property "Protocol Characteristics") (iokit-property "SafeEjectRequested") (iokit-property-regex #"^Sensor (Columns|Region (Descriptor|Param)|Rows|Surface (Descriptor|Height|Width))") (iokit-property "SupportAudioAUUC") (iokit-property "SurfaceList") (iokit-property "TimeStampFiltering") (iokit-property "Transport") (iokit-property "VRAM,totalMB") (iokit-property "WANTS_FRAMES_IGNORED") (iokit-property "board-id") (iokit-property-regex #"^audio-(codec-info|device-(mvalue|nvalue))") (iokit-property "av-signal-type") (iokit-property "bcdVersion") (iokit-property "boot-gamma-restored") (iokit-property "built-in") (iokit-property "cail_properties") (iokit-property "connector-type") (iokit-property "device-colors") (iokit-property "dpm") (iokit-property "graphic-options") (iokit-property "idProduct") (iokit-property "idVendor") (iokit-property "iofb_version") (iokit-property-regex #"^parser-(options|type)") (iokit-property "port-number") (iokit-property "startup-timing") (iokit-property "touch-size-id") ) (deny mach-lookup (xpc-service-name-prefix "")) (allow mach-lookup (xpc-service-name "com.apple.ViewBridgeAuxiliary") (xpc-service-name "com.apple.accessibility.mediaaccessibilityd") (xpc-service-name "com.apple.appkit.xpc.openAndSavePanelService") (xpc-service-name "com.apple.appstore.PluginXPCService") ; (xpc-service-name "com.apple.audio.SandboxHelper") (xpc-service-name "com.apple.coremedia.videodecoder") (xpc-service-name "com.apple.coremedia.videoencoder") (xpc-service-name-regex #"\.apple-extension-service$") (xpc-service-name "com.apple.hiservices-xpcservice") (xpc-service-name "com.apple.print.normalizerd") ) #if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101400 ;; (allow mach-lookup (xpc-service-name "com.apple.MTLCompilerService")) #endif ;; 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*) (define (allow-read-write-directory-and-issue-read-write-extensions path) (if path (begin (allow file-read* file-write* (subpath path)) (allow file-issue-extension (require-all (extension-class "com.apple.app-sandbox.read") (subpath path))) (allow file-issue-extension (require-all (extension-class "com.apple.app-sandbox.read-write") (subpath path)))))) ;; 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")) ;; 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.audio.AudioComponentRegistrar") (global-name "com.apple.assertiond.processassertionconnection") (global-name "com.apple.CoreServices.coreservicesd") (global-name "com.apple.DiskArbitration.diskarbitrationd") (global-name "com.apple.FileCoordination") (global-name "com.apple.FontObjectsServer") (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.analyticsd") (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.lsd.mapdb") (global-name "com.apple.ocspd") (global-name "com.apple.pasteboard.1") (global-name "com.apple.pbs.fetch_services") (global-name "com.apple.tccd") (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$")) ;; Configuration directories (allow file-read* (subpath (param "PLUGIN_PATH"))) (allow file-read* (subpath (param "WEBKIT2_FRAMEWORK_DIR"))) (if (positive? (string-length (param "DARWIN_USER_CACHE_DIR"))) (allow-read-write-directory-and-issue-read-write-extensions (param "DARWIN_USER_CACHE_DIR"))) (if (positive? (string-length (param "DARWIN_USER_TEMP_DIR"))) (allow-read-write-directory-and-issue-read-write-extensions (param "DARWIN_USER_TEMP_DIR"))) (if (positive? (string-length (param "NSURL_CACHE_DIR"))) (allow-read-write-directory-and-issue-read-write-extensions (param "NSURL_CACHE_DIR"))) ;; Allow the OpenGL Profiler to attach. (if (defined? 'mach-register) (allow mach-register (global-name-regex #"^_oglprof_attach_<[0-9]+>$"))) (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 (with-filter (iokit-registry-entry-class "IOHIDEventDriver") (allow iokit-set-properties (iokit-property "CapsLockDelayOverride"))) ;; 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-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 (not (defined? 'allow-symlinks)) (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))