製品・ソフトウェアに関する情報
Block 18 における入力確認に関する脆弱性
Title Block 18 における入力確認に関する脆弱性
Summary

Block 18 (18T) には、入力確認に関する脆弱性が存在します。

Possible impacts 情報を改ざんされる可能性があります。
Solution

ベンダ情報および参考情報を参照して適切な対策を実施してください。

Publication Date June 23, 2018, midnight
Registration Date Sept. 19, 2018, 5:24 p.m.
Last Update Sept. 19, 2018, 5:24 p.m.
CVSS3.0 : 重要
Score 7.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS2.0 : 警告
Score 5
Vector AV:N/AC:L/Au:N/C:N/I:P/A:N
Affected System
block18
Block 18 
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
その他
Change Log
No Changed Details Date of change
1 [2018年09月19日]
  掲載
Sept. 19, 2018, 5:24 p.m.

NVD Vulnerability Information
CVE-2018-12703
Summary

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."

Publication Date June 25, 2018, 7:29 p.m.
Registration Date March 1, 2021, 6:50 p.m.
Last Update Nov. 21, 2024, 12:45 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:block18:block18:*:*:*:*:*:*:*:*
Related information, measures and tools
Common Vulnerabilities List