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+# Unsafe Consumption of APIs (API10:2023)
+Due to the above vulnerability, the attacker is able to send or receive information from the sources of the supply chain or implement her desired requests in a specific group.
+
+* Example
+
+GET request to receive weather information from a third-party service:
+
+```html
+GET /api/weather?location=New+York
+```
+
+### Non-compliant code (.NET)
+
+```c#
+[ApiController]
+[Route("api/weather")]
+public class WeatherController : ControllerBase
+{
+    private readonly IWeatherService weatherService;
+    public WeatherController(IWeatherService weatherService)
+    {
+        this.weatherService = weatherService;
+    }
+
+    // GET /api/weather
+    [HttpGet]
+    public IActionResult GetWeather(string location)
+    {
+        // Make a direct call to the third-party weather API
+        WeatherData weatherData =
+        weatherService.GetWeatherData(location);
+
+        return Ok(weatherData);
+    }
+    
+    // Other methods...
+}
+```
+
+### Compliant code (.NET)
+
+```c#
+[ApiController]
+[Route("api/weather")]
+public class WeatherController : ControllerBase
+{
+    private readonly IWeatherService weatherService;
+    public WeatherController(IWeatherService weatherService)
+    {
+        this.weatherService = weatherService;
+    }
+
+    // GET /api/weather
+    [HttpGet]
+    public IActionResult GetWeather(string location)
+    {
+        // Validate the location parameter and restrict access to trusted sources
+        if (!IsValidLocation(location))
+        {
+         return BadRequest();
+        }
+
+        // Make a call to the third-party weather API through the weather service
+        WeatherData weatherData = weatherService.GetWeatherData(location);
+
+        if (weatherData == null)
+        {
+            return NotFound();
+        }
+        return Ok(weatherData);
+    }
+    private bool IsValidLocation(string location)
+    {
+        // Implement validation logic to ensure the location is safe and trusted
+
+        // This could involve white-listing trusted sources or validating against a known set of safe locations
+
+        // Return true if the location is valid, false otherwise
+        // Example: return Regex.IsMatch(location, "^[a-zA-Z]+(,[a-zA-Z]+)*$");
+
+        // Implement your validation logic here
+        // For simplicity, assuming any location is valid
+        return true;
+    }
+
+    // Other methods...
+}
+```
+
+## General prevention suggestions:
+
+* Trust data received from external APIs with caution and rigorous validation.
+
+* Check and verify the security and standards of the third-party service before connecting to it.
+
+* Using encryption to communicate with external services and prevent sending sensitive information normally.
+
+* Limiting access and levels allowed to third-party services and setting appropriate limits.
+
+* Implementing protection mechanisms such as prototyping and generalization to ensure the security and reliability of data received from external services.
+
+* Continuous monitoring and monitoring to detect and fix any defects in the security of external services.
+
+* Training developers about security principles and correct use of external APIs.
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