COMMON ATTACK PATTERN ENUMERATION AND CLASSIFICATIONLive MITRE record

CAPEC-140

Bypassing of Intermediate Forms in Multiple-Form Sets

Some web applications require users to submit information through an ordered sequence of web forms. This is often done if there is a very large amount of information being collected or if information on earlier forms is used to pre-populate fields or determine which additional information the application needs to collect. An attacker who knows the names of the various forms in the sequence may be able to explicitly type in the name of a later form and navigate to it without first going through the previous forms. This can result in incomplete collection of information, incorrect assumptions about the information submitted by the attacker, or other problems that can impair the functioning of the application.

Abstraction

Standard

Typical severity

Medium

Likelihood of attack

Medium

Understand the attack

What is this attack pattern?

Some web applications require users to submit information through an ordered sequence of web forms. This is often done if there is a very large amount of information being collected or if information on earlier forms is used to pre-populate fields or determine which additional information the application needs to collect. An attacker who knows the names of the various forms in the sequence may be able to explicitly type in the name of a later form and navigate to it without first going through the previous forms. This can result in incomplete collection of information, incorrect assumptions about the information submitted by the attacker, or other problems that can impair the functioning of the application.

Requirements

What does the attack require?

Prerequisites

  • The target must collect information from the user in a series of forms where each form has its own URL that the attacker can anticipate and the application must fail to detect attempts to access intermediate forms without first filling out the previous forms.

Skills required

Not stated in the MITRE record.

Resources required

  • None: No specialized resources are required to execute this type of attack.
CAPEC-140: Bypassing of Intermediate Forms in Multiple-Form Sets — DayBreach Saldırı Sözlüğü · DayBreach