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Mitigation Strategies Analysis for dapperlib/dapper

Mitigation Strategy: Parameterized Queries (Dapper Implementation)

  • Mitigation Strategy: Parameterized Queries (Dapper Implementation)

  • Description:

    • Step 1: Identify Dapper Queries with User Input: Review your codebase and pinpoint all locations where Dapper's Query, Execute, or similar methods are used to execute SQL queries that incorporate user-provided data.
    • Step 2: Ensure Parameter Usage in Dapper: For each identified query, verify that user input is passed to Dapper as parameters, not by directly embedding it into the SQL string.
    • Step 3: Utilize Dapper Parameter Syntax: Confirm the use of Dapper's parameterization features:
      • Anonymous Objects: Check for the use of anonymous objects as the second argument in Dapper methods, where property names match parameter placeholders in the SQL (e.g., connection.Query("SELECT * FROM Users WHERE Username = @Username", new { Username = username });).
      • DynamicParameters: If using DynamicParameters, ensure parameters are added using Add method and passed to Dapper methods.
      • Inline Parameters: Verify correct syntax for inline parameters within the SQL string (e.g., @Username, :Username, ? depending on database provider and Dapper configuration).
    • Step 4: Code Review for Parameterization: Conduct code reviews specifically focused on Dapper usage to ensure consistent and correct parameterization across the application.

  • List of Threats Mitigated:

    • SQL Injection (High Severity): Prevents attackers from injecting malicious SQL code through user input processed by Dapper, potentially leading to data breaches, data manipulation, or unauthorized access.

  • Impact:

    • SQL Injection: High Impact - Effectively eliminates SQL injection vulnerabilities arising from Dapper usage when implemented correctly and consistently.

  • Currently Implemented: Partially implemented in newer modules using Dapper. Parameterized queries are generally used in UserService and ProductService.

    • Location: Implemented in UserService and ProductService modules for database interactions using Dapper.

  • Missing Implementation: Legacy modules and older code using Dapper might still have instances of string concatenation for query building.

    • Location: Found in ReportingModule and parts of LegacyOrderProcessing module where Dapper is used. Requires refactoring to use parameterized queries.

Mitigation Strategy: Implement Query Timeouts (Dapper Configuration)

  • Mitigation Strategy: Implement Query Timeouts (Dapper Configuration)
  • Description:
    • Step 1: Determine Appropriate Timeouts for Dapper Queries: Analyze different Dapper queries in the application and decide on suitable timeout durations for each type of query based on expected execution time and acceptable latency.
    • Step 2: Configure commandTimeout in Dapper: Explicitly set the commandTimeout parameter when calling Dapper's Query, Execute, or other methods. This can be done:
      • Per-Query: Set commandTimeout as an argument for individual Dapper method calls where timeouts are critical (e.g., `connection.Query("...\