Vulnerability Details : CVE-2018-17987
Potential exploit
The determineWinner function of a smart contract implementation for HashHeroes Tiles, an Ethereum game, uses a certain blockhash value in an attempt to generate a random number for the case where NUM_TILES equals the number of people who purchased a tile, which allows an attacker to control the awarding of the prize by being the last person to purchase a tile.
Products affected by CVE-2018-17987
- cpe:2.3:a:hashheroes:hashheroes:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-17987
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-17987
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2018-17987
-
The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-17987
-
https://github.com/TEAM-C4B/CVE-LIST/tree/master/CVE-2018-17987
CVE-LIST/CVE-2018-17987 at master · TEAM-C4B/CVE-LIST · GitHubExploit;Third Party Advisory
Jump to