fix(x/authz,x/feegrant): check blocked address (backport #20102) (#20114)

Co-authored-by: Julien Robert <[email protected]>

Author: mergify[bot]

CHANGELOG.md

@@ -37,10 +37,11 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
-## [v0.47.11](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.11) - 2024-04-18
+## [v0.47.11](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.11) - 2024-04-22
 
 ### Bug Fixes
 
+* (x/feegrant,x/authz) [#20114](https://github.com/cosmos/cosmos-sdk/pull/20114) Follow up of [GHSA-4j93-fm92-rp4m](https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-4j93-fm92-rp4m). The same issue was found in `x/feegrant` and `x/authz` modules.
 * (crypto) [#20027](https://github.com/cosmos/cosmos-sdk/pull/20027) secp256r1 keys now implement gogoproto's customtype interface.
 * (x/gov) [#19725](https://github.com/cosmos/cosmos-sdk/pull/19725) Fetch a failed proposal tally from `proposal.FinalTallyResult` in the gprc query.
 * (crypto) [#19691](https://github.com/cosmos/cosmos-sdk/pull/19746) Throw an error when signing with incorrect Ledger.

RELEASE_NOTES.md

@@ -8,7 +8,8 @@ For this month patch release of the v0.47.x line, a few bug were fixed in the SD
 Notably:
 
 * `secp256r1` keys now implement gogoproto's customtype interface.
-* Throw an error when signing with incorrect Ledger.
+* CLI now throws an error when signing with an incorrect Ledger.
+* Fixing [GHSA-4j93-fm92-rp4m](https://github.com/cosmos/cosmos-sdk/security/advisories/GHSA-4j93-fm92-rp4m) in `x/feegrant` and `x/authz` modules. The upgrade instuctions were provided in the [v0.47.9 release notes](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.9).
 
 Check out the [changelog](https://github.com/cosmos/cosmos-sdk/blob/v0.47.11/CHANGELOG.md) for an exhaustive list of changes or [compare changes](https://github.com/cosmos/cosmos-sdk/compare/v0.47.10...v0.47.11) from last release.
 

x/authz/expected_keepers.go

@@ -16,4 +16,5 @@ type AccountKeeper interface {
 type BankKeeper interface {
 	SpendableCoins(ctx sdk.Context, addr sdk.AccAddress) sdk.Coins
 	IsSendEnabledCoins(ctx sdk.Context, coins ...sdk.Coin) error
+	BlockedAddr(addr sdk.AccAddress) bool
 }

x/authz/keeper/keeper.go

@@ -28,6 +28,7 @@ type Keeper struct {
 	cdc        codec.BinaryCodec
 	router     *baseapp.MsgServiceRouter
 	authKeeper authz.AccountKeeper
+	bankKeeper authz.BankKeeper
 }
 
 // NewKeeper constructs a message authorization Keeper
@@ -40,6 +41,13 @@ func NewKeeper(storeKey storetypes.StoreKey, cdc codec.BinaryCodec, router *base
 	}
 }
 
+// Super ugly hack to not be breaking in v0.50 and v0.47
+// DO NOT USE.
+func (k Keeper) SetBankKeeper(bk authz.BankKeeper) Keeper {
+	k.bankKeeper = bk
+	return k
+}
+
 // Logger returns a module-specific logger.
 func (k Keeper) Logger(ctx sdk.Context) log.Logger {
 	return ctx.Logger().With("module", fmt.Sprintf("x/%s", authz.ModuleName))

x/authz/keeper/keeper_test.go

@@ -66,8 +66,9 @@ func (s *TestSuite) SetupTest() {
 	s.bankKeeper = authztestutil.NewMockBankKeeper(ctrl)
 	banktypes.RegisterInterfaces(s.encCfg.InterfaceRegistry)
 	banktypes.RegisterMsgServer(s.baseApp.MsgServiceRouter(), s.bankKeeper)
+	s.bankKeeper.EXPECT().BlockedAddr(gomock.Any()).Return(false).AnyTimes()
 
-	s.authzKeeper = authzkeeper.NewKeeper(key, s.encCfg.Codec, s.baseApp.MsgServiceRouter(), s.accountKeeper)
+	s.authzKeeper = authzkeeper.NewKeeper(key, s.encCfg.Codec, s.baseApp.MsgServiceRouter(), s.accountKeeper).SetBankKeeper(s.bankKeeper)
 
 	queryHelper := baseapp.NewQueryServerTestHelper(s.ctx, s.encCfg.InterfaceRegistry)
 	authz.RegisterQueryServer(queryHelper, s.authzKeeper)

x/authz/keeper/msg_server.go

@@ -21,6 +21,10 @@ func (k Keeper) Grant(goCtx context.Context, msg *authz.MsgGrant) (*authz.MsgGra
 	// create the account if it is not in account state
 	granteeAcc := k.authKeeper.GetAccount(ctx, grantee)
 	if granteeAcc == nil {
+		if k.bankKeeper.BlockedAddr(grantee) {
+			return nil, sdkerrors.ErrUnauthorized.Wrapf("%s is not allowed to receive funds", grantee)
+		}
+
 		granteeAcc = k.authKeeper.NewAccountWithAddress(ctx, grantee)
 		k.authKeeper.SetAccount(ctx, granteeAcc)
 	}

x/authz/module/module.go

@@ -113,7 +113,7 @@ type AppModule struct {
 func NewAppModule(cdc codec.Codec, keeper keeper.Keeper, ak authz.AccountKeeper, bk authz.BankKeeper, registry cdctypes.InterfaceRegistry) AppModule {
 	return AppModule{
 		AppModuleBasic: AppModuleBasic{cdc: cdc},
-		keeper:         keeper,
+		keeper:         keeper.SetBankKeeper(bk), // Super ugly hack to not be api breaking in v0.50 and v0.47,
 		accountKeeper:  ak,
 		bankKeeper:     bk,
 		registry:       registry,

x/authz/testutil/expected_keepers_mocks.go

@@ -19,4 +19,5 @@ type AccountKeeper interface {
 type BankKeeper interface {
 	SpendableCoins(ctx sdk.Context, addr sdk.AccAddress) sdk.Coins
 	SendCoinsFromAccountToModule(ctx sdk.Context, senderAddr sdk.AccAddress, recipientModule string, amt sdk.Coins) error
+	BlockedAddr(addr sdk.AccAddress) bool
 }

x/feegrant/expected_keepers.go

@@ -21,6 +21,7 @@ type Keeper struct {
 	cdc        codec.BinaryCodec
 	storeKey   storetypes.StoreKey
 	authKeeper feegrant.AccountKeeper
+	bankKeeper feegrant.BankKeeper
 }
 
 var _ ante.FeegrantKeeper = &Keeper{}
@@ -34,6 +35,13 @@ func NewKeeper(cdc codec.BinaryCodec, storeKey storetypes.StoreKey, ak feegrant.
 	}
 }
 
+// Super ugly hack to not be breaking in v0.50 and v0.47
+// DO NOT USE.
+func (k Keeper) SetBankKeeper(bk feegrant.BankKeeper) Keeper {
+	k.bankKeeper = bk
+	return k
+}
+
 // Logger returns a module-specific logger.
 func (k Keeper) Logger(ctx sdk.Context) log.Logger {
 	return ctx.Logger().With("module", fmt.Sprintf("x/%s", feegrant.ModuleName))
@@ -44,6 +52,10 @@ func (k Keeper) GrantAllowance(ctx sdk.Context, granter, grantee sdk.AccAddress,
 	// create the account if it is not in account state
 	granteeAcc := k.authKeeper.GetAccount(ctx, grantee)
 	if granteeAcc == nil {
+		if k.bankKeeper.BlockedAddr(grantee) {
+			return sdkerrors.Wrapf(sdkerrors.ErrUnauthorized, "%s is not allowed to receive funds", grantee)
+		}
+
 		granteeAcc = k.authKeeper.NewAccountWithAddress(ctx, grantee)
 		k.authKeeper.SetAccount(ctx, granteeAcc)
 	}

x/feegrant/keeper/keeper.go

@@ -26,6 +26,7 @@ type KeeperTestSuite struct {
 	atom           sdk.Coins
 	feegrantKeeper keeper.Keeper
 	accountKeeper  *feegranttestutil.MockAccountKeeper
+	bankKeeper     *feegranttestutil.MockBankKeeper
 }
 
 func TestKeeperTestSuite(t *testing.T) {
@@ -41,12 +42,13 @@ func (suite *KeeperTestSuite) SetupTest() {
 	// setup gomock and initialize some globally expected executions
 	ctrl := gomock.NewController(suite.T())
 	suite.accountKeeper = feegranttestutil.NewMockAccountKeeper(ctrl)
-	suite.accountKeeper.EXPECT().GetAccount(gomock.Any(), suite.addrs[0]).Return(authtypes.NewBaseAccountWithAddress(suite.addrs[0])).AnyTimes()
-	suite.accountKeeper.EXPECT().GetAccount(gomock.Any(), suite.addrs[1]).Return(authtypes.NewBaseAccountWithAddress(suite.addrs[1])).AnyTimes()
-	suite.accountKeeper.EXPECT().GetAccount(gomock.Any(), suite.addrs[2]).Return(authtypes.NewBaseAccountWithAddress(suite.addrs[2])).AnyTimes()
-	suite.accountKeeper.EXPECT().GetAccount(gomock.Any(), suite.addrs[3]).Return(authtypes.NewBaseAccountWithAddress(suite.addrs[3])).AnyTimes()
+	for i := 0; i < len(suite.addrs); i++ {
+		suite.accountKeeper.EXPECT().GetAccount(gomock.Any(), suite.addrs[i]).Return(authtypes.NewBaseAccountWithAddress(suite.addrs[i])).AnyTimes()
+	}
+	suite.bankKeeper = feegranttestutil.NewMockBankKeeper(ctrl)
+	suite.bankKeeper.EXPECT().BlockedAddr(gomock.Any()).Return(false).AnyTimes()
 
-	suite.feegrantKeeper = keeper.NewKeeper(encCfg.Codec, key, suite.accountKeeper)
+	suite.feegrantKeeper = keeper.NewKeeper(encCfg.Codec, key, suite.accountKeeper).SetBankKeeper(suite.bankKeeper)
 	suite.ctx = testCtx.Ctx
 	suite.msgSrvr = keeper.NewMsgServerImpl(suite.feegrantKeeper)
 	suite.atom = sdk.NewCoins(sdk.NewCoin("atom", sdk.NewInt(555)))

x/feegrant/keeper/keeper_test.go

@@ -121,7 +121,7 @@ type AppModule struct {
 func NewAppModule(cdc codec.Codec, ak feegrant.AccountKeeper, bk feegrant.BankKeeper, keeper keeper.Keeper, registry cdctypes.InterfaceRegistry) AppModule {
 	return AppModule{
 		AppModuleBasic: AppModuleBasic{cdc: cdc},
-		keeper:         keeper,
+		keeper:         keeper.SetBankKeeper(bk), // Super ugly hack to not be api breaking in v0.50 and v0.47,
 		accountKeeper:  ak,
 		bankKeeper:     bk,
 		registry:       registry,