Schannel Event Logging & Error Fixes
Unlock the secrets of Schannel event logging and unleash a world of error fixes with this enlightening article.
Enabling Schannel Event Logging
To enable Schannel event logging on Windows Server, follow these steps:
1. Open the Event Viewer by typing “Event Viewer” in the search bar and selecting the application.
2. In the Event Viewer, navigate to “Applications and Services Logs” > “Microsoft” > “Windows” > “Schannel”.
3. Right-click on “Schannel” and select “Properties”.
4. In the “General” tab, check the box that says “Enable logging”.
5. Click “OK” to save the changes.
Once Schannel event logging is enabled, you can view the event logs to troubleshoot any errors or issues related to SSL/TLS connections. Look for events with Event IDs such as 36882, 36878, 36875, and 36868. These events will provide detailed information about the errors and help you identify potential fixes.
Remember to regularly check the event logs for any new Schannel events, as they can provide valuable insights into the security and performance of your server.
Event ID 36864: Successful Loading of Schannel Security Package
Event ID 36864 indicates the successful loading of the Schannel security package. This event is logged in the System Event Log and can help troubleshoot Schannel-related issues.
To fix Schannel errors, you can follow these steps:
1. Check for patches and updates for your OS version, such as Windows Server 2012 or Windows 8.
2. Refresh the Schannel provider by using the DCX command.
3. Review the event details and error messages to identify the specific issue.
4. Look for any related Event IDs, such as 36875 for remote server problems or 36868 for SSL errors.
5. Verify the client and server certificates, secure channel authority, and client credentials.
6. If necessary, consult the Microsoft support forums or the blog of Bhuvnesh Kumar for further assistance.
Event ID 36865: Fatal Error Opening Cryptographic Subsystem
If you encounter Event ID 36865 with the error message “Fatal Error Opening Cryptographic Subsystem,” there are a few troubleshooting steps you can take to resolve the issue.
First, make sure to refresh the system event log to ensure you have the most up-to-date information. If the error persists, check for any recent updates or patches that may have caused the problem.
You can also try checking the Secure Channel (Schannel) event log for any related warnings or errors. Look out for Event IDs 36875, 36878, and 36882, as they may provide additional clues about the issue.
If the problem persists, consider reaching out to the security support provider for further assistance. They may be able to provide specific guidance based on your OS version (such as Windows Server 2012 or Windows 8).
Remember, identifying and resolving the cause of Event ID 36865 is crucial to maintaining a secure and stable system.
python
import win32evtlog
import win32evtlogutil
def read_schannel_events():
# Connect to the Security event log
hand = win32evtlog.OpenEventLog(None, "Security")
# Query for schannel events (Event ID 36888)
flags = win32evtlog.EVENTLOG_BACKWARDS_READ | win32evtlog.EVENTLOG_SEQUENTIAL_READ
events = win32evtlog.ReadEventLog(hand, flags, 0x00000000, win32evtlog.EVENTLOG_AUDIT_FAILURE)
# Iterate through the events
for event in events:
if event.EventID == 36888:
# Process the schannel event
event_dict = win32evtlogutil.SafeFormatMessage(event, "EventLogDescription")
print(event_dict)
if __name__ == "__main__":
read_schannel_events()
In the above code, we use the `win32evtlog` module from the `pywin32` library to connect to the Security event log and read schannel events with Event ID 36888 (which is commonly associated with schannel errors). The `win32evtlogutil.SafeFormatMessage` function helps in retrieving the event’s description by formatting the raw event data.
Please note that schannel events can have various properties and data associated with them. The above code is a basic example to get you started, but you might need to customize it further based on your specific requirements.
Keep in mind that schannel events involve sensitive information, so it’s important to handle them securely and adhere to any relevant security guidelines.
Event ID 36866: Failed Loading of Schannel Security Package
If you encounter the Event ID 36866 error, it means that the Schannel security package failed to load. This can cause disruptions to your system’s security protocols. To fix this issue, follow these steps:
1. Check for any recent changes or updates that might have caused the problem.
2. Verify that the required Schannel DLL files are present and properly registered.
3. Ensure that the necessary certificates and security settings are correctly configured.
4. Restart the affected services or applications.
5. If the error persists, consider reinstalling the Schannel security package.
Remember to consult relevant documentation or seek further assistance if needed. By addressing this error promptly, you can ensure the smooth functioning of your system’s security protocols.
Event ID 36867: SSL Credential Creation (Client or Server)
If you encounter Event ID 36867, it means there was an issue with SSL credential creation, either on the client or server side. This event is logged by the Schannel event logging system.
To resolve this error, follow these steps:
1. Check the event details: Review the event details to understand the specific error message and any additional information provided.
2. Verify certificates and trust: Ensure that all certificates and trusted authorities are correctly configured and up to date.
3. Update OS and security support provider: Make sure you are using the latest OS version and security support provider.
4. Troubleshoot specific error codes: If you receive error codes like 36875, 36878, or 36882, refer to our blog or the Microsoft support pages for specific solutions.
Additionally, it can fix issues related to missing or corrupt DLL files, which are crucial for program functionality. While Fortect cannot fix all schannel events errors, it is capable of resolving some of the underlying causes, ensuring smoother performance and preventing freezing or slowdowns.
Event ID 36868: Properties of SSL Credential’s Private Key
| Property | Description |
|---|---|
| Event ID | 36868 |
| Event Source | Schannel |
| Event Type | Error |
| Event Category | SSL/TLS Protocol |
| Description | This event indicates a problem with the properties of the SSL credential’s private key. It usually occurs when the private key is not properly configured or has become corrupted. |
| Possible Causes |
|
| Recommended Actions |
|
| Additional Information | For more information about troubleshooting SSL/TLS protocol errors and fixing Schannel event logs, refer to the article “Schannel Event Logging & Error Fixes” available at [insert link]. |
Event ID 36869: SSL Credential’s Certificate Without Private Key Information
Event ID 36869 indicates that the SSL credential’s certificate does not contain the private key information. This can cause issues with secure communication between servers and clients. To fix this error, follow these steps:
1. Check if the certificate was imported correctly. Ensure that the private key is included during the import process.
2. If the certificate is self-signed, generate a new certificate with the private key and install it.
3. If the certificate is issued by a Certificate Authority, contact the CA to obtain the private key and re-install the certificate.
4. Ensure that the correct certificate is being used for the intended purpose. Verify that the certificate is assigned to the appropriate services or applications.
5. Restart the affected services or applications after making any changes to the certificate.
If the issue persists, refer to Microsoft documentation or seek assistance from a qualified professional.
Event ID 36870: Fatal Error Accessing SSL Credential Private Key
If you encounter this event ID 36870 error, it means there is a fatal error while accessing the SSL credential private key. This error can lead to problems with secure communication and may impact the functioning of your system.
To resolve this issue, follow these steps:
1. Check the certificate and private key permissions: Ensure that the appropriate permissions are set for the certificate and private key files. Make sure the associated user or service account has the necessary access rights.
2. Validate the certificate chain: Verify that the certificate chain is valid and properly installed. Use the Dcx command or other SQL methods to validate the chain.
3. Update the OS and software: Ensure that you are using the latest software and OS versions, as older versions may have known issues with SSL credentials.
4. Review event logs: Check the Event Logging for related events, such as Event ID 36882, 36878, or 36875. These events may provide additional information or clues for troubleshooting.
Event ID 36871: Fatal Error Creating SSL Credential
If you encounter Event ID 36871 with the error message “Fatal Error Creating SSL Credential,” here are a few steps you can take to resolve it:
1. Check your server’s OS version and ensure it is supported by Schannel.
2. Review the event log for any related warnings or errors, such as Event ID 36878 or Event ID 36868. These may provide additional context for troubleshooting.
3. Verify that the client certificate being used is valid and trusted.
4. Ensure that the necessary SSL/TLS protocols and cipher suites are enabled on the server.
5. If you are using SQL methods for SSL certificate management, double-check the configuration and consider updating to a newer version.
6. If all else fails, try restarting the server or contacting Microsoft support for further assistance.
Remember to always back up your system before making any changes.
Event ID 36872: No Default Server Credential on System
If you are encountering the Event ID 36872 error message stating “No Default Server Credential on System,” here are some steps to resolve it:
1. Check the CSS and ensure that all the necessary configurations are in place.
2. Verify if the server has the required client certificate installed.
3. Make sure that the server’s OS version is compatible with the required actions.
4. Look for any relevant error messages such as schannel error 10013, internal error, error 36874, or fatal alerts.
5. If the error persists, try setting up a default server credential using the Key Information Property.
6. Ensure that the necessary MP and GW servers are properly configured.
7. Review the event logging for any other related errors, such as Event ID 36878 or Event ID 36875.
Event ID 36873: No Supported Cipher Suites for SSL Connection
- Overview: Understand the implications and causes of Event ID 36873.
- Common Error: Learn about the occurrence of “No Supported Cipher Suites for SSL Connection” error.
- Security Impact: Identify the potential security risks associated with this event.
- Supported Cipher Suites: Explore the importance of having proper cipher suites for SSL connections.
- Error Resolution: Discover methods to resolve the Event ID 36873 error.
- Update and Patch: Learn about the significance of keeping your system up to date.
- Diagnostic Tools: Find out which diagnostic tools can assist in troubleshooting this error.
- Best Practices: Implement recommended practices to avoid encountering this error in the future.
- Additional Resources: Access useful external references and documentation for further assistance.
Event ID 36874: Unsupported Cipher Suites by Server for Remote Client Application
Event ID 36874 indicates that the server does not support the cipher suites required by the remote client application. To fix this issue, you can follow these steps:
1. Check the server’s cipher suite configuration. Ensure that it supports the required cipher suites for the remote client application.
2. Update the server’s operating system to the latest version, if possible, as newer OS versions often include support for more cipher suites.
3. If the remote client application requires specific cipher suites, make sure they are properly configured on both the server and client sides.
4. If the issue persists, enable Schannel event logging to gather more information about the error. Use Event ID 36882 to identify the certificate involved, Event ID 36878 for certificate chain issues, and Event ID 36875 for problems with the remote server.
5. Analyze the logged events to identify the root cause of the error and take appropriate actions to resolve it.
Remember, maintaining up-to-date cipher suite configurations and enabling event logging can help troubleshoot and fix Schannel errors effectively.
Beware of schannel events as they can indicate potential security vulnerabilities or unauthorized access attempts within your network. Download this tool to run a scan
