feat: reduce warning #2980
feat: reduce warning #2980
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| _queueName = azureConfiguration.ServiceBus.QueueName; | ||
| _serviceBusSender = serviceBusClient.CreateSender(_queueName); | ||
| var messageQueue = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); |
Check failure
Code scanning / CodeQL
Log entries created from user input High
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AI about 2 months ago
To address the vulnerability, sanitize the message input by removing newline (\n) and carriage return (\r) characters before logging. This can be accomplished with message.Replace("\r", "").Replace("\n", ""), which will prevent attackers from injecting new log lines. Only the log statements that include the user-provided value (here, lines 35 and 37) need to have the sanitized message. We should not alter the message value when sending to Service Bus, only sanitizing for logging. No extra dependencies are necessary; these are standard string methods in C#.
Changes summary
- Files/regions to change:
- File:
BervProject.WebApi.Boilerplate/Services/Azure/AzureQueueServices.cs - Affected lines: 35, 37 (only the log output, not the message sending)
- File:
- What is needed:
- Sanitize user input for logs:
.Replace("\r", "").Replace("\n", "").
- Sanitize user input for logs:
| @@ -32,9 +32,10 @@ | ||
| try | ||
| { | ||
| var messageQueue = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); | ||
| var sanitizedMessage = message.Replace("\r", "").Replace("\n", ""); | ||
| _logger.LogDebug($"Sending message: {sanitizedMessage}"); | ||
| await _serviceBusSender.SendMessageAsync(messageQueue); | ||
| _logger.LogDebug($"Sent message: {message}"); | ||
| _logger.LogDebug($"Sent message: {sanitizedMessage}"); | ||
| return true; | ||
| } | ||
| catch (Exception ex) |
| var messageQueue = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); | ||
| await _serviceBusSender.SendMessageAsync(messageQueue); | ||
| _logger.LogDebug($"Sent message: {message}"); |
Check failure
Code scanning / CodeQL
Log entries created from user input High
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AI about 2 months ago
To mitigate log forging risks, any user-supplied data written to logs should be sanitized. In this context, sanitation involves removing newline and carriage return characters from user input before logging it, to prevent malicious users from introducing line breaks and forging log entries. The best fix is to sanitize the message variable in the logger statements within SendMessage. The changes should only apply to the log statements, so that the message sent to the queue is unaffected.
We will:
- Replace both logger statements in SendMessage to use a sanitized version of
message(with\rand\nremoved). - Implement the sanitation inline (e.g.,
message.Replace("\r", "").Replace("\n", "")or using a helper method if preferred). - No new methods are strictly necessary since this is a simple transformation.
- No new imports are needed.
Edits are required only in BervProject.WebApi.Boilerplate/Services/Azure/AzureQueueServices.cs.
| @@ -32,9 +32,10 @@ | ||
| try | ||
| { | ||
| var messageQueue = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); | ||
| var sanitizedMessage = message.Replace("\r", "").Replace("\n", ""); | ||
| _logger.LogDebug($"Sending message: {sanitizedMessage}"); | ||
| await _serviceBusSender.SendMessageAsync(messageQueue); | ||
| _logger.LogDebug($"Sent message: {message}"); | ||
| _logger.LogDebug($"Sent message: {sanitizedMessage}"); | ||
| return true; | ||
| } | ||
| catch (Exception ex) |
| { | ||
| _logger.LogError(ex.ToString()); | ||
| return false; | ||
| _logger.LogDebug($"Sending message: {message} at {_queueName}"); |
Check failure
Code scanning / CodeQL
Log entries created from user input High
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AI about 2 months ago
To fix this problem, user input (message) should be sanitized before being inserted into log messages. The recommended approach for plain text logs is to strip or replace lines breaks and other control characters from the logged value to prevent any attempt at log forging via user input. The minimal fix is to replace line breaks (\r, \n, Environment.NewLine) in the message string with empty strings or visible delimiters before passing to the log. This should be done directly in the relevant log statement on line 72 (_logger.LogDebug(...)) of AzureStorageQueueService.cs.
Steps needed:
- In
AzureStorageQueueService.cs, update the log statement on line 72 to log a sanitized version ofmessage, where line breaks are removed. - The sanitization can be done inline, e.g.
message.Replace("\r", "").Replace("\n", ""), or withEnvironment.NewLine. - No need to create a new method or make changes elsewhere since it only affects log output.
| @@ -69,7 +69,9 @@ | ||
| { | ||
| if (_queueClient.Exists()) | ||
| { | ||
| _logger.LogDebug($"Sending message: {message} at {_queueName}"); | ||
| // Remove line breaks from user input before logging | ||
| var sanitizedMessage = message?.Replace("\r", "").Replace("\n", ""); | ||
| _logger.LogDebug($"Sending message: {sanitizedMessage} at {_queueName}"); | ||
| var response = _queueClient.SendMessage(message); | ||
| var messageId = response?.Value?.MessageId; | ||
| _logger.LogDebug($"Sent message to {_queueName} with id: {messageId}"); |
| try | ||
| { | ||
| var encodedMessage = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); |
Check failure
Code scanning / CodeQL
Log entries created from user input High
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AI about 2 months ago
To fix the problem, user input to logs should be sanitized before being written. For plain text log files, this means stripping or replacing newlines and carriage returns to ensure the message cannot create additional log entries or break the log structure. The best way to do this is to use string.Replace for \r and \n to remove or substitute these characters from the user-supplied message before logging. This should be done immediately before including the value in log entries.
In this specific case, the changes needed:
- In
BervProject.WebApi.Boilerplate/Services/Azure/TopicServices.cs, within theSendTopicmethod, sanitize themessagevariable before it is included in the log entries. This can be done with a local variable holding a 'loggable' message in which any\rand\nhave been stripped. - Both occurrences of
messagein log lines (lines 35 and 37) should use this sanitized/loggable version.
No new external dependencies are needed; only built-in string methods are required.
| @@ -29,12 +29,14 @@ | ||
| /// <inheritdoc /> | ||
| public async Task<bool> SendTopic(string message) | ||
| { | ||
| // Sanitize user-supplied message to prevent log-forging | ||
| var safeMessage = (message ?? string.Empty).Replace("\r", "").Replace("\n", ""); | ||
| try | ||
| { | ||
| var encodedMessage = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); | ||
| _logger.LogDebug($"Sending message: {safeMessage}"); | ||
| await _serviceBusSender.SendMessageAsync(encodedMessage); | ||
| _logger.LogDebug($"Sent message: {message}"); | ||
| _logger.LogDebug($"Sent message: {safeMessage}"); | ||
| return true; | ||
| } | ||
| catch (Exception ex) |
| var encodedMessage = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); | ||
| await _serviceBusSender.SendMessageAsync(encodedMessage); | ||
| _logger.LogDebug($"Sent message: {message}"); |
Check failure
Code scanning / CodeQL
Log entries created from user input High
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Copilot Autofix
AI about 2 months ago
To prevent log forging based on untrusted user input, all user-supplied strings written to logs must be sanitized. For plain text logs, this usually means ensuring that newlines (\n, \r, and any platform-specific line-endings) are stripped or replaced. The most reliable approach is to use string.Replace (possibly chained for both \r and \n, as in .NET strings can mix both) on the input at the time of logging.
Specifically, in TopicServices.cs, lines 35 and 37 log the raw message. Both should be modified to log a sanitized version of message where all newline characters are replaced or removed. It is recommended to define a local variable in the method (or even a private static method for sanitization for reuse and clarity) to hold the sanitized string and use it in logging.
Changes are required only within BervProject.WebApi.Boilerplate/Services/Azure/TopicServices.cs in the SendTopic method, replacing log calls to safely log sanitized user input.
| @@ -29,12 +29,14 @@ | ||
| /// <inheritdoc /> | ||
| public async Task<bool> SendTopic(string message) | ||
| { | ||
| // Sanitize message to prevent log forging by removing newlines | ||
| var sanitizedMessage = message?.Replace("\r", "").Replace("\n", ""); | ||
| try | ||
| { | ||
| var encodedMessage = new ServiceBusMessage(message); | ||
| _logger.LogDebug($"Sending message: {message}"); | ||
| _logger.LogDebug($"Sending message: {sanitizedMessage}"); | ||
| await _serviceBusSender.SendMessageAsync(encodedMessage); | ||
| _logger.LogDebug($"Sent message: {message}"); | ||
| _logger.LogDebug($"Sent message: {sanitizedMessage}"); | ||
| return true; | ||
| } | ||
| catch (Exception ex) |
Codecov Report❌ Patch coverage is Additional details and impacted files@@ Coverage Diff @@
## main #2980 +/- ##
==========================================
+ Coverage 25.20% 25.41% +0.20%
==========================================
Files 40 40
Lines 730 724 -6
Branches 20 21 +1
==========================================
Hits 184 184
+ Misses 542 536 -6
Partials 4 4 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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