PT-2018-11341 · Globalvillage · Gve

Published 2018-06-25 · Updated 2018-08-30 · CVE-2018-12702

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions Globalvillage ecosystem (GVE) smart contract implementation (affected versions not specified)

Description The issue concerns the approveAndCall function in the smart contract implementation, which allows attackers to steal assets by transferring the contract's balances into their account. This is due to the lack of verification of the callcode ( spender.call( extraData)). The issue is also referred to as the "evilReflex" problem.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2018-12702

Affected Products

Gve

References · 3

• 🔥 https://peckshield.com/2018/06/23/evilReflex · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-12702 · Security Note
• https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals · Note