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CVE-2018-12454

N/A
Published: June 17, 2018 at 12:00 PM UTC
Updated: June 17, 2026 at 01:37 AM UTC
1 product affected across 1 vendor1000GUESS

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Severity
N/A
Exploit prediction
EPSS 1%

Description

The _addguess function of a simplelottery smart contract implementation for 1000 Guess, an Ethereum gambling game, generates a random value with publicly readable variables such as the current block information and a private variable (which can be read with a getStorageAt call). Therefore, it allows attackers to always win and get rewards.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1000GUESS· 1000GUESS
95%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISC
Source: [email protected]
https://medium.com/%40jonghyk.song/attack-on-pseudo-random-number-generator-prng-used-in-1000-guess-an-ethereum-lottery-game-7b76655f953d

CVSS

5MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-338

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