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082bc48c32
https://review.lineageos.org/q/topic:P_asb_2022-05 https://review.lineageos.org/q/topic:P_asb_2022-06 https://review.lineageos.org/q/topic:P_asb_2022-07 https://review.lineageos.org/q/topic:P_asb_2022-08 https://review.lineageos.org/q/topic:P_asb_2022-09 https://review.lineageos.org/q/topic:P_asb_2022-10 https://review.lineageos.org/q/topic:P_asb_2022-11 https://review.lineageos.org/q/topic:P_asb_2022-12 https://review.lineageos.org/q/topic:P_asb_2023-01 https://review.lineageos.org/q/topic:P_asb_2023-02 https://review.lineageos.org/q/topic:P_asb_2023-03 https://review.lineageos.org/q/topic:P_asb_2023-04 https://review.lineageos.org/q/topic:P_asb_2023-05 https://review.lineageos.org/q/topic:P_asb_2023-06 https://review.lineageos.org/q/topic:P_asb_2023-07 accounted for via manifest change: https://review.lineageos.org/c/LineageOS/android_external_freetype/+/361250 https://review.lineageos.org/q/topic:P_asb_2023-08 accounted for via manifest change: https://review.lineageos.org/c/LineageOS/android_external_freetype/+/364606 accounted for via patches: https://review.lineageos.org/c/LineageOS/android_system_ca-certificates/+/365328 https://review.lineageos.org/q/topic:P_asb_2023-09 https://review.lineageos.org/q/topic:P_asb_2023-10 https://review.lineageos.org/q/topic:P_asb_2023-11 accounted for via patches: https://review.lineageos.org/c/LineageOS/android_system_ca-certificates/+/374916 https://review.lineageos.org/q/topic:P_asb_2023-12 https://review.lineageos.org/q/topic:P_asb_2024-01 https://review.lineageos.org/q/topic:P_asb_2024-02 https://review.lineageos.org/q/topic:P_asb_2024-03 https://review.lineageos.org/q/topic:P_asb_2024-04 Signed-off-by: Tavi <tavi@divested.dev>
39 lines
2.0 KiB
Diff
39 lines
2.0 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, 3 Mar 2022 18:24:37 +0000
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Subject: [PATCH] Verify caller before auto granting slice permission
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Currently SliceManagerService#checkSlicePermission does not verify the
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caller's identity. This leads to a security vulnerability because
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checkSlicePermission does more than checking the permission as opposed
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to simply return a boolean value -- it additionally grants slice access
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under a certain condition. A malicious app can spoof the calling package
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to acquire slice access.
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This CL verifies the caller before granting slice access.
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Bug: 208232850, 179699767
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Test: manual
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Change-Id: I2539c9ff5ea977c91bb58185c95280b4d533a520
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Merged-In: I2539c9ff5ea977c91bb58185c95280b4d533a520
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(cherry picked from commit 5bd2196c537ae42a5c1626bdc23c3c6db41fb97f)
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(cherry picked from commit 3c92d74d7d74e1d781ae1b071da97b3b2cbc6be9)
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Merged-In: I2539c9ff5ea977c91bb58185c95280b4d533a520
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---
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.../core/java/com/android/server/slice/SliceManagerService.java | 2 ++
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1 file changed, 2 insertions(+)
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diff --git a/services/core/java/com/android/server/slice/SliceManagerService.java b/services/core/java/com/android/server/slice/SliceManagerService.java
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index f5947ee35ea4..158e6a59ac48 100644
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--- a/services/core/java/com/android/server/slice/SliceManagerService.java
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+++ b/services/core/java/com/android/server/slice/SliceManagerService.java
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@@ -239,6 +239,8 @@ public class SliceManagerService extends ISliceManager.Stub {
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if (autoGrantPermissions != null) {
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// Need to own the Uri to call in with permissions to grant.
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enforceOwner(pkg, uri, userId);
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+ // b/208232850: Needs to verify caller before granting slice access
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+ verifyCaller(pkg);
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for (String perm : autoGrantPermissions) {
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if (mContext.checkPermission(perm, pid, uid) == PERMISSION_GRANTED) {
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int providerUser = ContentProvider.getUserIdFromUri(uri, userId);
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