VulnerabilityModified
CVE-2018-15552
Therefore, it allows attackers to always win and get rewards.
HIGH 7.5EPSS 1.17%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.17% probability · 66th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-338
- Affected
- theethereumlottery/the ethereum lottery
- Source
- cve@mitre.org
References
- https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552Exploit, Third Party Advisory
- https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-15552Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.