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VULNERABILITIES

CVE-2018-14715 Details

Description

The endCoinFlip function and throwSlammer function of the smart contract implementations for Cryptogs, an Ethereum game, generate random numbers with an old block's hash. Therefore, attackers can predict the random number and always win the game.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://medium.com/%40jonghyk.song/attack-on-pseudo-random-number-generator-prng-used-in-cryptogs-an-ethereum-cve-2018-14715-f63a51ac2eb9 CVE
https://medium.com/%40jonghyk.song/attack-on-pseudo-random-number-generator-prng-used-in-cryptogs-an-ethereum-cve-2018-14715-f63a51ac2eb9 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-338Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)[email protected]

Affected Products

ProductVersions
cryptogs cryptogs
All versions

CPE

  • cpe:2.3:a:cryptogs:cryptogs:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2018-14715
NVD Published Date:
Aug 3, 2018
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2018-14715 Details - Not Deferred