What is CVE-2018-12702?

CVE-2018-12702 is a high-severity vulnerability in Gve Globalvillage Ecosystem, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-06-25.

How severe is CVE-2018-12702?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2018-12702 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Gve Globalvillage Ecosystem

CVE-2018-12702

The approveAndCallcode function of a smart contract implementation for Globalvillage ecosystem (GVE), an Ethereum ERC20 token, allows attackers to steal assets (e.g., transfer the contract's balances into their account) because the callcode (i.e., _spender.call(_extraData)) is not verified, aka the "evilReflex" issue. NOTE: a PeckShield disclosure states "some researchers have independently discussed the mechanism of such vulnerability."

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.011 (62.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Gve Globalvillage_ecosystem
N/a — versions n/a

Weakness classification (CWE)

CWE-20 — Improper Input Validation

Public proof-of-concept exploits

im-bug/BlockChain-Security-List

References

cve@mitre.org (Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-12702?: CVE-2018-12702 is a high-severity vulnerability in Gve Globalvillage Ecosystem, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2018-06-25.
How severe is CVE-2018-12702?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2018-12702 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.