> ## 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.

> [!NOTE]
>
> 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.

***

## Detected Vulnerabilities

> [accordion] 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] 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] 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] 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] 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] 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] 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.


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