Broken Authentication Template

Executive Summary:

This report identifies a Broken Authentication vulnerability within our application. Broken Authentication occurs when authentication mechanisms are improperly implemented, allowing attackers to compromise user credentials, bypass authentication controls, or escalate privileges. The report aims to provide insights into the vulnerability, its potential impact on our systems and users, and actionable recommendations for mitigation.

Description of the Vulnerability:

Broken Authentication arises from weaknesses in the authentication and session management mechanisms of the application. Common vulnerabilities include predictable or weak credentials, insufficient session timeout controls, lack of multi-factor authentication (MFA), or improper handling of password reset functionalities. Attackers can exploit these weaknesses to gain unauthorized access to user accounts, sensitive data, or administrative functionalities.


Exploiting Broken Authentication can lead to unauthorized access to user accounts, exposure of sensitive information, identity theft, or privilege escalation. Depending on the severity of the vulnerability and the attacker's capabilities, the impact may range from individual account compromise to widespread data breaches with significant financial and reputational repercussions.


The likelihood of Broken Authentication exploitation depends on various factors, including the effectiveness of authentication controls, the complexity of user workflows, and the value of the assets protected by the authentication mechanisms. However, given the prevalence of common authentication vulnerabilities and the availability of automated attack tools, the risk associated with this vulnerability is considerable if left unaddressed.

Steps to Reproduce:

  1. Identify authentication mechanisms within the application, including login forms, session management, and password reset functionalities.
  2. Attempt to exploit common authentication weaknesses, such as weak passwords, predictable credentials, or insecure session management practices.
  3. Use automated tools or manual techniques to enumerate user accounts, bypass authentication controls, or hijack user sessions.
  4. Validate the success of the attack by gaining unauthorized access to user accounts, sensitive data, or administrative functionalities.

Recommendations for Developers:

  1. Strong Password Policies: Enforce strong password policies, including minimum length requirements, complexity rules, and password expiration intervals. Implement password hashing with salt to protect stored credentials from unauthorized access.
  2. Secure Session Management: Implement secure session management practices, including session timeout controls, secure cookie attributes (e.g., HttpOnly, Secure), and session revocation mechanisms. Consider implementing multi-factor authentication (MFA) for sensitive operations to add an extra layer of security.


Addressing the Broken Authentication vulnerability is crucial to protect user accounts, sensitive data, and the overall integrity of our application. By implementing robust authentication controls and following security best practices, we can mitigate the risks associated with Broken Authentication and enhance the security posture of our systems.