ByteOS Network

NVD Vulnerability Details :

CVE-2018-12703

Analyzed

Source-cve@mitre.org

Published At-25 Jun, 2018 | 10:29

Updated At-30 Aug, 2018 | 13:16

The approveAndCallcode function of a smart contract implementation for Block 18 (18T), an tradable 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."

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.0	7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Primary	2.0	5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:N

CPE Matches

block18>>block18>>*

cpe:2.3:a:block18:block18:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-20	Primary	nvd@nist.gov

References

Hyperlink	Source	Resource
https://huobiglobal.zendesk.com/hc/en-us/articles/360000110521-HADAX-Suspends-18T-and-GVE-Deposits-and-Withdrawals	cve@mitre.org	Third Party Advisory
https://peckshield.com/2018/06/23/evilReflex/	cve@mitre.org	Exploit Third Party Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History