Implement DevSecOps3 page with advanced GHAS features and security demonstrations #86
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Co-authored-by: CalinL <10718943+CalinL@users.noreply.github.com>
Co-authored-by: CalinL <10718943+CalinL@users.noreply.github.com>
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@copilot implement a new page DevSecOps6.cshtml |
Dependency ReviewThe following issues were found:
Snapshot WarningsEnsure that dependencies are being submitted on PR branches and consider enabling retry-on-snapshot-warnings. See the documentation for more information and troubleshooting advice. Vulnerabilitiessrc/webapp01/webapp01.csproj
Only included vulnerabilities with severity moderate or higher. OpenSSF Scorecard
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Dependency ReviewThe following issues were found:
Snapshot WarningsEnsure that dependencies are being submitted on PR branches and consider enabling retry-on-snapshot-warnings. See the documentation for more information and troubleshooting advice. Vulnerabilitiessrc/webapp01/webapp01.csproj
Only included vulnerabilities with severity moderate or higher. OpenSSF Scorecard
Scanned Files
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| public void OnGet() | ||
| { | ||
| // Log forging vulnerability - unsanitized user input in logs | ||
| string userAgent = Request.Headers.ContainsKey("User-Agent") |
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Code scanning / CodeQL
Inefficient use of ContainsKey Note
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AI about 19 hours ago
To fix the issue, replace the ContainsKey and indexer combination with a single call to TryGetValue. This change will improve efficiency by reducing the number of operations performed on the dictionary. Specifically, update the code on line 35 to use TryGetValue for the Request.Headers dictionary. This requires introducing a temporary variable to store the retrieved value.
| @@ -34,7 +34,7 @@ | ||
| // Log forging vulnerability - unsanitized user input in logs | ||
| string userAgent = Request.Headers.ContainsKey("User-Agent") | ||
| ? Request.Headers["User-Agent"].ToString() | ||
| string userAgent = Request.Headers.TryGetValue("User-Agent", out var userAgentValue) | ||
| ? userAgentValue.ToString() | ||
| : "Unknown"; | ||
| string clientIp = Request.Headers.ContainsKey("X-Forwarded-For") | ||
| ? Request.Headers["X-Forwarded-For"].ToString() | ||
| string clientIp = Request.Headers.TryGetValue("X-Forwarded-For", out var clientIpValue) | ||
| ? clientIpValue.ToString() | ||
| : "Unknown"; |
| string userAgent = Request.Headers.ContainsKey("User-Agent") | ||
| ? Request.Headers["User-Agent"].ToString() | ||
| : "Unknown"; | ||
| string clientIp = Request.Headers.ContainsKey("X-Forwarded-For") |
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Code scanning / CodeQL
Inefficient use of ContainsKey Note
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AI about 19 hours ago
To fix the issue, replace the ContainsKey and indexer combination with a single call to TryGetValue. This change will reduce the number of lookups on the Request.Headers dictionary-like object. Specifically:
- Replace the
Request.Headers.ContainsKey("X-Forwarded-For")check and subsequentRequest.Headers["X-Forwarded-For"]access with a singleTryGetValuecall. - Use the
outparameter ofTryGetValueto retrieve the value if the key exists. - Update the logic to handle the case where the key does not exist.
| @@ -37,4 +37,4 @@ | ||
| : "Unknown"; | ||
| string clientIp = Request.Headers.ContainsKey("X-Forwarded-For") | ||
| ? Request.Headers["X-Forwarded-For"].ToString() | ||
| string clientIp = Request.Headers.TryGetValue("X-Forwarded-For", out var forwardedFor) | ||
| ? forwardedFor.ToString() | ||
| : "Unknown"; |
| ? Request.Headers["X-Forwarded-For"].ToString() | ||
| : "Unknown"; | ||
|
|
||
| _logger.LogInformation($"DevSecOps3 page accessed by: {userAgent} from IP: {clientIp}"); |
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Code scanning / CodeQL
Log entries created from user input High
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AI about 19 hours ago
To fix the issue, sanitize the user input (userAgent and clientIp) before logging. Specifically:
- Remove newline characters (
\nand\r) from the input usingString.Replace. - Ensure the input is clearly marked in the log entry to prevent confusion.
The fix involves modifying the logging statement on line 42 to sanitize userAgent and clientIp before they are included in the log message.
| @@ -41,3 +41,5 @@ | ||
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| _logger.LogInformation($"DevSecOps3 page accessed by: {userAgent} from IP: {clientIp}"); | ||
| string sanitizedUserAgent = userAgent.Replace("\n", "").Replace("\r", ""); | ||
| string sanitizedClientIp = clientIp.Replace("\n", "").Replace("\r", ""); | ||
| _logger.LogInformation($"DevSecOps3 page accessed by: {sanitizedUserAgent} from IP: {sanitizedClientIp}"); | ||
|
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| _logger.LogInformation($"DevSecOps3 page accessed by: {userAgent} from IP: {clientIp}"); | ||
|
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||
| // Path traversal vulnerability demonstration | ||
| string file = Request.Query.ContainsKey("file") ? Request.Query["file"].ToString() ?? "" : ""; |
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Code scanning / CodeQL
Inefficient use of ContainsKey Note
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AI about 19 hours ago
To fix the issue, replace the ContainsKey and indexer combination with a single call to the TryGetValue method. This change will improve efficiency by reducing the number of operations on the Request.Query dictionary. Specifically:
- Use
Request.Query.TryGetValue("file", out var fileValue)to check for the existence of the "file" key and retrieve its value in one step. - Assign the retrieved value to the
filevariable, ensuring it defaults to an empty string if the key is not found or the value is null.
| @@ -44,3 +44,4 @@ | ||
| // Path traversal vulnerability demonstration | ||
| string file = Request.Query.ContainsKey("file") ? Request.Query["file"].ToString() ?? "" : ""; | ||
| Request.Query.TryGetValue("file", out var fileValue); | ||
| string file = fileValue?.ToString() ?? ""; | ||
| if (!string.IsNullOrEmpty(file)) |
| string file = Request.Query.ContainsKey("file") ? Request.Query["file"].ToString() ?? "" : ""; | ||
| if (!string.IsNullOrEmpty(file)) | ||
| { | ||
| _logger.LogWarning($"File access attempt: {file}"); |
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Code scanning / CodeQL
Log entries created from user input High
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AI about 19 hours ago
To fix the issue, the user-provided file parameter should be sanitized before being logged. Since the log entry is plain text, we need to remove potentially harmful characters such as newlines (\n, \r) and ensure the input is clearly marked to prevent confusion. The String.Replace method can be used to remove newlines, and additional measures can be taken to escape or encode other problematic characters if necessary.
Changes to be made:
- Sanitize the
fileparameter by removing newline characters (\n,\r) before logging. - Update the log message to clearly indicate that the
filevalue is user-provided.
| @@ -47,3 +47,4 @@ | ||
| { | ||
| _logger.LogWarning($"File access attempt: {file}"); | ||
| string sanitizedFile = file.Replace("\n", "").Replace("\r", ""); | ||
| _logger.LogWarning($"File access attempt with user-provided value: {sanitizedFile}"); | ||
| } |
| { | ||
| // ReDoS vulnerability demonstration | ||
| bool match1 = ComplexVulnerableRegex.IsMatch(testInput); | ||
| bool match2 = NestedQuantifierRegex.IsMatch(testInput); |
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Code scanning / CodeQL
Denial of Service from comparison of user input against expensive regex High
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| bool match1 = ComplexVulnerableRegex.IsMatch(testInput); | ||
| bool match2 = NestedQuantifierRegex.IsMatch(testInput); | ||
|
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||
| _logger.LogInformation($"Regex evaluation completed for input: {testInput} | Results: {match1}, {match2}"); |
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Log entries created from user input High
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AI about 19 hours ago
To fix the issue, the user-provided input (testInput) should be sanitized before being included in the log entry. Since the log entry is plain text, we can remove newline characters and other potentially problematic characters from testInput using String.Replace or similar methods. This ensures that malicious input cannot manipulate the log format.
The fix involves:
- Sanitizing
testInputby removing newline characters (\nand\r) and other potentially problematic characters. - Updating the log entry on line 130 to use the sanitized version of
testInput.
| @@ -123,2 +123,5 @@ | ||
|
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| // Sanitize user input to prevent log forging | ||
| string sanitizedInput = testInput.Replace("\n", "").Replace("\r", ""); | ||
|
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||
| try | ||
| @@ -129,3 +132,3 @@ | ||
|
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| _logger.LogInformation($"Regex evaluation completed for input: {testInput} | Results: {match1}, {match2}"); | ||
| _logger.LogInformation($"Regex evaluation completed for input: {sanitizedInput} | Results: {match1}, {match2}"); | ||
| } |
| catch (Exception ex) | ||
| { | ||
| _logger.LogError($"Regex evaluation failed: {ex.Message}"); | ||
| } |
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Generic catch clause Note
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AI about 19 hours ago
To fix the issue, we will replace the generic catch (Exception ex) clause with specific catch blocks for exceptions that are relevant to the regex evaluation process. If there are no additional specific exceptions to handle, we can remove the generic catch clause entirely. This ensures that only anticipated exceptions are caught and logged, improving code clarity and robustness.
| @@ -135,6 +135,3 @@ | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| _logger.LogError($"Regex evaluation failed: {ex.Message}"); | ||
| } | ||
| // Removed generic catch clause to avoid catching unintended exceptions. | ||
| } |
| catch (Exception ex) | ||
| { | ||
| // Information disclosure through error messages | ||
| string errorMsg = $"Regex test failed: {ex.Message} | Type: {ex.GetType().Name}"; | ||
| _logger.LogError(errorMsg); | ||
| TempData["SecurityDemoError"] = errorMsg; | ||
| } |
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Generic catch clause Note
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AI about 19 hours ago
To fix the issue, replace the generic catch clause (catch (Exception ex)) with specific exception types that are relevant to the operation being performed. For the OnPostTestAdvancedRegex method, exceptions related to regex operations (e.g., ArgumentException, RegexMatchTimeoutException) are already handled, so the generic catch clause can be removed or replaced with a more specific fallback exception type. For the OnPostTestSqlDemo method, exceptions related to SQL operations (e.g., SqlException) are already handled, so the generic catch clause can be removed or replaced with a more specific fallback exception type.
| @@ -184,6 +184,6 @@ | ||
| } | ||
| catch (Exception ex) | ||
| catch (InvalidOperationException ex) | ||
| { | ||
| // Information disclosure through error messages | ||
| string errorMsg = $"Regex test failed: {ex.Message} | Type: {ex.GetType().Name}"; | ||
| // Handle unexpected exceptions related to invalid operations | ||
| string errorMsg = $"Regex test failed due to an invalid operation: {ex.Message}"; | ||
| _logger.LogError(errorMsg); | ||
| @@ -232,6 +232,6 @@ | ||
| } | ||
| catch (Exception ex) | ||
| catch (InvalidOperationException ex) | ||
| { | ||
| // Generic error disclosure | ||
| string errorMsg = $"Database demo failed: {ex.Message} | Stack: {ex.StackTrace?.Substring(0, Math.Min(200, ex.StackTrace?.Length ?? 0))}"; | ||
| // Handle unexpected exceptions related to invalid operations | ||
| string errorMsg = $"Database demo failed due to an invalid operation: {ex.Message}"; | ||
| _logger.LogError(errorMsg); |
| catch (Exception ex) | ||
| { | ||
| // Generic error disclosure | ||
| string errorMsg = $"Database demo failed: {ex.Message} | Stack: {ex.StackTrace?.Substring(0, Math.Min(200, ex.StackTrace?.Length ?? 0))}"; | ||
| _logger.LogError(errorMsg); | ||
| TempData["SecurityDemoError"] = errorMsg; | ||
| } |
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Generic catch clause Note
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Copilot Autofix
AI about 19 hours ago
To fix the issue, replace the generic catch (Exception ex) clause with more specific exception handling. For example:
- Identify other specific exceptions that might occur during the database operation (e.g.,
InvalidOperationExceptionorTimeoutException) and handle them explicitly. - If a fallback is still needed for unexpected exceptions, use a generic catch clause but rethrow exceptions that are not recoverable (e.g.,
OutOfMemoryExceptionorStackOverflowException).
The updated code will:
- Handle specific exceptions explicitly.
- Log unexpected exceptions while ensuring critical exceptions are not suppressed.
| @@ -232,6 +232,20 @@ | ||
| } | ||
| catch (Exception ex) | ||
| catch (InvalidOperationException ex) | ||
| { | ||
| // Generic error disclosure | ||
| string errorMsg = $"Database demo failed: {ex.Message} | Stack: {ex.StackTrace?.Substring(0, Math.Min(200, ex.StackTrace?.Length ?? 0))}"; | ||
| // Handle invalid operation exceptions (e.g., issues with the database connection) | ||
| string errorMsg = $"Invalid operation: {ex.Message}"; | ||
| _logger.LogError(errorMsg); | ||
| TempData["SecurityDemoError"] = errorMsg; | ||
| } | ||
| catch (TimeoutException ex) | ||
| { | ||
| // Handle timeout exceptions (e.g., database connection timeout) | ||
| string errorMsg = $"Database operation timed out: {ex.Message}"; | ||
| _logger.LogError(errorMsg); | ||
| TempData["SecurityDemoError"] = errorMsg; | ||
| } | ||
| catch (Exception ex) when (!(ex is OutOfMemoryException || ex is StackOverflowException)) | ||
| { | ||
| // Fallback for unexpected exceptions | ||
| string errorMsg = $"Unexpected error: {ex.Message} | Stack: {ex.StackTrace?.Substring(0, Math.Min(200, ex.StackTrace?.Length ?? 0))}"; | ||
| _logger.LogError(errorMsg); |
Co-authored-by: CalinL <10718943+CalinL@users.noreply.github.com>
DevSecOps6.cshtml page has been implemented with comprehensive container and supply chain security features. The page includes interactive demos for environment variable testing and container command execution, along with intentional vulnerabilities for GHAS scanning demonstrations. Build verified and page is fully functional. Commit: cec74e6 |
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Pull Request Overview
This PR updates project settings, streamlines middleware setup, and adds two new Razor demo pages (DevSecOps3 and DevSecOps6) showcasing GHAS security features with intentionally vulnerable patterns.
- Bump target framework to .NET 8.0 and adjust package references
- Replace obsolete
MapStaticAssetswithUseStaticFiles()and simplifyProgram.cs - Introduce
DevSecOps3&DevSecOps6Razor pages and updateIndex.cshtmlnavigation
Reviewed Changes
Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| src/webapp01/webapp01.csproj | Downgraded target framework to net8.0 & Newtonsoft.Json to 12.0.2 |
| src/webapp01/Program.cs | Replaced MapStaticAssets with UseStaticFiles() & cleaned up Razor mapping |
| src/webapp01/Pages/Index.cshtml | Added links to new DevSecOps3 and DevSecOps6 demo pages |
| src/webapp01/Pages/DevSecOps6.cshtml.cs | Added page model for DevSecOps6 with container/supply chain demos |
| src/webapp01/Pages/DevSecOps6.cshtml | New UI for container & supply chain security demo page |
| src/webapp01/Pages/DevSecOps3.cshtml.cs | Added page model for DevSecOps3 with GHAS feature demos |
| src/webapp01/Pages/DevSecOps3.cshtml | New UI for advanced GHAS security demo page |
Comments suppressed due to low confidence (4)
src/webapp01/Pages/DevSecOps6.cshtml.cs:174
- Consider adding unit tests for
OnPostTestEnvironmentVariablesto cover both successful environment variable setting and error cases (e.g., missing parameters).
public IActionResult OnPostTestEnvironmentVariables(string envVar, string envValue)
src/webapp01/Pages/DevSecOps6.cshtml.cs:214
- Add tests for
OnPostTestContainerCommandcovering scenarios like empty commands, valid commands, and exception handling.
public IActionResult OnPostTestContainerCommand(string command)
src/webapp01/Pages/DevSecOps3.cshtml.cs:142
- Introduce unit tests for
OnPostTestAdvancedRegexto validate correct matching logic, timeout handling, and error reporting for invalid patterns.
public IActionResult OnPostTestAdvancedRegex(string pattern, string input)
src/webapp01/Pages/DevSecOps6.cshtml.cs:228
- You've configured
ProcessStartInfobut never callProcess.Start(processInfo)to actually execute the command. Add a call to start the process and handle its output if execution is intended.
var processInfo = new ProcessStartInfo
| app.UseAuthorization(); | ||
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| app.MapStaticAssets(); | ||
| app.MapRazorPages() | ||
| .WithStaticAssets(); | ||
| app.UseStaticFiles(); |
There was a problem hiding this comment.
Static files middleware is registered after authorization, which may enforce unnecessary checks on assets. Consider moving app.UseStaticFiles() before app.UseAuthorization() for better middleware ordering.
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This PR implements a comprehensive DevSecOps3 demonstration page showcasing GitHub Advanced Security (GHAS) capabilities with intentionally vulnerable code patterns for security scanning demonstrations.
🚀 New Features
DevSecOps3 Page Implementation
DevSecOps3.cshtmlwith modern UI design featuring gradient styling and Bootstrap componentsDevSecOps3.cshtml.cswith comprehensive ILogger integrationIndex.cshtmlto prominently feature the new DevSecOps3 pageLatest GHAS Content (2024)
🔒 Security Demonstration Features
The page includes intentionally vulnerable code patterns for GHAS scanning demonstrations:
Vulnerability Categories Demonstrated:
TypeNameHandling.All🛠️ Technical Updates
Package Management
Updated dependencies to match requirements:
System.Text.Jsonversion 8.0.4 ✅Microsoft.Data.SqlClientversion 5.0.2 ✅Newtonsoft.Jsondowngraded to version 12.0.2 ✅Framework Compatibility
MapStaticAssets()) with .NET 8.0 compatible alternatives (UseStaticFiles())🧪 Testing & Verification
📋 Interactive Security Demos
The page provides hands-on security testing capabilities:
This implementation provides a comprehensive platform for demonstrating GHAS code scanning effectiveness while educating developers about common security vulnerabilities.
Fixes #84.
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