com.apple.WebKit.plugin-common.sb.in [plain text]
; Copyright (C) 2013-2017 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")
;;; 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|boot-display|mux-switch-state)")
(iokit-property-regex #"^ATY,fb_(linebytes|offset|size)")
(iokit-property "ActuationSupported")
(iokit-property "AllowDisplaySleep")
(iokit-property "AlwaysNeedsVelocityCalculated")
(iokit-property "Apple(DisplayType|IntelMEVABundleName|Sense)")
(iokit-property "CFBundleIdentifier")
(iokit-property-regex #"^Display(ParameterHandlerUsesCharPtr|ProductID|Routing|SerialNumber|VendorID)")
(iokit-property "DeviceEqID")
(iokit-property "Driver is Ready")
(iokit-property "EnableLPVP")
(iokit-property "Endianness")
(iokit-property "Family ID")
(iokit-property "ForceSupported")
(iokit-property "HIDPointerAccelerationType")
(iokit-property-regex #"^IOAccel(Index|Revision|Types)")
(iokit-property-regex #"^IOAudioControl(ChannelID|ID|SubType|Usage)")
(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-regex #"^IOAudioEngineNum(ActiveUserClients|SampleFramesPerBuffer)")
(iokit-property "IOAudioSampleRate")
(iokit-property "IOAudioStreamSampleFormatByteOrder")
(iokit-property "IOClassNameOverride")
(iokit-property "IOCFPlugInTypes")
(iokit-property "IOClass")
(iokit-property "IOConsoleUsers")
(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 "IOGVACodec")
(iokit-property "IOI2CTransactionTypes")
(iokit-property-regex "^IOGVA[A-Z]+Decode")
(iokit-property "IOMACAddress") ;; For some Flash players
(iokit-property "IOMatchCategory")
(iokit-property-regex #"^IOName(Match|Matched)")
(iokit-property "IOPMStrictTreeOrder")
(iokit-property-regex #"^IOPlatform(SerialNumber|UUID)") ;; Ditto
(iokit-property "IOPowerManagement")
(iokit-property "IOProbeScore")
(iokit-property "IOProviderClass")
(iokit-property "IOScreenRestoreState")
(iokit-property "IOVARendererID")
(iokit-property-regex #"^MT( Built-In|HIDDevice)")
(iokit-property "MaintainPowerInUILock")
(iokit-property "Max Packet Size")
(iokit-property-regex #"^MetalPlugin(Name|ClassName)")
(iokit-property-regex #"^Multitouch (ID|Serial Number|Subdevice ID)")
(iokit-property "NXSystemInfo")
(iokit-property "NoAutoRoute")
(iokit-property "Protocol Characteristics")
(iokit-property-regex #"^Sensor (Columns|Region (Descriptor|Param)|Rows|Surface (Descriptor|Height|Width))")
(iokit-property "SupportAudioAUUC")
(iokit-property "TimeStampFiltering")
(iokit-property "Transport")
(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 "connector-type")
(iokit-property "device-colors")
(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")
)
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101300
(deny mach-lookup (xpc-service-name-prefix ""))
#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 <rdar://problem/29646094> 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"))
#if __MAC_OS_X_VERSION_MIN_REQUIRED < 101240
;; FIXME: This should be removed when <rdar://problem/10479685> 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.audio.AudioComponentRegistrar")
(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")
#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 101300
(global-name "com.apple.analyticsd")
#endif
(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: <rdar://problem/10790768> 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.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
#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 <rdar://problem/10463881> 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 <rdar://problem/16329087> 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))