CVE-2018-12056

EUVD-2018-4039
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.
PRNG
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 58%
Affected Products (NVD)
VendorProductVersion
all-for-oneall_for_one
-
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
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