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7.5
CVE-2018-13630: DoccoinPreICO token lets owner set any user balance
CVE-2018-13630 · published 8 years ago
Summary
The DoccoinPreICO smart contract on Ethereum contains a coding mistake that lets the contract owner assign any amount of tokens to any user. This could let the owner give themselves or others unlimited tokens, affecting the token’s value and fairness. Review the contract code and update it to prevent this behavior, or stop using the contract until it is fixed.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| doccoinpreico_project | doccoinpreico |
All versions
cpe:2.3:a:doccoinpreico_project:doccoinpreico:-:*:*:*:*:*:*:* |
Original advisory text
The mintToken function of a smart contract implementation for DoccoinPreICO, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user...
The mintToken function of a smart contract implementation for DoccoinPreICO, an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.
References
- https://github.com/BlockChainsSecurity/EtherTokens/blob/master/GEMCHAIN/mint%20i... Exploit Third Party Advisory
- https://github.com/BlockChainsSecurity/EtherTokens/tree/master/DoccoinPreICO Third Party Advisory
Internet-facing
14 days
Internal
60 days
- Not known to be exploited
- Can be exploited automatically (estimated)
- Gives an attacker partial control (estimated)
Type
CWE-190Integer Overflow
Timeline
Published9 Jul 2018
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2018-13630 · NVD
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