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NightVision Docs

Troubleshooting Scans

Disrupted Scans

Section titled “Disrupted Scans”

Scan Disrupted - Target is Unresponsive

Section titled “Scan Disrupted - Target is Unresponsive”

The scan has been disrupted because the target is offline. The HTTP request to the target timed out after 10 seconds. This is a bad sign as it means the target is unreachable and the scan cannot proceed.

Troubleshooting

Section titled “Troubleshooting”

First, ensure that your target is online and reachable.

  • If the target is online, you may need to adjust the scan or target settings to ensure the scan can proceed.
  • If the target is offline, you may need to investigate why the service is unavailable.

If your target is not accessible from the public internet, you will need to use the NightVision Command Line to run scans from a compute resource that can access the target over the network. This could be from your laptop, a CI/CD pipeline, on your corporate network, or within your private cloud environment.

Scan Disrupted - 300-Level Redirection

Section titled “Scan Disrupted - 300-Level Redirection”

The scan has been disrupted because the target returned a 300 level HTTP redirection error code, indicating that the server is redirecting the request to another location.

This is a bad sign because it means the scan not pointing to the correct target, which affects the scope of the scan. As such, the scan cannot proceed.

Troubleshooting

Section titled “Troubleshooting”

You may need to adjust the scan or target settings to ensure the scan can proceed.

Try visiting the target URL in your browser to see if you are redirected. If you are redirected, you may need to update the target URL in the scan configuration to the correct URL.

Scan Disrupted - 400-Level HTTP Client Error

Section titled “Scan Disrupted - 400-Level HTTP Client Error”

The scan has been disrupted because the target returned a 400 level HTTP error code, indicating that the server had an issue with the request.

This is a bad sign as it means the target is rejecting requests from NightVision. As such, the scan cannot proceed.

Troubleshooting

Section titled “Troubleshooting”

First, ensure that your target is online and reachable. If the target is online, you may need to adjust the scan or target settings to ensure the scan can proceed.

You can inspect the HTTP Request and Response to see the request and response headers and body to understand why the server rejected the request.

Feel free to reach out to support@nightvision.net if you need help troubleshooting the issue or need help.

Scan Disrupted - 401 Unauthorized

Section titled “Scan Disrupted - 401 Unauthorized”

The scan has been disrupted because the target returned a 401 HTTP response code, indicating that the credential provided to the server was not authorized to make the request.

This is a bad sign as it means the target will not allow the scan to reach the paths in the application that require authentication. As such, the scan cannot proceed.

Troubleshooting

Section titled “Troubleshooting”

First, ensure that your credential is correct and has the necessary permissions to access the target.

  1. Check the credentials used in the scan configuration to ensure they are correct.
  2. If you recorded the Interactive Login with Playwright, you can check the Login Status tab tab in the scan details to ensure the login was successful. You can observe each step of the login sequence and the screenshots to see if there are any errors.
  3. If you used Header or Cookie Authentication, it is possible that your session has expired. You can try to re-authenticate and update the scan configuration with the new headers or cookies.
  4. You can inspect the HTTP Request and Response to see the request and response headers and body to understand why the server rejected the request.

Feel free to reach out to support@nightvision.net if you need help troubleshooting the issue or need help.

Scan Disrupted - 403 Forbidden

Section titled “Scan Disrupted - 403 Forbidden”

The scan has been disrupted because the target returned a 403 HTTP response code, indicating that the web server understands the user’s request but can’t allow access. This usually happens when the credential provided to the server is not authorized to access the resource.

This is a bad sign as it means the target will not allow the scan to reach the paths in the application that require authentication. As such, the scan cannot proceed.

Troubleshooting

Section titled “Troubleshooting”

First, ensure that your credential is correct and has the necessary permissions to access the target.

  1. Check the credentials used in the scan configuration to ensure they are correct.
  2. If you recorded the Interactive Login with Playwright, you can check the Login Status tab tab in the scan details to ensure the login was successful. You can observe each step of the login sequence and the screenshots to see if there are any errors.
  3. If you used Header or Cookie Authentication, it is possible that your session has expired. You can try to re-authenticate and update the scan configuration with the new headers or cookies.

Feel free to reach out to support@nightvision.net if you need help troubleshooting the issue or need help.

Scan Disrupted - 500-Level HTTP Client Error

Section titled “Scan Disrupted - 500-Level HTTP Client Error”

The scan has been disrupted because the target returned a 500 level HTTP error code, indicating the server encountered an unexpected condition that prevented it from fulfilling the request.

This is a bad sign as it means the server is encountering issues that prevents NightVision’s scanners from accessing the target. As such, the scan cannot proceed.

Solution

Section titled “Solution”

First, ensure that your target server is online and available.

  1. You can inspect the HTTP Request and Response to see the request and response headers and body to understand why the server rejected the request.
  2. Inspect the application logs or server logs to understand why the server is returning a 500 error. The logs may provide more information on the issue that the server is encountering.

Feel free to reach out to support@nightvision.net if you need help troubleshooting the issue or need help.

Scan Disrupted - 503 Service Unavailable

Section titled “Scan Disrupted - 503 Service Unavailable”

The scan has been disrupted because the target is offline. The server returned a 503 HTTP response code, indicating the service is unavailable. This is a bad sign as it means the target is unreachable and the scan cannot proceed.

Troubleshooting

Section titled “Troubleshooting”

First, ensure that your target is online and reachable.

  • If the target is online, you may need to adjust the scan or target settings to ensure the scan can proceed.
  • If the target is offline, you may need to investigate why the service is unavailable.

If your target is not accessible from the public internet, you will need to use the NightVision Command Line to run scans from a compute resource that can access the target over the network. This could be from your laptop, a CI/CD pipeline, on your corporate network, or within your private cloud environment.