OWASP TOP 10: Application logic vulnerabilities ~2024

Description

An Application logic vulnerability is a weakness that makes it possible for a threat to occur via bypassing one or more security checks on the intended application design.

As Simple,  Application logic vulnerability are flaws in the design and implementation of an application that allow an attacker to elicit unintended behavior. This potentially enables attackers to manipulate legitimate functionality to achieve a malicious goal.

The OWASP Top 10 provides rankings of—and remediation guidance for—the top 10 most critical web application security risks. Leveraging the extensive knowledge and experience of the OWASP's open community contributors, the report is based on a consensus among security experts from around the world and It is the most prevalent and impactful vulnerability as per the OWASP “Top 10” list.

What is Application logic vulnerabilities?

A logic flaw happens when an application (website, mobile app, webservice…) does not behave as expected.

It occurs when some logic steps or a workflow can be avoided, circumvented or manipulated by an attacker. The attacker diverts a workflow in its own interest, it isn’t a technical mistake in itself.

Application logic flaws can often be exploited without specific technical tools, sometimes simply by manipulating the url or the htlm code of the page. Generally, using a proxy to intercept and play again requests helps to find and exploit these flaws.

Is it same  "application logic vulnerabilities"  & "logic flaws" & "Business logic"?

Yes.

Why need to learn Application logic vulnerabilities?

The impact of this vulnerability is highly variable, at times it can be severe. It mostly depends upon how the user will manipulate the web application, in some cases the vulnerability itself does not pose a major threat but work as the initial payload for high severity attacks.

The type of impact is directly related to the functionality of the web application, for example, if the flaw is in the authentication module then it will jolt the complete security of the web application similarly if the flawed logic is in the financial transaction then it will affect the massive losses of the funds.

Types of broken Application logic vulnerabilities

            >>Authentication flags and privilege escalations

            >>Critical parameter manipulation and access to unauthorized information/content

            >>Developer's cookie tampering and business process/logic bypass

            >>LDAP parameter identification and critical infrastructure access

            >>Business constraint exploitation

            >>Business flow bypass

            >>‍Exploiting clients side business routines embedded in JavaScript, Flash or Silverlight

            >>‍Identity or profile extraction

            >>‍File or unauthorized URL access &business information extraction

How to prevent Application logic vulnerabilities

• Review methodology

• Defensive strategies for securing web applications

• Existing vulnerability scanners

• TestBed applications

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