CVE-2018-17071

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Summary

CVECVE-2018-17071
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-09-18 21:29:00 UTC
Updated2018-12-10 14:53:00 UTC
DescriptionThe fallback function of a simple lottery smart contract implementation for Lucky9io, an Ethereum gambling game, generates a random value with the publicly readable variable entry_number. This variable is private, yet it is readable by eth.getStorageAt function. Also, attackers can purchase a ticket at a low price by directly calling the fallback function with small msg.value, because the developer set the currency unit incorrectly. Therefore, it allows attackers to always win and get rewards.

Risk And Classification

Problem Types: CWE-338

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Lucky9 Lucky9io - All All All
Application Lucky9 Lucky9io - All All All

References

ReferenceSourceLinkTags
CVE-LIST/CVE-2018-17071 at master · TEAM-C4B/CVE-LIST · GitHub MISC github.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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