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CVE-2018-12885

N/A
Published: August 7, 2018 at 03:00 PM UTC
Updated: June 17, 2026 at 01:38 AM UTC
1 product affected across 1 vendorMycryptochamp

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Severity
N/A
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

x_refsource_MISCThird Party Advisory
Source: [email protected]
https://etherscan.io/address/0x689FB61845488297dfE7586E5f7956475955d2Dc
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://etherscan.io/address/0xa44e464b13280340904ffef0a65b8a0033460430
x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://medium.com/coinmonks/get-legendary-items-by-breaking-pnrg-of-mycyptochamp-an-ethereum-online-game-cve-2018-12855-6e6beb41b8df

CVSS

4.3MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-338

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