COMMON ATTACK PATTERN ENUMERATION AND CLASSIFICATIONLive MITRE record

CAPEC-128

Integer Attacks

An attacker takes advantage of the structure of integer variables to cause these variables to assume values that are not expected by an application. For example, adding one to the largest positive integer in a signed integer variable results in a negative number. Negative numbers may be illegal in an application and the application may prevent an attacker from providing them directly, but the application may not consider that adding two positive numbers can create a negative number do to the structure of integer storage formats.

Abstraction

Standard

Typical severity

Medium

Likelihood of attack

Medium

Understand the attack

What is this attack pattern?

An attacker takes advantage of the structure of integer variables to cause these variables to assume values that are not expected by an application. For example, adding one to the largest positive integer in a signed integer variable results in a negative number. Negative numbers may be illegal in an application and the application may prevent an attacker from providing them directly, but the application may not consider that adding two positive numbers can create a negative number do to the structure of integer storage formats.

Requirements

What does the attack require?

Prerequisites

  • The target application must have an integer variable for which only some of the possible integer values are expected by the application and where there are no checks on the value of the variable before use.
  • The attacker must be able to manipulate the targeted integer variable such that normal operations result in non-standard values due to the storage structure of integers.

Skills required

Not stated in the MITRE record.

Resources required

  • None: No specialized resources are required to execute this type of attack.
CAPEC-128: Integer Attacks — DayBreach Saldırı Sözlüğü · DayBreach