CVE-2018-17071

N/A

Description

The 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.

CVE Details

CVSS v3.1 ScoreN/A

Published9/18/2018

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

lucky9:lucky9io

Weaknesses (CWE)

CWE-338

References

https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17071(cve@mitre.org)

https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17071(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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