CVE-2018-15552 Information

Description

The \PayWinner\ function of a simplelottery smart contract implementation for The Ethereum Lottery an Ethereum gambling game generates a random value with publicly readable variable \maxTickets\ (which is private yet predictable and readable by the eth.getStorageAt function). Therefore it allows attackers to always win and get rewards.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5