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CVE-2018-12885

Published: Aug 7, 2018

Modified: Aug 5, 2024

PUBLISHED

Description

The randMod() function of the smart contract implementation for MyCryptoChamp, an Ethereum game, generates a random value with publicly readable variables such as the current block information and a private variable, (which can be read with a getStorageAt call). Therefore, attackers can get powerful champs/items and get rewards.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430

x_refsource_MISC

https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8df

x_refsource_MISC

https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2Dc

x_refsource_MISC

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