From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Pinyao Ting Date: Thu, 1 Jun 2023 18:12:44 -0700 Subject: [PATCH] Fix permission issue in legacy shortcut When building legacy shortcut, Launcher calls PackageManager#resolveActivity to retrieve necessary permission to launch the intent. However, when the source app wraps an arbitrary intent within Intent#createChooser, the existing logic will fail because launching Chooser doesn't require additional permission. This CL fixes the security vulnerability by performing the permission check against the intent that is wrapped within. Bug: 270152142 Test: manual (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:c53818a16b4322a823497726ac7e7a44501b4442) Merged-In: If35344c08975e35085c7c2b9b814a3c457a144b0 Change-Id: If35344c08975e35085c7c2b9b814a3c457a144b0 --- .../android/launcher3/util/PackageManagerHelper.java | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/com/android/launcher3/util/PackageManagerHelper.java b/src/com/android/launcher3/util/PackageManagerHelper.java index 78d1d3ca8f..f263331f8f 100644 --- a/src/com/android/launcher3/util/PackageManagerHelper.java +++ b/src/com/android/launcher3/util/PackageManagerHelper.java @@ -112,6 +112,18 @@ public class PackageManagerHelper { * any permissions */ public boolean hasPermissionForActivity(Intent intent, String srcPackage) { + // b/270152142 + if (Intent.ACTION_CHOOSER.equals(intent.getAction())) { + final Bundle extras = intent.getExtras(); + if (extras == null) { + return true; + } + // If given intent is ACTION_CHOOSER, verify srcPackage has permission over EXTRA_INTENT + intent = (Intent) extras.getParcelable(Intent.EXTRA_INTENT); + if (intent == null) { + return true; + } + } ResolveInfo target = mPm.resolveActivity(intent, 0); if (target == null) { // Not a valid target