[Solved]-Unsafe object binding checkmarx fix in java

I'm working on project and then suddenly hit a roadblock.I am, trying to code away in Java, when I encounter this pesky little error called "unsafe object binding." It's like the universe decided to throw me a curveball right in the middle of my coding groove.

In Java, when you're binding objects together, there's a chance things might get a bit uncertain. This error pops up when Java detects that I'm trying to bind objects in a way that could potentially lead to some security vulnerabilities.

So, when did this error decide to rear its ugly head? Right in the thick of things, of course! Just when I'm in the zone, trying to make my code work like a charm, this error comes knocking on my door, ready to ruin my day.

In this blog post, I'm diving deep into the possible solutions for this error. From tightening up my object bindings to exploring alternative approaches, I'm leaving no stone unturned in my quest to squash this bug once and for all. 

import java.io.Serializable;

public class Product implements Serializable {
    private String name;
    private double price;

    public Product(String name, double price) {
        this.name = name;
        this.price = price;
    }

    // Getter and setter methods for name and price

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }
}

        import java.io.Serializable;

        public class Product implements Serializable {
            private String name;
            private double price;

            public Product(String name, double price) {
                this.name = name;
                this.price = price;
            }

            // Getter and setter methods for name and price

            public String getName() {
                return name;
            }

            public void setName(String name) {
                this.name = name;
            }

            public double getPrice() {
                return price;
            }

            public void setPrice(double price) {
                this.price = price;
            }
        }
    

Example of  "Unsafe Object Binding in Checkmarx scan"

[HttpPost, ActionName("Delete")]
[ValidateAntiForgeryToken]
public ActionResult DeleteConfirmed(int id)
{
    if (id > 0) // Fix for CheckMarx: Unsafe Object Binding
    {
        Product product = db.Products.Find(id);
        Product productDel = db.Products.Remove(product);
        
        try
        {
            if (productDel != null && !string.IsNullOrEmpty(productDel.ProductName))
            {
                db.SaveChanges();
            }
            
            return RedirectToAction("Index");
        }
        catch (DataException ex)
        {
            throw ex;
        }
    }
    else
    {
        return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
    }
}

Due to @RequestBoby

import javax.servlet.http.HttpServletRequest;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import com.fasterxml.jackson.databind.ObjectMapper;

@RestController
public class ProductController {

    private final ObjectMapper mapper;

    public ProductController(ObjectMapper mapper) {
        this.mapper = mapper;
    }

    @PostMapping("/processProduct")
    public void processProduct(HttpServletRequest request) {
        try {
            Product product = mapper.readValue(request.getInputStream(), Product.class);
            // Process the product object as needed
        } catch (Exception e) {
            // Handle any exceptions
        }
    }
}

By manually handling the request body, we have more control over the deserialization process and can address any potential security vulnerabilities more effectively.

This approach allows us to bypass the issues associated with @RequestBody while still achieving the desired functionality.

However, it's essential to handle exceptions gracefully and ensure proper error handling to maintain the reliability and security of our application.

Facing Error when attempting to set data to an object annotated with @RequestBody

@PostMapping("/processData")
public ResponseEntity<?> processData(@RequestBody RequestBodyVariable requestBodyVariable, @RequestParam String valueFromRequestParamOrPathVariable) {
    try {
        // Instead of setting additional values directly to the requestBodyVariable, we use a separate variable
        // to store the value obtained from request parameters, headers, or path variables
        // and pass it along with the requestBodyVariable to the service method
        // requestBodyVariable.setAdditionalValue(valueFromRequestParamOrPathVariable);
        service.callServiceMethod(requestBodyVariable, valueFromRequestParamOrPathVariable);
        
        // Return appropriate response
        return ResponseEntity.ok().build();
    } catch (Exception e) {
        // Handle any exceptions
        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("An error occurred while processing the data.");
    }
}