> ## Documentation Index
> Fetch the complete documentation index at: https://docs.codeant.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# A07:2021  - Identification and Authentication Failures

> Security rules for Identification and Authentication Failures vulnerabilities. Covers weak passwords, improper session management, credential exposure, and missing multi-factor authentication.

Confirmation of the user's identity, authentication, and session management is critical to protect against authentication-related attacks. This includes weak passwords, improper session management, credential exposure, and missing multi-factor authentication.

<Info>
  CodeAnt AI detects **Identification and Authentication Failures** vulnerabilities across **14 languages**: Python, Java, JavaScript, TypeScript, Go, C#, Ruby, PHP, Kotlin, Swift, Rust, C++, Terraform, YAML.
</Info>

***

## Detected Vulnerabilities

<AccordionGroup>
  <Accordion title="CWE-259: Use of Hard-coded Password">
    **Severity:** **Critical**

    ### Description

    The application contains hard-coded passwords in source code, configuration files, or compiled binaries that cannot be changed without modifying and redeploying the application.

    ### Impact

    Hard-coded credentials are discoverable through source code analysis, reverse engineering, or repository access, providing permanent unauthorized access to protected resources.

    ### Remediation

    Store all passwords in secure secret management systems. Use environment variables for configuration. Implement credential rotation. Never commit credentials to version control repositories.
  </Accordion>

  <Accordion title="CWE-287: Improper Authentication">
    **Severity:** **Critical**

    ### Description

    The application does not properly verify that a claimed identity is genuine, allowing attackers to bypass authentication mechanisms through logic flaws, missing checks, or weak implementations.

    ### Impact

    Complete authentication bypass, allowing attackers to access any account, impersonate users, and perform unauthorized actions with full application access.

    ### Remediation

    Use well-tested authentication frameworks. Implement multi-factor authentication. Enforce strong password policies. Use secure session management. Test authentication logic with adversarial scenarios.
  </Accordion>

  <Accordion title="CWE-384: Session Fixation">
    **Severity:** **High**

    ### Description

    The application does not regenerate session identifiers after successful authentication, allowing attackers to set or predict session tokens before a user authenticates.

    ### Impact

    Attackers can hijack authenticated user sessions by providing a known session ID before login, gaining full access to the user's authenticated session.

    ### Remediation

    Always regenerate session IDs after successful authentication. Invalidate old session tokens. Use secure, random session ID generation. Implement session binding to client properties.
  </Accordion>

  <Accordion title="CWE-613: Insufficient Session Expiration">
    **Severity:** **Medium**

    ### Description

    The application does not enforce adequate session expiration, allowing sessions to remain valid for extended periods even after inactivity or when they should be invalidated.

    ### Impact

    Long-lived sessions increase the window for session hijacking. Stolen session tokens remain valid indefinitely, and shared computer sessions persist after users leave.

    ### Remediation

    Implement absolute and idle session timeouts. Force re-authentication for sensitive operations. Provide session termination on logout. Limit concurrent sessions per user.
  </Accordion>

  <Accordion title="CWE-521: Weak Password Requirements">
    **Severity:** **Medium**

    ### Description

    The application does not enforce sufficient password complexity requirements, allowing users to set easily guessable passwords that are vulnerable to brute-force and dictionary attacks.

    ### Impact

    Weak passwords can be easily cracked through brute-force, dictionary attacks, or credential stuffing, leading to unauthorized account access.

    ### Remediation

    Enforce minimum password length (12+ characters). Check against known breached password lists. Implement password strength meters. Encourage passphrase usage. Require MFA for all accounts.
  </Accordion>

  <Accordion title="CWE-798: Use of Hard-coded Credentials">
    **Severity:** **Critical**

    ### Description

    The application contains hard-coded credentials (usernames, passwords, API keys, tokens) embedded directly in the source code or configuration files.

    ### Impact

    Hard-coded credentials are easily discoverable and cannot be rotated without code changes, providing persistent unauthorized access if the source code is compromised.

    ### Remediation

    Use secret management solutions (Vault, AWS Secrets Manager, etc.). Inject credentials via environment variables at runtime. Implement automated secret scanning in CI/CD. Rotate all discovered hard-coded credentials immediately.
  </Accordion>

  <Accordion title="CWE-255: Credentials Management Errors">
    **Severity:** **High**

    ### Description

    The application improperly manages credentials throughout their lifecycle, including creation, storage, transmission, and deletion, introducing multiple points of vulnerability.

    ### Impact

    Poor credential management leads to credential leakage, unauthorized access, and inability to revoke compromised credentials, affecting the entire application security posture.

    ### Remediation

    Implement a comprehensive credentials management policy. Use secret managers for storage. Encrypt credentials in transit. Implement credential rotation. Audit credential access and usage.
  </Accordion>
</AccordionGroup>