CVE-2018-10831

HIGH EXPLOITED IN THE WILD

z-nomp < 1.0.5 - Incorrect Equihash Solution Verification

Title source: llm

Exploitation Summary

CVE-2018-10831 has been observed exploited in the wild (reported by VulnCheck KEV, InTheWild.io).

Description

Z-NOMP before 2018-04-05 has an incorrect Equihash solution verifier that allows attackers to spoof mining shares, as demonstrated by providing a solution with {x1=1,x2=1,x3=1,...,x512=1} to bypass this verifier for any blockheader. This originally affected (for example) the Bitcoin Gold and Zcash cryptocurrencies, and continued to be exploited in the wild in May 2018 against smaller cryptocurrencies.

References (2)

Core 2

Core References

Exploit, Technical Description, Third Party Advisory x_refsource_misc

https://github.com/edwardz246003/misc/blob/master/Attackers%20Fake%20Computational%20Power%20to%20Steal%20Cryptocurrencies%20from%20Mining%20Pools.md

Third Party Advisory x_refsource_misc

https://blog.zencash.com/update-for-the-equihash-mining-application-z-nomp/

Scores

CVSS v3 7.5

EPSS 0.0072

EPSS Percentile 48.9%

Attack Vector NETWORK

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

Details

VulnCheck KEV 2018-05-09

InTheWild.io 2018-06-18

CWE

CWE-327

Status published

Products (1)

zclassic/z-nomp < 1.0.5

Published May 09, 2018

Tracked Since Feb 18, 2026