# dApp Threat Modeling [Berachain dApp Threat Model Docs](https://docs.google.com/document/d/1KbMM6HxdHg6tyFjH-XzKgbhk1LAySoxyB7OPdh6t8g0/edit?usp=sharing) This page provides a comprehensive analysis of how the core DApps within the Berachain ecosystem organically interact and create synergy. In particular, this page is written from the perspective of a DApp developer. Accordingly, elements in the threat modeling, such as Entity and Asset, have been selected to be practically helpful, focusing on targets that developers must directly define and protect through their code. On this page, you can find the following: * DApp Interaction DFD * This is an overall architecture diagram showing how Berachain's main DApps—`BEX`, `Kodiak`, `Beraborrow`, and `Infrared`—exchange data and connect with each other. It provides an intuitive understanding of how a user's assets create new value as they move through each DApp and the synergistic effects that occur between the protocols. * Threat Modeling - DApp System-Centric * [`Entity`](#entity): Identifies the core smart contracts and Externally Owned Accounts (EOAs) that developers must directly implement and interact with. * [`Asset`](#asset): Defines core assets within the contract that developers must directly manage and protect, such as state variables, tokens, and administrative privileges. * [`Entry Point`](#entry-point): Identifies all paths through which external attacks can be initiated. * [`Scenarios`](#scenarios): Analyzes the system's security vulnerabilities through specific threat scenarios. ## DFD

{% embed url="" %} DFD Link {% endembed %} ## Entity

ID	Name	Description
`ET - 1`	Distributor	Manages the distribution logic for BGT and incentive tokens.
`ET - 2`	RewardVault	Receives LP token deposits and distributes BGT.
`ET - 3`	BlockReward Controller	Responsible for BGT issuance.
`ET - 4`	BGTIncentive Distributor	Distributes incentive tokens based on the amount of BGT issued.
`ET - 5`	BGTStaker	Manages BGT Boost and provides HONEY as a Boost reward.
`ET - 6`	CometBFT	Berachain's BFT consensus module.
`ET - 7`	BeaconDeposit	Processes BERA deposits for becoming a validator.
`ET - 8`	Operator	Entity to which validators delegate reward allocation and commission settings.
`ET - 9`	dApp owner	Entity that sends dApp fees to the FeeCollector.
`ET - 10`	Oracle	Entity that fetches the price of HONEY / NECT collateral.
`ET - 11`	Guardians	Entity that makes final decisions in governance.
`ET - 12`	BatchRelayer	Entity for batch processing of Balancer v2-based BEX operations.
`ET - 13`	BalancerRelayer	Entity that mediates Balancer v2-based BEX multicalls.
`ET - 14`	ProtocolFees Withdrawer	Withdraws fees for using the BEX protocol.
`ET - 15`	BEXAuthorizer	Approver for creating BEX liquidity pools.
`ET - 16`	KodiakIsland	Kodiak automated liquidity management Vault.
`ET - 17`	KodiakIsland Factory	Manager for creating KodiakIsland.
`ET - 18`	KodiakIsland WithRouter	Contract combining Kodiak's Island and Router functions.
`ET - 19`	IslandRouter	Contract for Kodiak users to supply liquidity to the Island.
`ET - 20`	KodiakFarm	Manages Kodiak reward distribution.
`ET - 21`	PandaFactory	Kodiak-based ERC-20 Meme coin launchpad.
`ET - 22`	UniswapV3Pool	UniswapV3-based liquidity pool contract within Kodiak.
`ET - 23`	Infrared	Manager of core Infrared functions.
`ET - 24`	InfraredBERA	Manages Infrared BERA tokens.
`ET - 25`	InfraredBERA Depositor	Manages Infrared BERA asset deposits.
`ET - 26`	InfraredBERA Claimor	Requester for claiming Infrared BERA rewards.
`ET - 27`	InfraredBERA Withdrawor	Manages Infrared BERA asset withdrawals.
`ET - 28`	InfraredBERA FeeReceivor	Manages Infrared fees.
`ET - 29`	Infrared Distributor	Manages Infrared reward distribution.
`ET - 30`	InfraredVault	Infrared rewards vault.
`ET - 31`	MultiReward	Manages Infrared multiple rewards.
`ET - 32`	BribeCollector	Manages Infrared protocol incentives.
`ET - 33`	CollVaultRouter	Manages Beraborrow loan processing.
`ET - 34`	DenManager	Beraborrow collateral processing system.
`ET - 35`	DebtToken	Manages Beraborrow loan LP tokens (NECT).
`ET - 36`	LiquidStability Pool	Beraborrow NECT staking pool.
`ET - 37`	CollectralVault	Beraborrow collateral LP token issuance vault.
`ET - 38`	Liquidation Manager	Manages Beraborrow liquidation logic.

## Asset

ID	Name	Description
`AT - 1`	BGT	A token that functions as governance and an economic incentive.
`AT - 2`	BERA	Native coin used for gas and deposits.
`AT - 3`	WBERA	Token that wraps BERA in the ERC-20 standard.
`AT - 4`	Fee Token	Token collected as fees from various dApps.
`AT - 5`	LP Token (Receipt Token)	Token that certifies liquidity provision to protocols like Bex.
`AT - 6`	Incentive Token	Token provided as a reward to BGT boosters.
`AT - 7`	HONEY	Berachain's native stablecoin.
`AT - 8`	iBERA	Infrared native BERA.
`AT - 9`	iBGT	Infrared native governance token.
`AT - 10`	Infrared Points	Additional reward points that can be earned for Infrared activities.
`AT - 11`	NECT	Beraborrow native stablecoin.
`AT - 12`	sNECT	LP token for Beraborrow NECT staking rewards.
`AT - 13`	Collaterals	Collateral available for Beraborrow loans.

## Entry Point

ID	Name	Description
`EP - 1`	joinPool	Starting point for supplying token pairs to the BEX liquidity pool.
`EP - 2`	exitPool	Starting point for withdrawing token pairs from the BEX liquidity pool.
`EP - 3`	onJoinPool	Supplies the specified token pair to the BEX liquidity pool.
`EP - 4`	onExitPool	Withdraws the supplied token pair from the BEX liquidity pool.
`EP - 5`	distributeAndWithdrawCollectedFees	The BEX Fee Collector sends the collected fees to the Berachain PoL's FeeCollector and FeeReceiver.
`EP - 6`	withdrawCollectedFee	Withdraws the fees collected by the BEX FeeCollector.
`EP - 7`	deposit	Deposits BERA into the protocol contract.
`EP - 8`	withdraw	Withdraws BERA from the protocol contract.
`EP - 9`	swap	Executes a single swap in the BEX liquidity pool.
`EP - 10`	batchSwap	Executes multiple swaps on the BEX liquidity pool at once.
`EP - 11`	queryBatchSwap	Schedules a BEX batchSwap operation.
`EP - 12`	create	Creates a new BEX liquidity pool.
`EP - 13`	setPOLFeeCollector Percentage	Sets the fee for the BEX pool.
`EP - 14`	executiveRebalance WithRouter	Pool rebalancing by the manager via the router.
`EP - 15`	addLiquidity	Supplies an ERC-20 token pair to the Kodiak liquidity pool.
`EP - 16`	addLiquidityNative	Supplies an ERC-20 - BERA token pair to the Kodiak liquidity pool.
`EP - 17`	addLiquiditySingle	Supplies single-sided liquidity to a Kodiak ERC-20 token pair pool.
`EP - 18`	addLiquiditySingle Native	Supplies single-sided liquidity to a Kodiak ERC-20 - BERA token pair pool.
`EP - 19`	removeLiquidity	Withdraws an ERC-20 token pair from the Kodiak liquidity pool.
`EP - 20`	removeLiquidityNative	Withdraws an ERC-20 - BERA token pair from the Kodiak liquidity pool.
`EP - 21`	KodiakFarm.stake	Stakes LP tokens in the Kodiak reward distribution vault.
`EP - 22`	KodiakFarm.withdraw	Withdraws LP tokens from the Kodiak reward distribution vault.
`EP - 23`	KodiakFarm.getReward	Claims accumulated reward tokens from the Kodiak reward distribution vault.
`EP - 24`	KodiakIsland FactorydeployVault	Deploys the Kodiak liquidity pool contract.
`EP - 25`	FarmFactorydeploy Farm	Deploys the Kodiak reward distribution vault contract.
`EP - 26`	InfraredVault.stake	Stakes LP tokens in the Infrared rewards vault.
`EP - 27`	InfraredVaultwithdraw	Withdraws LP tokens from the Infrared rewards vault.
`EP - 28`	getReward	Claims accumulated reward tokens from the Infrared rewards vault.
`EP - 29`	mint	Converts BERA to iBERA within Infrared.
`EP - 30`	redeem	Exchanges Base BGT for BERA and sends it to InfraredBERAFeeReceivor.
`EP - 31`	harvestVault	Harvests rewards from the RewardVault for a specific asset and issues iBGT.
`EP - 32`	harvestOperator Rewards	Distributes operator rewards accumulated in InfraredBERAFeeReceivor.
`EP - 33`	claimBGTIncentives	The Keeper claims incentive tokens from the BGTIncentiveDistributor.
`EP - 34`	harvestBribes	Moves incentive tokens from Infrared to the BribeCollector.
`EP - 35`	claimFees	Withdraws incentive tokens from the BribeCollector by paying WBERA.
`EP - 36`	collectBribes	Recovers WBERA from the BribeCollector to Infrared.
`EP - 37`	execute	Sends BERA externally when processing an Infrared user's withdrawal.
`EP - 38`	process	Processes requests in the Infrared withdrawal queue.
`EP - 39`	sweep	Sends accumulated BERA from InfraredBERAClaimor to the user.
`EP - 40`	claim	Claims BGT rewards corresponding to the validator's pubkey.
`EP - 41`	updateFee	Changes Infrared fees.
`EP - 42`	claimExternalVault Rewards	Requests rewards for a Vault that is not an Infrared Vault.
`EP - 43`	openDenVault	Creates a new CDP loan vault within Beraborrow.
`EP - 44`	adjustDenVault	Adjusts the collateral/debt of an existing CDP loan vault in Beraborrow.
`EP - 45`	closeDenVault	Closes a CDP loan vault in Beraborrow.
`EP - 46`	redeemCollateralVault	Repays a Beraborrow CDP loan.
`EP - 47`	redeemToOne	Withdraws all rewards earned from Beraborrow as a single token.
`EP - 48`	liquidate	Liquidates unhealthy CDP loan history within Beraborrow.
`EP - 49`	flashLoan	Executes the Flash Loan function within Beraborrow.
`EP - 50`	mint	Deposits NECT within Beraborrow to issue sNECT.
`EP - 51`	redeem	Burns sNECT within Beraborrow and returns NECT.
`EP - 52`	setParameters	Configures Beraborrow collateral assets and interest rates.
`EP - 53`	deposit	NECT deposit function within Beraborrow.
`EP - 54`	openDen	Creates a new CDP loan position within Beraborrow.
`EP - 55`	addColl	Sets collateral within a Beraborrow loan position.
`EP - 56`	withdrawColl	Withdraws collateral from a Beraborrow loan position.
`EP - 57`	withdrawDebt	Withdraws loan tokens from a Beraborrow loan position.
`EP - 58`	repayDebt	Repays loan tokens within a Beraborrow loan position.
`EP - 59`	adjustDen	Adjusts an existing Beraborrow CDP loan position.
`EP - 60`	startSunset	Function to close collateral within a Beraborrow loan position.
`EP - 61`	mintCap	Mints other stablecoins and the Beraborrow native stablecoin NECT at a 1:1 ratio.

## Scenarios {% hint style="info" %} Click the ID to check the security guidelines for that scenario. {% endhint %}

ID	Entry Point	Asset	Description
`S - 1`	`EP - 46` `EP - 52`	`AT - 11` `AT - 13`	A large-scale liquidation causes a sharp drop in the price of collateral assets, triggering a chain reaction that leads to more position liquidations.
`S - 2`	`EP - 50` `EP - 53`	`AT - 2` `AT - 11` `AT - 13`	An inflation attack is performed on an ERC-4626 vault with almost no total supply, causing losses to subsequent depositors' assets.
`S - 3`	`EP - 55` `EP - 56` `EP - 57` `EP - 58` `EP - 59`	`AT - 2` `AT - 5` `AT - 11` `AT - 13`	Bypassing the collateral ratio (ICR/TCR) verification logic allows bad loans even when the system is in Recovery Mode, causing system losses.
`S - 4`	`EP - 54`	`AT - 11` `AT - 13`	If the owner abuses their authority to maliciously change the protocol's critical parameters, problems such as excessive fee payments and increased risk of asset liquidation can occur.
`S - 5`	`EP - 13` `EP - 14` `EP - 15` `EP - 16`	`AT - 5`	When adding liquidity to a pool, if the actual value of the pool assets and the value of the issued LP tokens do not match, it results in profit or loss for new liquidity providers.
`S - 6`	`EP - 19` `EP - 20`	`AT - 1` `AT - 5`	Removing liquidity during a sharp price fluctuation causes the remaining liquidity in the pool to fall below the reference value or bypasses the minimum holding period to realize profits.
`S - 7`	`EP - 1` `EP - 2` `EP - 3` `EP - 4` `EP - 15` `EP - 16` `EP - 17` `EP - 18` `EP - 19` `EP - 20`	`AT - 5`	Repeated large deposits and withdrawals of a specific token cause the token ratio in the liquidity pool to collapse, leading to price distortion or depletion of some token liquidity.
`S - 8`	`EP - 9`	`AT - 2` `AT - 5`	Large trades cause unfavorable changes in the actual execution price, or errors in the minimum output calculation lead to losses.
`S - 9`	`EP - 13`	`AT - 5`	If an administrator suddenly changes the fee ratio or withdraws a large amount of fees, liquidity providers will incur losses.
`S - 10`	`EP - 14`	`AT - 3` `AT - 6`	During pool rebalancing, changing the state of some tokens and causing transaction failures results in a discrepancy between the pool invariant and the total supply.
`S - 11`	`EP - 29`	`AT - 2` `AT - 8`	Instantaneously manipulating the iBERA/BERA exchange ratio through large trades can lead to unfair gains, reducing protocol assets and undermining user trust, thus harming system stability.
`S - 12`	`EP - 41` `EP - 42`	`AT - 2` `AT - 5` `AT - 6`	Exploiting the timing of a protocol fee change to harvest large amounts of rewards immediately before/after the change can distort the reward distribution system, causing losses to users or the protocol's finances.
`S - 13`	`EP - 31` `EP - 35`	`AT - 6`	If a malicious token is used as a reward token in the Bribe system, it can contaminate the Bribe system and lead to malicious activities.
`S - 14`	`EP - 35`	`AT - 5` `AT - 9`	If staking funds are concentrated in a specific validator, it can lead to an imbalance in staking rewards and validator centralization.
`S - 15`	`EP - 15` `EP - 16` `EP - 17` `EP - 18` `EP - 48` `EP - 53`	`AT - 7` `AT - 11` `AT - 12` `AT - 13`	By exploiting the interdependence between Berachain's PoL mechanism and Beraborrow's multi-collateral lending system, an attacker can induce an imbalance in the target collateral pool through large DEX trades, followed by an ERC-4626 inflation attack to realize profits.
`S - 16`	`EP - 53` `EP - 61`	`AT - 7` `AT - 11` `AT - 12` `AT - 13`	When Berachain's native stablecoin HONEY de-pegs, an attacker can acquire a large amount of NECT at a low price through Beraborrow's PermissionlessPSM contract to realize profits, depleting the protocol's assets.
`S - 19`	`EP - 20` `EP - 21` `EP - 53` `EP - 54`	`AT - 1` `AT - 2` `AT - 8` `AT - 9`	When the LST token of Infrared, which holds about 62% of Berachain's BGT issuance, de-pegs, a chain reaction to the LST token's price drop causes a negative flywheel effect throughout the chain's ecosystem.
`S - 20`	`EP - 15` `EP - 16` `EP - 17` `EP - 18` `EP - 48` `EP - 53`	`AT - 5` `AT - 11` `AT - 12` `AT - 13`	Repeating large swaps in an LP with low pool TVL and high sensitivity to price impact distorts the reserve ratio, inducing artificial surges and drops in the LP price, leading to a chain liquidation of loan positions due to collateral value collapse.