Tools / Pentest / Use Cases / Scan for Authentication Weaknesses

Scan for Authentication Weaknesses

Test login systems, session management, and authentication flows for security weaknesses.

Tool
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Authentication is the front door to your application. Weaknesses in login systems, password policies, session management, or token handling can give attackers direct access to user accounts. Broken authentication is consistently one of the most exploited vulnerability categories because it provides immediate, high-value access.

Authentication security testing checks for a broad range of issues: weak password policies that allow common passwords, missing brute force protection, predictable session tokens, insecure password reset flows, missing multi-factor authentication, and token handling vulnerabilities like JWT algorithm confusion or missing expiration.

Every application with user accounts needs authentication testing. Even well-known authentication libraries and frameworks can be misconfigured. A secure login form means nothing if the session token is predictable, the password reset email contains the new password in plaintext, or the JWT secret is a common word. Systematic testing of every authentication flow is the only way to be confident in your security posture.

Agent Guides

Claude

  1. Connect ToolRouter: claude mcp add toolrouter -- npx -y toolrouter-mcp
  2. Ask Claude: "Scan the authentication system of my app for weaknesses using pentest" and provide the URL
  3. Claude tests login flows, session management, and token handling
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ChatGPT

  1. Configure ToolRouter in ChatGPT
  2. Ask: "Test my application's authentication for security weaknesses" and provide the URL
  3. ChatGPT tests authentication flows and returns findings
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Copilot

  1. Add ToolRouter to Copilot MCP config
  2. In Copilot Chat: "Test my app's authentication for security weaknesses"
  3. Copilot tests login and session flows and returns findings
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OpenClaw

  1. Connect ToolRouter: openclaw mcp add toolrouter -- npx -y toolrouter-mcp
  2. Ask OpenClaw: "Test the authentication system for weaknesses"
  3. OpenClaw tests login, session, and token handling
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Related Use Cases

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Test API Security

Assess the security of REST APIs by testing authentication, authorization, input validation, and injection resistance.

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Pentest
4 agent guides