CVE-2018-12454 — HIGH (7.5)

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
1000Guess	1000 Guess	-

Related Weaknesses (CWE)

CWE-338

References

FAQ

What is CVE-2018-12454?

CVE-2018-12454 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 i...

How severe is CVE-2018-12454?

CVE-2018-12454 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-12454?

Check the references section above for vendor advisories and patch information. Affected products include: 1000Guess 1000 Guess.