DEV Community

Golam_Mostafa
Golam_Mostafa

Posted on

2

Weaknesses in Two-Factor Authentication

Two-factor authentication (2FA) is meant to add extra security by asking for a password and then a code. However, some websites don’t fully enforce the second step.

For example, imagine logging in to a site that asks for your password, then moves to a page asking for a code. If the website considers you "logged in" after just the password, you might be able to skip the code and access secure pages.

To check if this flaw exists:

  1. Enter your password.
  2. When asked for the code, try going directly to a secure page.

If it works, the 2FA isn’t doing its job, and hackers could exploit this to bypass security.


Acknowledgment: This document references information from PortSwigger Web Security and ChatGPT.


Top comments (1)

Collapse
 
plzbugmenot profile image
Jason Smith

GOOD

Billboard image

The Next Generation Developer Platform

Coherence is the first Platform-as-a-Service you can control. Unlike "black-box" platforms that are opinionated about the infra you can deploy, Coherence is powered by CNC, the open-source IaC framework, which offers limitless customization.

Learn more

👋 Kindness is contagious

Explore a sea of insights with this enlightening post, highly esteemed within the nurturing DEV Community. Coders of all stripes are invited to participate and contribute to our shared knowledge.

Expressing gratitude with a simple "thank you" can make a big impact. Leave your thanks in the comments!

On DEV, exchanging ideas smooths our way and strengthens our community bonds. Found this useful? A quick note of thanks to the author can mean a lot.

Okay