CVE-2018-12975

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Summary

CVECVE-2018-12975
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-09-24 22:29:00 UTC
Updated2023-11-07 02:52:00 UTC
DescriptionThe random() function of the smart contract implementation for CryptoSaga, an Ethereum game, generates a random value with publicly readable variables such as timestamp, the current block's blockhash, and a private variable (which can be read with a getStorageAt call). Therefore, attackers can precompute the random number and manipulate the game (e.g., get powerful characters or get critical damages).

Risk And Classification

Problem Types: CWE-338

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cryptosaga Cryptosaga - All All All
Application Cryptosaga Cryptosaga - All All All

References

ReferenceSourceLinkTags
Create legendary champs by breaking PRNG of Cryptosaga, an Ethereum RPG game (CVE-2018–12975) | by Jonghyuk Song | Medium medium.com
Create legendary champs by breaking PRNG of Cryptosaga, an Ethereum RPG game (CVE-2018–12975) | by Jonghyuk Song | Medium MISC medium.com Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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