IF A SINGLE ORDER FAILS, THE WHOLE FUNCTION REVERTS

Lines of code Vulnerability details Impact If a single order of the orders array fails, the whole function initiate or exit reverts with no information about which was the vulnerable order, the only information given is an Exception with a code of 5 Proof of Concept Tools Used editor Recommended...

Fee-on-transfer tokens not supported

Lines of code Vulnerability details Impact Incorrect accounting will lead to wrong assets distribution and some users gaining more and some users getting fewer tokens than they should. Proof of Concept Functions rely on user input to calculate distribution of tokens instead of relying on the...

Collateral limit can be exceeded on a new auction

Lines of code Vulnerability details Witch's auction checks the total collateral limit before updating the structure with the current auction's data. This way this limit end up not being respected in result of auction call and can be actually breached for an arbitrary big amount as auction.ink tha...

fractionPrice precision can be lost if fractional tokens supply is high enough

Lines of code Vulnerability details Buyout's start now determine fractional token price by dividing native tokens amount by total supply number. Whenever the supply is high enough the precision can be lost, leading to severe losses to buyout proposer as his staked fractional tokens can be valued ...

createCollectionFor doesn't transfer ownership to _controller that specified in the parameter.

Lines of code Vulnerability details Impact controller is supplied to the function parameter to be controller of the token and owner of the vault. But actually owner of the vault is VaultRegistry that can't control anything in the Vault. Proof of Concept function createCollectionFor bytes32...

Migration Module: Usage of withdrawContribution instead of leave before buyout

Lines of code Vulnerability details Impact HIGH - Assets can be compromised directly. One can use eth from the module for buyout process. Basically sending somebody else's eth from migration module to buyout module Proof of Concept proof of concept The proof of concepts shows a scenario where one...

dont use transfer ,instead use call

Lines of code Vulnerability details details To withdraw eth it uses transfer, this trnansaction will fail inevitably when : - The withdrwer smart contract does not implement a payable function. Withdrawer smart contract does implement a payable fallback which uses more than 2300 gas unit Thw...

It is possible to burn someone's vault tokens

Lines of code Vulnerability details Impact It is possible to burn someone's vault tokens. Exploit Scenario Let's say Alice and Bob have some vault tokens. For some reason, Bob didn't grab an ice-cream for Alice, therefore Alice wanted to revenge for that. So she decided to burn Bob's vault tokens...

Buyout griefing can block almost all functionalities

Lines of code Vulnerability details Impact Everyone can start a Buyout for a vault by paying only 1 wei. For the next 4 days no other Buyout can start. If someone is fast enough, they can start another griefing buyout as soon as one finishes, meaning that it's possible to block the functionality ...

Proposal commitment takes all fractional balance in Migration contract

Lines of code Vulnerability details Impact The Migration contract holds all fractional token balance of all proposals. Let's suppose a single vault has multiple proposals going on, and one gets committed. If the target price is satisfied, then a buyout starts // Checks if the current price is...

Upgraded Q -> H from 187 [1657760940788]

Judge has assessed an item in Issue 187 as High risk. The relevant finding follows: 1. rescueETH cannot rescue Ether rescueETH sends msg.value to the destination address, which means it requires the caller of rescueETH to provide the Ether to send. Essentially the owner is directly paying the...

Migration total supply reduction can be used to remove minority shareholders

Lines of code Vulnerability details As new total supply can be arbitrary, setting it significantly lower than current say to 100 when it was 1e9 before can be used to remove current minority shareholders, whose shares will end up being zero on a precision loss due to low new total supply value...

Uninitialized implementation for Vault can be destroyed

Lines of code Vulnerability details Impact Every Vault is a proxy of the same implementation contract. This implementation is deployed from VaultFactory but never initialized. /// @notice Initializes implementation contract constructor implementation = addressnew Vault; Someone can call init in t...

Migration Module: Re-enter commit using custom token

Lines of code Vulnerability details Impact HIGH - Assets can be compromised directly. One can drain eth out from migration module to buyout module using custom made FERC1155 token. Proof of Concept proof of concept: testCommitReenterpoc custom made FERC1155 for the attack The proof of concept sho...

In JBERC20PaymentTerminal.sol#_transferFrom(...) ignoring return value when IERC20(token).transferFrom(...)

Lines of code Vulnerability details In JBERC20PaymentTerminal.soltransferFrom... ignoring return value when IERC20token.transferFrom... Some of ERC20 token implementations return false upon unsuccess transfer like USDT token, this can lead to some unpredictable balances to rise up without actual...

State Variable Shadowing

Lines of code Vulnerability details Impact Check: shadowing-state Severity: High Confidence: High It is possible to use the same variable twice in Solidity, but it can lead to unintended side effects.The TestAllowance.sol contract inherits from TesTBaseWorkflow.sol. In the TestAllowance.sol...

Reentrancy issues on function distributePayoutsOf

Lines of code Vulnerability details Impact In the contract JBPayoutRedemptionPaymentTerminal, the function distributePayoutsOf calls the internal function distributePayoutsOf and this internal function perfoms a loop where is using the function distributeToPayoutSplitsOfhttps://githu...

Usage of insecure transfer/transferFrom

Lines of code Vulnerability details Proof of Concept This is a well known issue, the protocol uses at many parts the insecure transfer/safeTransfer for generic ERC20 tokens. Recommended Mitigation Steps Use OZ Safe Transfer --- The text was updated successfully, but these errors were encountered:...

Attacker may front-run acceptCounterOffer() cause users to take both original order and new one

Lines of code Vulnerability details Impact Function PuttyV2.acceptCounterOffer is used in case users see better deal and want to cancel their own order before filling the new one. But attacker can abuse this function by front-run calling fillOrder before it is cancelled in acceptCounterOffer...

Short Call Maker Asset Can Be Frozen

Lines of code Vulnerability details Impact The fillOrder function only checks that the floorAssetTokenIds.length must be 0 when a taker fill a short call order. In other words, it does not check whether order.floorTokens.length is 0 or not, which means that if the maker includes any address in...

Orders could be unable to be fulfilled due to insufficient fund/underlying when when filled

Lines of code Vulnerability details Orders could be unable to be fulfilled due to insufficient fund/underlying when when filled Proof of Concept Let's say on day 1, Alice created a long call order for 5 ERC721 Bored Apesid1, id2, id3, id4, id5, with premium 2.5 ETH. But there will be a gap betwee...

Underlying asset price oracle for CToken in BaseV1-periphery is inaccuarte

Lines of code Vulnerability details Impact Detailed description of the impact of this finding. Underlying asset price oracle for CToken in BaseV1-periphery is inaccuarte Proof of Concept Provide direct links to all referenced code in GitHub. Add screenshots, logs, or any other relevant proof that...

getBorrowRate must return rate per block but currently return rate per year

Lines of code Vulnerability details Impact getBorrowRate must return rate per block as defined in compound interest rate model but currently return rate per year. Defined here: Proof of Concept This is definition / @notice Calculates the current borrow interest rate per block @param cash The tota...

Sending 1 wei of cNote to the treasury can malfunction sweepInterest()

Lines of code Vulnerability details function sweepInterest external override if msg.sender != admin revert SenderNotAdminmsg.sender; //Total balance of Treasury = Note + CNote Balance, Exp memory exRate = Expmantissa: cnote.exchangeRateStored; //used stored interest rates in determining amount to...

Upgraded G -> M from 49 [1656600225781]

Judge has assessed an item in Issue 49 as Medium risk. The relevant finding follows: --- The text was updated successfully, but these errors were encountered: All reactions...

Failed transfer with low level call won't revert

Lines of code Vulnerability details In BaseV1-periphery.sol, the function safeTransferCANTO is as follows: function safeTransferCANTOaddress to, uint value internal bool success, = to.callvalue:valuenew bytes0; requiresuccess, "TransferHelper: ETHTRANSFERFAILED"; This function is utilized in a fe...

getSupplyRate returns rate per year instead of per block

Lines of code Vulnerability details Impact According to the documentation in InterestRateModel, getSupplyRate has to return the supply rate per block and the function supplyRatePerBlock in CToken directly returns the value of getSupplyRate. However, the rate per year is returned for NoteInterest...

BURNER_ROLE can burn any amount of ERC20MinterBurnerDecimals from an arbitrary address

Lines of code Vulnerability details Vulnerability details Proof of Concept Using the burnCoins function of ERC20MinterBurnerDecimals, an address with BURNERROLE can burn an arbitrary amount of tokens from any address. We believe this is unnecessary and poses a serious centralization risk. A...

Upgraded G -> M from 84 [1656428843011]

Judge has assessed an item in Issue 84 as Medium risk. The relevant finding follows: --- The text was updated successfully, but these errors were encountered: All reactions...

Upgraded Q -> M from 413 [1656340156818]

Judge has assessed an item in Issue 413 as Medium risk. The relevant finding follows: --- The text was updated successfully, but these errors were encountered: All reactions...

[H-03] Attacker can mint unbound amount of iPTs (on APWine)

Lines of code Vulnerability details Note that I've reported a similar vulnerability, on a different 'Principals' and POC\attack vector is a bit different. I will leave it to the judge to decide if these should be grouped as 1 report or not - but I wanted to be specific at the POC instead of...

ERC5095 redeem must check allowance with principalAmount instead of underlyingAmount

Lines of code Vulnerability details Impact ERC5095 redeem must check allowance with principalAmount instead of underlyingAmount. Allowing any user to redeem token of anybody freely. This is very critical, anyone can lost their money everytime without their acknowledgement. Proof of Concept functi...

[H-05] Not minting iPTs for lenders in several lend functions

Lines of code Vulnerability details Impact Using any of the lend function mentioned, will result in loss of funds to the lender - as the funds are transferred from them but no iPTs are sent back to them! Basically making lending via these external PTs unusable. Proof of Concept There is no mintin...

Potential interests are not distributed fairly among the zcTokens holders, nor taken as a protocol fee, but will be frozen in the redeemer contract

Lines of code Vulnerability details function authRedeem address u, uint256 m, address f, address t, uint256 a public authorizedIMarketPlacemarketPlace.marketsu, m, 0 returns bool // Get the principal token for the given market IERC5095 pt = IERC5095IMarketPlacemarketPlace.marketsu, m, 0; // Make...

Staking.setCurvePool() doesn't approve allowance when changes CURVE_POOL.

Lines of code Vulnerability details Impact Staking.setCurvePool doesn't approve allowance when changes CURVEPOOL. It will affect when users exchange asset through CURVEPOOL. Proof of Concept When initialize the contract, Staking contract approves CURVEPOOL here. But when admin updates CURVEPOOL...

User fund lose in addLiquidity() of LiquidityReserve by increasing (totalLockedValue / totalSupply()) to very large number by attacker

Lines of code Vulnerability details Impact Function addLiquidity suppose to do add Liquidity for the staking Token and receive lrToken in exchange. to calculate amount of IrToken codes uses this calculation: amountToMint = amount lrFoxSupply / totalLockedValue but it's possible for attacker to...

Illuminate PT redeeming do not return underlying to a user

Lines of code Vulnerability details In the second step of two step redeeming process, the underlying funds should be located in the Redeemer contract as external system burned the shares the Redeemer obtained from the Lender contract and returned underlying to Redeemer. Then Redeemer's Illuminate...

Removal of liquidity from the reserve can be griefed

Lines of code Vulnerability details Impact Users may be unable to withdraw/remove their liquidity from the LiquidityReserve if a user decides to grief the contract. Proof of Concept This is the only function in this contract that is able to unstake funds, so that they can be withdrawn/removed:...

Transfer the original underlying token back to the user but actually transfer from lender to redeemer

Lines of code Vulnerability details Impact Transfer the original underlying token back to the user but actually transfer from lender to redeemer. Underlying token may be locked forever and user may not receive their fund after redeeming. Proof of Concept // Transfer the original underlying token...

removeAddress doesn't decrease the contracts.length

Lines of code Vulnerability details Impact The contracts length will always increase because the removeAddress function just deleting the value inside the array and never decrease the length by calling pop method. This can lead to Dos when calling functions that doing loop on contracts storage:...

Upgraded Q -> M from 104 [1656258768065]

Judge has assessed an item in Issue 104 as Medium risk. The relevant finding follows: L01: Silent overflow of fCashAmount Line References Description If a fCashAmount value that is greater than uint88 is passed into the mint function, downcasting it to uint88 will silently overflow. Recommended...

No check for set with address(0)

Lines of code Vulnerability details Impact can mint and get approve from address 0. Proof of Concept function setMarketPlaceaddress m external authorizedadmin returns bool if marketPlace != address0 revert ExistsmarketPlace; marketPlace = m; return true; Tools Used None Recommended Mitigation Ste...

Griefing Attack by staking for any receipent

Lines of code Vulnerability details Impact Any user can grief attack and lock funds of victim by staking with victim address as recipient. Proof of Concept If warmup period is more than 1, it is possible to do this by staking with victim address as recipient with 1 wei amount, and increasing the...

Malicious NFT

Lines of code Vulnerability details Impact Anybody can create a vault which fractionalizes their NFT. However, this process should go through a whitelist and review process because a maliciously implemented NFT contracts can reclaim ownership of the contract despite it technically being 'owned' b...

Malicious Basket Could Be Used To Rug Fractionalized Token Holders

Lines of code Vulnerability details Proof-of-Concept The NibblVaultFactory.createVault accepts any NFT address or any Basket address. Therefore, an attacker could pass a malicious basket address during vault creation. function createVault address assetAddress, address curator, string memory name,...

Buy logic is not correct

Lines of code Vulnerability details Impact This will affect the curves from where the buy need to happen. This will lead to erroneous result. Proof of Concept Tools Used Manual calculation and code review Recommended Mitigation Steps Update the Buy logic by referring the sell logic. --- The text...

User Could Change The State Of The System While In Pause Mode

Lines of code Vulnerability details Proof-of-Concept Calling NibblVault.updateTWAP function will change the state of the system. It will cause the TWAP to be updated and buyout to be rejected in certain condition. When the system is in Pause mode, the system state should be frozen. However, it wa...

_getTwav is not correct. It is not considering all last 4 blocks.

Lines of code Vulnerability details Impact This will result in invalid deadline to decide the buyout end. Proof of Concept /// @notice returns the TWAV of the last 4 blocks /// @return twav TWAV of the last 4 blocks function getTwav internal view returnsuint256 twav if...

[PNM-005] Reentrancy of function sell

Lines of code Vulnerability details Description In function chargeFee, a potential reetrancy can be triggered by the factory. Since function sell invokes chargeFee in the middle of its function body, it potentially impacts the calculation, e.g., the totalSupply would be incorrect since the tokens...

NibblVault buyout duration longer than update timelock

Lines of code Vulnerability details Impact User can buy out NFT by initiating the process through initiateBuyout, then he has to wait BUYOUTDURATION which is 5 days and if the buyout will not get rejected he can claim the NFT. During that period bidder cannot cancel the process. The issue is that...