{
  "rule": {
    "id": "S044",
    "name": "Re-authentication Required for Sensitive Operations",
    "description": "Require re-authentication before performing sensitive operations such as password changes, email changes, profile updates, and other critical account modifications. This prevents unauthorized access to sensitive account functions even if a session is compromised.",
    "category": "security",
    "severity": "error",
    "languages": ["typescript", "javascript"],
    "frameworks": ["express", "nestjs", "node"],
    "version": "1.0.0",
    "status": "stable",
    "tags": ["security", "authentication", "re-authentication", "sensitive-operations", "owasp"],
    "references": [
      "https://owasp.org/www-community/controls/Authentication_Cheat_Sheet",
      "https://cheatsheetseries.owasp.org/cheatsheets/Authentication_Cheat_Sheet.html",
      "https://owasp.org/www-community/attacks/Session_Management_Cheat_Sheet"
    ]
  },
  "configuration": {
    "enableReAuthenticationDetection": true,
    "sensitiveOperations": [
      "changePassword",
      "updatePassword", 
      "resetPassword",
      "changeEmail",
      "updateEmail",
      "changeProfile",
      "updateProfile",
      "deleteAccount",
      "deactivateAccount",
      "changePhoneNumber",
      "updatePhoneNumber",
      "changeSecurityQuestion",
      "updateSecurityQuestion",
      "changeTwoFactorSettings",
      "updateTwoFactorSettings",
      "changeBillingInfo",
      "updateBillingInfo",
      "changePaymentMethod",
      "updatePaymentMethod"
    ],
    "authenticationMethods": [
      "verifyPassword",
      "confirmPassword",
      "reAuthenticate",
      "verifyCurrentPassword",
      "validatePassword",
      "checkPassword",
      "authenticateUser",
      "verifyIdentity"
    ],
    "middlewarePatterns": [
      "requireReAuth",
      "requireReAuthentication", 
      "verifyReAuth",
      "checkReAuth",
      "validateReAuth"
    ],
    "frameworkSpecific": {
      "express": {
        "routePatterns": [
          "/change-password",
          "/update-password",
          "/change-email", 
          "/update-email",
          "/change-profile",
          "/update-profile",
          "/delete-account",
          "/deactivate-account"
        ]
      },
      "nestjs": {
        "decorators": [
          "@RequireReAuth",
          "@ReAuthenticationRequired",
          "@VerifyReAuth"
        ],
        "guards": [
          "ReAuthGuard",
          "ReAuthenticationGuard",
          "VerifyReAuthGuard"
        ]
      }
    },
    "excludePatterns": [
      "login",
      "register", 
      "logout",
      "forgot-password",
      "reset-password-request"
    ]
  },
  "examples": {
    "violations": [
      {
        "description": "Password change without re-authentication",
        "code": "@Post('change-password')\nasync changePassword(@Body() changePasswordDto: ChangePasswordDto) {\n  return this.userService.changePassword(changePasswordDto);\n}"
      },
      {
        "description": "Email change without re-authentication",
        "code": "@Put('email')\nasync updateEmail(@Body() emailDto: UpdateEmailDto) {\n  return this.userService.updateEmail(emailDto);\n}"
      },
      {
        "description": "Profile update without re-authentication",
        "code": "app.put('/profile', (req, res) => {\n  return userService.updateProfile(req.body);\n});"
      }
    ],
    "fixes": [
      {
        "description": "Password change with re-authentication",
        "code": "@Post('change-password')\n@UseGuards(ReAuthGuard)\nasync changePassword(@Body() changePasswordDto: ChangePasswordDto) {\n  return this.userService.changePassword(changePasswordDto);\n}"
      },
      {
        "description": "Email change with re-authentication",
        "code": "@Put('email')\n@UseGuards(ReAuthGuard)\nasync updateEmail(@Body() emailDto: UpdateEmailDto) {\n  return this.userService.updateEmail(emailDto);\n}"
      },
      {
        "description": "Profile update with re-authentication",
        "code": "app.put('/profile', requireReAuth, (req, res) => {\n  return userService.updateProfile(req.body);\n});"
      }
    ]
  },
  "testing": {
    "testCases": [
      {
        "name": "password_change_without_reauth",
        "type": "violation",
        "description": "Password change endpoint without re-authentication"
      },
      {
        "name": "email_change_without_reauth",
        "type": "violation", 
        "description": "Email change endpoint without re-authentication"
      },
      {
        "name": "profile_update_without_reauth",
        "type": "violation",
        "description": "Profile update endpoint without re-authentication"
      },
      {
        "name": "password_change_with_reauth",
        "type": "clean",
        "description": "Password change endpoint with re-authentication guard"
      },
      {
        "name": "email_change_with_reauth",
        "type": "clean",
        "description": "Email change endpoint with re-authentication guard"
      },
      {
        "name": "profile_update_with_reauth",
        "type": "clean",
        "description": "Profile update endpoint with re-authentication middleware"
      }
    ]
  },
  "performance": {
    "complexity": "O(n)",
    "description": "Linear complexity based on number of route handlers and method calls in the source code"
  }
}