Improper Token Balance Check on swap()

Lines of code Vulnerability details Improper Token Balance Check on swap Description The swap can be separated in 2 paths, swap native to ERC20, or swap ERC20 to native. The contract performs a fromAssetId balance check before calling swap, mean that the attacker could periodically check for ERC2...

Withdrawal Requests Can Be Bypassed

Lines of code Vulnerability details Impact Withdrawals can be initiated by accounts by calling the initiateWithdrawal function. A block delay is enforced with an expiration to prevent flash loan attacks on the protocol. However, because withdrawal requests are conducted on the account's token...

Fee-on-transfer/deflationary tokens cause problems

Lines of code Vulnerability details Some ERC20 tokens, such as USDT, allow for charging a fee any time transfer or transferFrom is called. If a contract does not allow for amounts to change after transfers, subsequent transfer operations based on the original amount will revert due to the contrac...

[WP-H4] anchor_basset_reward pending yields can be stolen

Lines of code Vulnerability details For yield farming aggregators, if the pending yield on an underlying strategy can be harvested and cause a surge of rewards to all existing investors, especially if the harvest can be triggered permissionlessly. Then the attacker can amplify the attack using a...

bEth Rewards May Be Depleted By Flashloans or Whales

Lines of code Vulnerability details Impact Rewards are dispersed to users as a percentage of the user's balance vs total balance of bEth. Rewards are accumulated each time a user calls executedecreasebalance, executeincreasebalance or executeclaimrewards as these functions will in term call...

Rewards can be stolen from contract

Lines of code Vulnerability details It was observed that executeclaimrewards/executedecreasebalance/executeincreasebalance are missing to update the global index before calculating user rewards in anchorbassetreward contract This can lead to serious consequences: 1. executeincreasebalance functio...

PT-2022-7614

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to commit 5e70bc8 Description The vulnerability is related to the btrfs file system in the Linux kernel. It occurs when a pending balance is waiting to get the cleaner mutex, and a snapshot deletion is running, and...

first depositor of the insurance fund can drain the other depositors

Lines of code Vulnerability details in deposit, when the ratio totalSupply / balance is very high, the amount of the minted shares can round down to zero. Proof of Concept Alice is the first one to deposit to the insurance fund. she deposits 1 basic unit of vusd 10-6 dollar, therefore minting one...

This CISO Isn’t Real, But His Problems Sure Are

In 2021, data breaches soared past 2020 levels. This year, it’s expected to be worse. The odds are stacked against this poor guy and you now – but a unified extended detection and response XDR and SIEM restacks them in your favor. Take a few minutes to check out this CISO’s day, and you’ll see ho...

NestedFactory: User can utilise accidentally sent ETH funds via processOutputOrders() / processInputAndOutputOrders()

Lines of code Vulnerability details Impact Should a user accidentally send ETH to the NestedFactory, anyone can utilise it to their own benefit by calling processOutputOrders / processInputAndOutputOrders. This is possible because: 1. receive has no restriction on the sender 2. processOutputOrder...

CVE-2022-24916

Optimism before @eth-optimism/[email protected] allows economic griefing because a balance is duplicated upon contract self-destruction...

CVE-2022-24916

Optimism before @eth-optimism/[email protected] allows economic griefing because a balance is duplicated upon contract self-destruction...

CVE-2022-24916

Optimism before @eth-optimism/[email protected] allows economic griefing because a balance is duplicated upon contract self-destruction...

CVE-2022-24916

Optimism before @eth-optimism/[email protected] allows economic griefing because a balance is duplicated upon contract self-destruction...

CVE-2022-24916

CVE-2022-24916 concerns Optimism before @eth-optimism/[email protected], where a balance can be duplicated upon contract self-destruction, enabling economic griefing. Affected software/component: Optimism’s L2Geth fork (l2geth) used by the Optimism stack. Root cause: balance duplication triggered by ...

CVE-2022-24916: Undefined Security Weakness

Optimism before @eth-optimism/[email protected] allows economic griefing because a balance is duplicated upon contract self-destruction...

ConvexStakingWrapper._calcRewardIntegral() Has An Accounting Error When Updating reward.remaining

Lines of code Vulnerability details Impact The ConvexStakingWrapper.sol implementation makes several modifications to the original design. One of the key changes is the way rewards are distributed to stakers. A new ConcurRewardPool.sol contract is used to store rewards, allowing users to claim...

[WP-H2] Funds can be frozen when critical key holders lose access to their keys

Lines of code Vulnerability details The current implementation requires trusted key holders Owner to send transactions finalize to finalize the sale before the buyers can claim the tokenOut from the contract. function finalize external onlyOwner require!finalized, "TokenSale: already finalized";...

TokenInLimit can be set arbitrarily high even if the contract doesn't have enough tokens to sell.

Lines of code Vulnerability details Impact If totalTokenOutBought tokenOut.balanceOfaddressthis the finalize function will forever revert and no-one will be able to claim their bought tokens. Proof of Concept TokenInLimit can be set arbitrarily high even if the contract doesn't have enough tokens...

Zero tokenOut balance = rug pull

Lines of code Vulnerability details Impact The only time that the Badger Citadel contract checks that the balance of tokenOut is greater than or equal to totalTokenOutBought is in the finalize function, which happens at the end of the sale. A contract owner can start a token sale but never send...