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Cobalt Vulnerability Wiki

Cobalt Vulnerability Wiki


Toggle Arrow IconV2 - Authentication
Authentication Bypass2-Factor Authentication (2FA) BypassCAPTCHA Bypass - X-Forwarded-ForLack of Password ConfirmationLack of Verification EmailMail Bombing in the Contact FormMissing brute-force protection for two-factor authenticationNo Rate Limiting on a FormNo Rate Limiting or Captcha on Login PagePassword Cracking for Common/Weak Passwords when Password Policy is WeakUsername/Email Address EnumerationUsing Default Credentials Weak 2FA ImplementationWeak Login FunctionWeak Password PolicyWeak Registration Implementation over HTTP
Toggle Arrow IconV3 - Session ManagementToggle Arrow IconV4 - Access ControlToggle Arrow IconV5 - Validation/SanitizationToggle Arrow IconV6 - CryptographyToggle Arrow IconV7 - Error LoggingToggle Arrow IconV8 - Data ProtectionToggle Arrow IconV9 - CommunicationsToggle Arrow IconV10 - Malicious CodeToggle Arrow IconV11 - Business LogicToggle Arrow IconV12 - Files ResourcesToggle Arrow IconV13 - APIToggle Arrow IconV14 - Config
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V2 - Authentication

No Rate Limiting or Captcha on Login Page


1. Go to login page and send the unsuccessful login attempt request to Burp Intruder

2. Change the password values for brute force as random values

3. Observe that the response to the 20 or 30th request doesn't change and the account is not locked.


Low (It could lead to account takeover of users if the attacker finds a valid login through bruteforce attack. The Impact can be increased then)



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