Vulnerabilities > CVE-2018-13087 - Integer Overflow or Wraparound vulnerability in Coinstar Myadvancedtoken Project Coinstar Myadvancedtoken

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE

Summary

The mintToken function of a smart contract implementation for Coinstar (CSTR), an Ethereum token, has an integer overflow that allows the owner of the contract to set the balance of an arbitrary user to any value.

Vulnerable Configurations

Part Description Count
Application
Coinstar_Myadvancedtoken_Project
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Forced Integer Overflow
    This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.