/* goodG2B() - use goodsource and badsink */ private static void GoodG2B() { int data; /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */ data = 2; Container dataContainer = new Container(); dataContainer.containerOne = data; CWE190_Integer_Overflow__int_Database_square_67b.GoodG2BSink(dataContainer); }
public override void Bad() { int data; data = int.MinValue; /* Initialize data */ /* Read data from a database */ { try { /* setup the connection */ using (SqlConnection connection = IO.GetDBConnection()) { connection.Open(); /* prepare and execute a (hardcoded) query */ using (SqlCommand command = new SqlCommand(null, connection)) { command.CommandText = "select name from users where id=0"; command.Prepare(); using (SqlDataReader dr = command.ExecuteReader()) { /* POTENTIAL FLAW: Read data from a database query SqlDataReader */ string stringNumber = dr.GetString(1); if (stringNumber != null) /* avoid NPD incidental warnings */ { try { data = int.Parse(stringNumber.Trim()); } catch (FormatException exceptNumberFormat) { IO.Logger.Log(NLog.LogLevel.Warn, exceptNumberFormat, "Number format exception parsing data from string"); } } } } } } catch (SqlException exceptSql) { IO.Logger.Log(NLog.LogLevel.Warn, exceptSql, "Error with SQL statement"); } } Container dataContainer = new Container(); dataContainer.containerOne = data; CWE190_Integer_Overflow__int_Database_square_67b.BadSink(dataContainer); }