Anyone can withdraw others

Handle mics Vulnerability details Anyone can withdraw users shares. Although we think that they are sent to the right address, it is still 1 not the desired behavior 2 can be dangerous if the receiver is a smart contract 3 the receiver may not know someone withdraw him XOLE.withdrawReward...

Anyone can withdraw others

Handle robee Vulnerability details Anyone can withdraw users shares. Although we think that they are sent to the right address, it is still 1 not the desired behavior 2 can be dangerous if the receiver is a smart contract 3 the receiver may not know someone withdraw him...

Researchers warn of new Rug Pull scam through fraudulent crypto tokens

By Deeba Ahmed Another day another Rug Pull scam that involves exploiting of smart contract vulnerability. Scammers are exploiting misconfigurations in… This is a post from HackRead.com Read the original post: Researchers warn of new Rug Pull scam through fraudulent crypto tokens...

Out of gas.

Handle Jujic Vulnerability details Impact There is no upper limit on allMarkets, it increments each time when a new market is added. Eventually, as the count of markets increases, gas cost of smart contract calls will raise until reaching an "Out of Gas" error or a "Block Gas Limit" in the worst...

Iterating over large count numbers can cause out of gas errors

Handle jayjonah8 Vulnerability details Impact In XDEFIDistributionHelper.sol the getAllTokensForAccount function iterates over the count and performs actions on each iteration. Iterating over large arrays can cause out of gas failures and so the count number should be checked or limited to a max...

SAILFISH System to Find State-Inconsistency Bugs in Smart Contracts

A group of academics from the University of California, Santa Barbara, has demonstrated what it calls a "scalable technique" to vet smart contracts and mitigate state-inconsistency bugs, discovering 47 zero-day vulnerabilities on the Ethereum blockchain in the process. Smart contracts are program...

mintSynth and mintFungible function are not verified from==msg.sender

Handle cccz Vulnerability details Impact The mintSynth function and the mintFungible function are not verified from==msg.sender, causing anyone to use other people’s tokens to mint Synth or LP tokens for themselves Proof of Concept Tools Used Manual analysis Recommended Mitigation Steps Add the...

Out of gas.

Handle Jujic Vulnerability details There is no upper limit on poolColl.tokens, it increments each time when a new collateral is added. Eventually, as the count of collateral increases, gas cost of smart contract calls will raise and that there is no implemented function to reduce the array size...

Possibility to drain TwabRewards smart contract tokens (even with valid ticket)

Handle kemmio Vulnerability details Impact Possibility to drain all smart contract assets abusing uint256 overflow in updateClaimedEpoch Proof of Concept The vulnerability arises because of uint256 overflow in updateClaimedEpoch return userClaimedEpochs | uint2561 The attacker needs to have in...

Tokens with fee on transfer are not supported

Handle WatchPug Vulnerability details There are ERC20 tokens that charge fee for every transfer or transferFrom. In the current implementation, createPromotion assumes that the received amount is the same as the transfer amount, and uses it to calculate reward amounts. As a result, in claimReward...

Possibility to drain TwabRewards smart contract tokens

Handle kemmio Vulnerability details Impact Possibility to drain all smart contract assets abusing rogue ticket contract Proof of Concept The vulnerability arises because of inconsistent check of requireTicket in createPromotion requireTicketticket; function requireTicketaddress ticket internal vi...

Tokens can be stolen when depositToken == rewardToken

Handle cmichel Vulnerability details The Streaming contract allows the deposit and reward tokens to be the same token. I believe this is intended, think Sushi reward on Sushi as is the case with xSushi. The reward and deposit balances are also correctly tracked independently in depositTokenAmount...

A Software Bug Let Hackers Drain $31M From a Crypto Service

An attacker exploited a vulnerability in MonoX Finance's smart contract to inflate the price of its digital token and then cash out...

Smart Contract Bug Results in $31 Million Loss

A hacker stole $31 million from the blockchain company MonoX Finance , by exploiting a bug in software the service uses to draft smart contracts. Specifically, the hack used the same token as both the tokenIn and tokenOut, which are methods for exchanging the value of one token for another. MonoX...

Permissions - return values not checked when sending ETH

Handle ScopeLift Vulnerability details Impact On lines 85 and 101, ETH is transferred using a .call to an address provided as an input, but there is no verification that the call call succeeded. This can result in a call to emergencyWithdrawGAS or partialWithdrawGAS appearing successful but in...

transferFrom() and shareKey() doesn't check for _from != _recipient

Handle GiveMeTestEther Vulnerability details Impact / POC There is no check from != recipient in transferFrom https://github.com/code-423n4/2021-11-unlock/blob/ec41eada1dd116bcccc5603ce342257584bec783/smart-contracts/contracts/mixins/MixinTransfer.solL109 the key manager/approver can expire the k...

@biconomy/hyphen-contracts (1.0.4), @bobanetwork/contracts (0.0.2) +17 more potentially affected by unknown CVE via @openzeppelin/contracts-upgradeable (>=4.2.0, <=4.3.2)

@openzeppelin/contracts-upgradeable NPM version =4.2.0, =0.0.1, =0.5.0, =3.4.0, =1.1.2, =1.0.1, =1.1.2, =1.0.0, =0.8.1-pr-brioux-1333.92b26c3a.36, =1.0.5, =2.3.0, =2.0.0, =3.0.0-beta, =3.0.1 and more Source cves: unknown CVE Source advisory: OSV:GHSA-WMPV-C2JP-J2XG...

@avalabs/avalanche-wallet-sdk (>=0.9.5, <=0.10.2), @b0dhidharma/contract-utils (0.1.1) +66 more potentially affected by unknown CVE via @openzeppelin/contracts (>=4.2.0, <=4.3.2)

@openzeppelin/contracts NPM version =4.2.0, =0.9.5, =0.0.2, =0.0.1, =0.0.1, =1.0.0, =0.0.1, =1.1.0, =0.0.1, =3.0.0-alpha.2, =3.0.0-alpha.1, =3.0.0-alpha.1, =3.0.0-alpha.1, =3.0.0-alpha.4 and more Source cves: unknown CVE Source advisory: OSV:GHSA-WMPV-C2JP-J2XG...

CVE-2021-41264

OpenZeppelin Contracts is a library for smart contract development. In affected versions upgradeable contracts using UUPSUpgradeable may be vulnerable to an attack affecting uninitialized implementation contracts. A fix is included in version 4.3.2 of @openzeppelin/contracts and...

CVE-2021-41264

OpenZeppelin CVE-2021-41264 affects upgradeable contracts using UUPSUpgradeable due to uninitialized implementation contracts. The vulnerability is addressed in version 4.3.2 of @openzeppelin/contracts and @openzeppelin/contracts-upgradeable. If upgrading is not possible, a mitigation is to initi...