From 9c4a51a8695c5431ede57ab18e25cb16bf108950 Mon Sep 17 00:00:00 2001 From: Pete Date: Wed, 14 Feb 2024 21:27:39 +0000 Subject: [PATCH] Sig spoofing patches for Android 14 / LOS 21 --- .../android_frameworks_base-Android14.patch | 124 ++++++++++++++++++ ...ackages_modules_Permission-Android14.patch | 12 ++ 2 files changed, 136 insertions(+) create mode 100644 src/signature_spoofing_patches/android_frameworks_base-Android14.patch create mode 100644 src/signature_spoofing_patches/packages_modules_Permission-Android14.patch diff --git a/src/signature_spoofing_patches/android_frameworks_base-Android14.patch b/src/signature_spoofing_patches/android_frameworks_base-Android14.patch new file mode 100644 index 0000000..9ec072c --- /dev/null +++ b/src/signature_spoofing_patches/android_frameworks_base-Android14.patch @@ -0,0 +1,124 @@ +diff --git a/core/api/current.txt b/core/api/current.txt +index 288ab479c0fb..2124d89c6e6f 100644 +--- a/core/api/current.txt ++++ b/core/api/current.txt +@@ -95,6 +95,7 @@ package android { + field public static final String EXECUTE_APP_ACTION = "android.permission.EXECUTE_APP_ACTION"; + field public static final String EXPAND_STATUS_BAR = "android.permission.EXPAND_STATUS_BAR"; + field public static final String FACTORY_TEST = "android.permission.FACTORY_TEST"; ++ field public static final String FAKE_PACKAGE_SIGNATURE = "android.permission.FAKE_PACKAGE_SIGNATURE"; + field public static final String FOREGROUND_SERVICE = "android.permission.FOREGROUND_SERVICE"; + field public static final String FOREGROUND_SERVICE_CAMERA = "android.permission.FOREGROUND_SERVICE_CAMERA"; + field public static final String FOREGROUND_SERVICE_CONNECTED_DEVICE = "android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE"; +@@ -326,6 +327,7 @@ package android { + field public static final String CALL_LOG = "android.permission-group.CALL_LOG"; + field public static final String CAMERA = "android.permission-group.CAMERA"; + field public static final String CONTACTS = "android.permission-group.CONTACTS"; ++ field public static final String FAKE_PACKAGE = "android.permission-group.FAKE_PACKAGE"; + field public static final String LOCATION = "android.permission-group.LOCATION"; + field public static final String MICROPHONE = "android.permission-group.MICROPHONE"; + field public static final String NEARBY_DEVICES = "android.permission-group.NEARBY_DEVICES"; +diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml +index 14cb052b121f..593999bc4ef7 100644 +--- a/core/res/AndroidManifest.xml ++++ b/core/res/AndroidManifest.xml +@@ -4258,6 +4258,22 @@ + android:description="@string/permdesc_getPackageSize" + android:protectionLevel="normal" /> + ++ ++ ++ ++ ++ ++ ++ + +diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml +index 9c018c30f9e3..661297bab701 100644 +--- a/core/res/res/values/strings.xml ++++ b/core/res/res/values/strings.xml +@@ -990,6 +990,19 @@ + Preview, %1$s + + ++ ++ ++ Spoof package signature ++ ++ Allows the app to pretend to be a different app. Malicious applications might be able to use this to access private application data. Legitimate uses include an emulator pretending to be what it emulates. Grant this permission with caution only! ++ ++ Spoof package signature ++ ++ allow to spoof package signature ++ ++ Allow ++ <b>%1$s</b> to spoof package signature? ++ + + + disable or modify status bar +diff --git a/services/core/java/com/android/server/pm/ComputerEngine.java b/services/core/java/com/android/server/pm/ComputerEngine.java +index 78f1fa60b69f..1e29d3697b89 100644 +--- a/services/core/java/com/android/server/pm/ComputerEngine.java ++++ b/services/core/java/com/android/server/pm/ComputerEngine.java +@@ -1450,6 +1450,29 @@ public class ComputerEngine implements Computer { + return result; + } + ++ private boolean requestsFakeSignature(AndroidPackage p) { ++ return p.getMetaData() != null && ++ p.getMetaData().getString("fake-signature") != null; ++ } ++ ++ private PackageInfo mayFakeSignature(AndroidPackage p, PackageInfo pi, ++ Set permissions) { ++ try { ++ if (p.getMetaData() != null && ++ p.getTargetSdkVersion() > Build.VERSION_CODES.LOLLIPOP_MR1) { ++ String sig = p.getMetaData().getString("fake-signature"); ++ if (sig != null && ++ permissions.contains("android.permission.FAKE_PACKAGE_SIGNATURE")) { ++ pi.signatures = new Signature[] {new Signature(sig)}; ++ } ++ } ++ } catch (Throwable t) { ++ // We should never die because of any failures, this is system code! ++ Log.w("PackageManagerService.FAKE_PACKAGE_SIGNATURE", t); ++ } ++ return pi; ++ } ++ + public final PackageInfo generatePackageInfo(PackageStateInternal ps, + @PackageManager.PackageInfoFlagsBits long flags, int userId) { + if (!mUserManager.exists(userId)) return null; +@@ -1483,13 +1506,15 @@ public class ComputerEngine implements Computer { + || ArrayUtils.isEmpty(p.getPermissions())) ? Collections.emptySet() + : mPermissionManager.getInstalledPermissions(ps.getPackageName()); + // Compute granted permissions only if package has requested permissions +- final Set grantedPermissions = ((flags & PackageManager.GET_PERMISSIONS) == 0 ++ final Set grantedPermissions = (((flags & PackageManager.GET_PERMISSIONS) == 0 ++ && !requestsFakeSignature(p)) + || ArrayUtils.isEmpty(p.getRequestedPermissions())) ? Collections.emptySet() + : mPermissionManager.getGrantedPermissions(ps.getPackageName(), userId); + +- PackageInfo packageInfo = PackageInfoUtils.generate(p, gids, flags, ++ PackageInfo packageInfo = mayFakeSignature(p, PackageInfoUtils.generate(p, gids, flags, + state.getFirstInstallTimeMillis(), ps.getLastUpdateTime(), installedPermissions, +- grantedPermissions, state, userId, ps); ++ grantedPermissions, state, userId, ps), ++ grantedPermissions); + + if (packageInfo == null) { + return null; diff --git a/src/signature_spoofing_patches/packages_modules_Permission-Android14.patch b/src/signature_spoofing_patches/packages_modules_Permission-Android14.patch new file mode 100644 index 0000000..9aace22 --- /dev/null +++ b/src/signature_spoofing_patches/packages_modules_Permission-Android14.patch @@ -0,0 +1,12 @@ +diff --git a/PermissionController/src/com/android/permissioncontroller/permission/utils/Utils.java b/PermissionController/src/com/android/permissioncontroller/permission/utils/Utils.java +index d4354bd72..4b90f9327 100644 +--- a/PermissionController/src/com/android/permissioncontroller/permission/utils/Utils.java ++++ b/PermissionController/src/com/android/permissioncontroller/permission/utils/Utils.java +@@ -21,6 +21,7 @@ import static android.Manifest.permission_group.CALENDAR; + import static android.Manifest.permission_group.CALL_LOG; + import static android.Manifest.permission_group.CAMERA; + import static android.Manifest.permission_group.CONTACTS; ++import static android.Manifest.permission_group.FAKE_PACKAGE; + import static android.Manifest.permission_group.LOCATION; + import static android.Manifest.permission_group.MICROPHONE; + import static android.Manifest.permission_group.NEARBY_DEVICES;