high7.5
CVE-2018-12056
The maxRandom function of a smart contract implementation for All For One, an Ethereum gambling game, generates a random value with publicly readable variables…
Impact
The maxRandom function of a smart contract implementation for All For One, an Ethereum gambling game, generates a random value with publicly readable variables because the _seed value can be retrieved with a getStorageAt call. Therefore, it allows attackers to always win and get rewards.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| All-For-One | All For One | All versions |
Weakness classification
References
- NVD record
- CVE.org record
- https://lists.apache.org/thread.html/a62aa2706105d68f1c02023fe24aaa3c13b4d8a1826181fed07d9682%40%3Cnotifications.zookeeper.apache.org%3E
- https://medium.com/%40jonghyk.song/to-be-a-winner-of-ethereum-gambling-game-all-for-one-by-breaking-prng-1ab011163d40
- https://lists.apache.org/thread.html/a62aa2706105d68f1c02023fe24aaa3c13b4d8a1826181fed07d9682%40%3Cnotifications.zookeeper.apache.org%3E
- https://medium.com/%40jonghyk.song/to-be-a-winner-of-ethereum-gambling-game-all-for-one-by-breaking-prng-1ab011163d40