Front running basket Creation

Handle goatbug Vulnerability details Impact Anyone can front run and create your basket, circumventing paying any initial fees. Proof of Concept Once proposeBasketLicense is called, anyone can subsequently call createBasket using that ID. Factory contract By calling it first you will avoid paying...

Zero fees

Handle goatbug Vulnerability details Impact The fees system is broken. Anyone can easily pay zero fees. Proof of Concept Create a bundle of two txs to be mined in one block. First tx calls mintTo with an extrememly small amount, handleFees is called and importantly lastFee = block.timestamp; Seco...

AT&T Phone-Unlocking Malware Ring Costs Carrier $200M

The ringleader of a seven-year phone-unlocking and malware scheme will head to the clink for 12 years, according to the Department of Justice, after effectively compromising AT&T’s internal networks to install credential-thieving malware. The perp, one Muhammad Fahd of Pakistan and Grenada, was...

Vault: Swaps at parity with swap fee = withdrawal fee

Handle hickuphh3 Vulnerability details Impact The vault treats all assets to be of the same price. Given that one can also deposit and withdraw in the same transaction, this offers users the ability to swap available funds held in the vault at parity, with the withdrawal protection fee 0.1%...

Settle Portfolio state could be griefed.

Handle tensors Vulnerability details Impact It could be possible for a user to get a portfolioState that is large enough to be unfeasible to compute, either because of the block gas limit or simply because gas fees are so high and the code itself is complex. If this is possible, than he could tak...

supplyTokenTo doesn't account for safeTransferFrom fees

Handle gpersoon Vulnerability details Impact The function supplyTokenTo of MStableYieldSource retrieves the tokens from the msg.sender and deposits them. However some tokens, like USDT might subtract a fee when transferring tokens. This means less tokens would be transferred than expected. If thi...

Deposits don't work with fee-on transfer tokens

Handle cmichel Vulnerability details There are ERC20 tokens that may make certain customizations to their ERC20 contracts. Some tokens charge a certain fee for every transfer or transferFrom. Others types are rebasing tokens that increase in value over time like Aave's aTokens balanceOf changes...

Swap fees are not accounted for if users swap directly from the pools

Handle shw Vulnerability details Impact The Pool calculates swap fees whenever there is a swap between the SPARTA and the TOKEN or synths. The Router uses this fee value to decide the amount of dividend transferred from the Reserve to the Pool. However, if a user performs the swap by directly...

Signatures use only tx ID instead of entire digest

Handle 0xRajeev Vulnerability details Impact The signature check in recoverFulfillSignature only uses transaction ID along with the relayer fee which can be accidentally reused by the user, in which case the older signatures with the older relayer fees can be replayed. The signature should be on...

A market's hourly average price can be biased by a large number of trades

Handle shw Vulnerability details Impact An attacker can artificially move a market's hourly average price i.e., the result of getHourlyAvgTracerPrice by executing a large number of trades on the market with only paying gas fees. Proof of Concept The hourly average price is calculated by the...

Malicious owner can arbitrarily change fee to any % value

Handle 0xRajeev Vulnerability details Impact Tracer protocol like any other allows market creators to charge fees for trades. However, a malicious/greedy owner can arbitrarily change fee to any % value and without an event to observe this change or a timelock to react, there is no easy way for...

User can redeem more tokens by artificially increasing the chi accrual

Handle shw Vulnerability details Impact A user can artificially increase the chi accrual after maturity by flash borrow on Compound, which affects the exchange rate used by the chi oracle. As a result, the user redeems more underlying tokens with the same amount of fyTokens since the accrual is...

Flash minting and burning can reduce the paid fees when purchasing a membership or opening a cost share request

Handle shw Vulnerability details Impact Users can pay fewer FSD tokens when purchasing a membership or opening a cost share request by flash minting and burning FSD tokens, which could significantly affect the FSD spot price. Proof of Concept The function getFSDPrice returns the current FSD price...

NFTXLPStaking Is Subject To A Flash Loan Attack That Can Steal Nearly All Rewards/Fees That Have Accrued For A Particular Vault

Handle jvaqa Vulnerability details NFTXLPStaking Is Subject To A Flash Loan Attack That Can Steal Nearly All Rewards/Fees That Have Accrued For A Particular Vault Impact The LPStaking contract does not require that a stake be locked for any period of time. The LPStaking contract also does not tra...

A malicious receiver can cause another receiver to lose out on distributed fees by returning false for tokensReceived when receiveRewards is called on their receiver contract.

Handle janbro Vulnerability details Summary A malicious receiver can cause another receiver to lose out on distributed fees by returning false for tokensReceived when receiveRewards is called on their receiver contract. Risk Rating Medium Vulnerability Details A malicious receiver can cause anoth...

Missing overflow check in flashLoan

Handle @cmichelio Vulnerability details Vulnerability Details ERC20FlashMintUpgradeable.flashLoan does not check for an overflow when adding the fees to the flashloan amount. The functionality might have been copied from but this one already has overflow checks as it uses solidity 0.8.0. Impact...

Promising Infusions of Cash, Fake Investor John Bernard Walked Away With $30M

September featured two stories on a phony tech investor named John Bernard, a pseudonym used by a convicted thief named John Clifton Davies whos fleeced dozens of technology companies out of an estimated $30 million with the promise of lucrative investments. Those stories prompted a flood of tips...

CompTIA Certification Prep Courses – Get Lifetime Access @ 98% Discount

In the world of professional IT, recruiters look for certificates as an important criterion for eligibility and assessing skills. Any IT professional with résumé that includes CompTIA certificates tends to rise up the pile. Of course, there are many different CompTIA exams you can choose from bas...

Ledger SAS Live Code Issue Vulnerability

Ledger SAS Live is a cryptocurrency wallet product from the French company Ledger SAS. A security vulnerability exists in Ledger SAS Live versions prior to 2.7.0. Unprocessed Bitcoin's Replacement of Fees RBF, which increases a user's balance with the value of an unconfirmed transaction immediate...

CVE-2020-14199

The CVE-2020-14199 issue is a BIP-143 signing mishandling in the Bitcoin protocol that can mislead users into producing two signatures during Segwit transactions. Affected products are Trezor One firmware before 1.9.1 and Trezor Model T firmware before 2.3.1; these devices have firmware updates t...