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57 lines
2.3 KiB
Diff
57 lines
2.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Pinyao Ting <pinyaoting@google.com>
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Date: Thu, 1 Jun 2023 18:12:44 -0700
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Subject: [PATCH] Fix permission issue in legacy shortcut
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When building legacy shortcut, Launcher calls
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PackageManager#resolveActivity to retrieve necessary permission to
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launch the intent.
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However, when the source app wraps an arbitrary intent within
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Intent#createChooser, the existing logic will fail because launching
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Chooser doesn't require additional permission.
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This CL fixes the security vulnerability by performing the permission
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check against the intent that is wrapped within.
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Bug: 270152142
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Test: manual
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(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:c53818a16b4322a823497726ac7e7a44501b4442)
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Merged-In: If35344c08975e35085c7c2b9b814a3c457a144b0
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Change-Id: If35344c08975e35085c7c2b9b814a3c457a144b0
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---
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.../launcher3/util/PackageManagerHelper.java | 13 +++++++++++++
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1 file changed, 13 insertions(+)
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diff --git a/src/com/android/launcher3/util/PackageManagerHelper.java b/src/com/android/launcher3/util/PackageManagerHelper.java
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index 13034dd9ec..1c05c993c7 100644
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--- a/src/com/android/launcher3/util/PackageManagerHelper.java
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+++ b/src/com/android/launcher3/util/PackageManagerHelper.java
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@@ -26,6 +26,7 @@ import android.content.pm.PackageManager.NameNotFoundException;
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import android.content.pm.ResolveInfo;
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import android.net.Uri;
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import android.os.Build;
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+import android.os.Bundle;
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import android.os.UserHandle;
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import android.text.TextUtils;
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@@ -102,6 +103,18 @@ public class PackageManagerHelper {
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* any permissions
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*/
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public boolean hasPermissionForActivity(Intent intent, String srcPackage) {
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+ // b/270152142
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+ if (Intent.ACTION_CHOOSER.equals(intent.getAction())) {
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+ final Bundle extras = intent.getExtras();
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+ if (extras == null) {
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+ return true;
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+ }
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+ // If given intent is ACTION_CHOOSER, verify srcPackage has permission over EXTRA_INTENT
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+ intent = (Intent) extras.getParcelable(Intent.EXTRA_INTENT);
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+ if (intent == null) {
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+ return true;
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+ }
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+ }
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ResolveInfo target = mPm.resolveActivity(intent, 0);
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if (target == null) {
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// Not a valid target
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