Integer overflow in Useless Ethereum Token (UET) implementation



Published: 2018-04-29
Risk High
Patch available NO
Number of vulnerabilities 1
CVE ID CVE-2018-10468
CWE ID CWE-190
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
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Useless Ethereum Token
Client/Desktop applications / Other client software

Vendor Useless Ethereum Token

Security Advisory

This security advisory describes one high risk vulnerability.

1) Integer overflow

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] [PCI]

CVE-ID: CVE-2018-10468

CWE-ID: CWE-190 - Integer Overflow or Wraparound

Exploit availability: No

Description

The vulnerability allows a remote attacker to steal digital assets.

The vulnerability exists due to integer overflow within the transferFrom() function of a smart contract implementation for Useless Ethereum Token (UET). A remote attacker can steal assets (e.g., transfer all victims' balances into their account) because certain computations involving _value are incorrect.

The vulnerability was dubbed "transferFlaw" and has been exploited in the wild in December 2017.

Mitigation

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

Vulnerable software versions

Useless Ethereum Token: All versions

CPE External links

https://peckshield.com/2018/04/28/transferFlaw/

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.



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