CVE-2018-12081

CVE-2018-12081 affects the Target Coin (TGT) ERC20 token. The mintToken function has no period constraint, allowing the owner to arbitrarily increase total supply, enabling profit via inflation of assets. The vulnerability is defined in the NVD description and corroborated by multiple feeds; no e...

CVE-2018-12084

The mintToken function of a smart contract implementation for BitAsean BAS, a tradable Ethereum ERC20 token, has no period constraint, which allows the owner to increase the total supply of the digital assets arbitrarily so as to make profits, aka the "tradeTrap" issue...

CVE-2018-12084

The CVE-2018-12084 case concerns BitAsean (BAS), a tradable Ethereum ERC20 token. The vulnerability resides in the smart-contract mintToken function, which has no period/expiration constraint, enabling the owner to arbitrarily inflate the total supply and profit. Documents confirm the issue as th...

CVE-2018-12083

The CVE-2018-12083 entry concerns GOAL Bonanza (GOAL), an Ethereum ERC20 token whose smart-contract mintToken function has no period constraint, enabling the owner to arbitrarily increase total supply. This minting oversight creates a supply manipulation risk described as the tradeTrap. Affected ...

CVE-2018-12082

The mintToken function of a smart contract implementation for Fujinto NTO, a tradable Ethereum ERC20 token, has no period constraint, which allows the owner to increase the total supply of the digital assets arbitrarily so as to make profits, aka the "tradeTrap" issue...

CVE-2018-12067

The sell function of a smart contract implementation for Substratum SUB, a tradable Ethereum ERC20 token, allows a potential trap that could be used to cause financial damage to the seller, because of overflow of the multiplication of its argument amount and a manipulable variable sellPrice, aka...

CVE-2018-12062

SwftCoin (SWFTC), an ERC20 token, has a tradeTrap vulnerability in its sell function. The root cause is a multiplication overflow involving the argument amount and a manipulable sellPrice, enabling an attacker to cause financial damage to the seller. The issue is documented across multiple source...

CVE-2018-11446

CVE-2018-11446 describes a tradeTrap in the Gold Reward (GRX) ERC20 contract where the buy() path multiplies amount by buyPrice without SafeMath, enabling an overflow that can trap funds. The owner can set buyPrice via setPrices(), potentially manipulating prices and enabling arbitrage-like explo...

CVE-2018-12068

The CVE-2018-12068 issue concerns a math overflow in the sell() function of the Target Coin (TGT) ERC20 contract. The vulnerability arises from overflow in multiplying the argument amount by a manipulable sellPrice, enabling a potential trap (tradeTrap) that could cause financial damage to the se...

CVE-2018-12702

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem GVE, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the...

Design/Logic Flaw

The approveAndCallcode function of a smart contract implementation for Block 18 18T, an tradable Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the "evilReflex"...

Design/Logic Flaw

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem GVE, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the...

CVE-2018-12703

The CVE-2018-12703 vulnerability affects the approveAndCallcode flow in Block 18 (18T) ERC20 contracts. The issue is that _spender.call(_extraData) is not verified, enabling an attacker to hijack the callback and trigger arbitrary contract calls from the vulnerable contract. According to the Seeb...

CVE-2018-12702

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem GVE, an Ethereum ERC20 token, allows attackers to steal assets e.g., transfer the contract's balances into their account because the callcode i.e., spender.callextraData is not verified, aka the...

CVE-2018-12702

The CVE-2018-12702 entry concerns Globalvillage ecosystem (GVE) ERC20 contracts where approveAndCallcode allows an attacker to hijack a callback via a non-verified _spender.call(_extraData), enabling token transfers from the vulnerable contract (evilReflex). Connected sources describe the mechani...

Input validation

The transferFrom function of a smart contract implementation for FuturXE FXE, an Ethereum ERC20 token, allows attackers to accomplish an unauthorized transfer of digital assets because of a logic error. The developer messed up with the boolean judgment - if the input value is smaller than or equa...

CVE-2018-12025

The transferFrom function of a smart contract implementation for FuturXE FXE, an Ethereum ERC20 token, allows attackers to accomplish an unauthorized transfer of digital assets because of a logic error. The developer messed up with the boolean judgment - if the input value is smaller than or equa...

CVE-2018-12025

The transferFrom function of a smart contract implementation for FuturXE FXE, an Ethereum ERC20 token, allows attackers to accomplish an unauthorized transfer of digital assets because of a logic error. The developer messed up with the boolean judgment - if the input value is smaller than or equa...

CVE-2018-12025

The CVE-2018-12025 entry concerns FuturXE (FXE) ERC20 token. Connected sources provide concrete details: transferFrom is vulnerable due to a logic error in the allowance check—the condition if (allowed[from][msg.sender] >= value) return false misorders the logic, allowing an underflow on allow...

New multiOverflow Bug Identified in Multiple ERC20 Smart Contracts (CVE-2018-10706)

Our vulnerability-scanning system at PeckShield has so far discovered several dangerous smart contract vulnerabilities batchOverflow, proxyOverflow, transferFlaw, ownerAnyone. Some of them could be used by attackers to generate tokens out of nowhere while others can be used to steal tokens from...