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....
HighCVSS 7.5
EPSS 1.1%
- Published
- Updated
- Exploit status
- No public exploit known
Description
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.call(_extraData)) is not verified, aka the "evilReflex" issue. NOTE: a PeckShield disclosure states "some researchers have independently discussed the mechanism of such vulnerability."
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gve globalvillage ecosystem | All versions | No fix listed |
References
- huobiglobal.zendesk.com third-party-advisory
- peckshield.com exploit third-party-advisory