Vulnerability identifier: #VU12183

Vulnerability risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L/E:H/RL:U/RC:C]

CVE-ID: CVE-2018-10376

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SmartMesh ERC20 token
Client/Desktop applications / Other client software

Vendor: SmartMesh Foundation Pte. Ltd.

Description

The vulnerability allows a remote attacker to manipulate digital assets.

The vulnerability exists due to integer overflow in a smart contract implementation for SmartMesh (aka SMT) within Ethereum ERC20 token. A remote unauthenticated attacker can increase digital assets via crafted _fee and _value parameter.

Note: the vulnerability was actively exploited in April 2018 and was dubbed "proxyOverflow".

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

SmartMesh ERC20 token: All versions

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External links
http://dasp.co/#item-3
http://peckshield.com/2018/04/25/proxyOverflow/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.