PT-2018-13082 · Ethereum · Ethereum

Published 2018-09-07 · Updated 2019-09-16 · CVE-2018-15552

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions The Ethereum Lottery (affected versions not specified)

Description The issue concerns the "PayWinner" function of a simplelottery smart contract implementation, which generates a random value. This value is influenced by the maxTickets variable, intended to be private but is predictable and readable through the eth.getStorageAt function. As a result, attackers can exploit this to always win and receive rewards.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-338

Related Identifiers

CVE-2018-15552

Affected Products

Ethereum

References · 2

• 🔥 https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-15552 · Security Note