Security Fix: Path Traversal Vulnerability in logs_parsing.go (Alert #474)

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Security Fix: Path Traversal Vulnerability

Alert Number: #474
Severity: MEDIUM
Rule: G304 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
File: pkg/cli/logs_parsing.go:57

Vulnerability Description

The parseAwInfo function in pkg/cli/logs_parsing.go uses the infoFilePath parameter directly in file operations (os.ReadFile and os.Stat) without sanitizing it first. This could potentially allow path traversal attacks where a malicious actor could use sequences like ../ to access files outside the intended directory.

The gosec scanner flagged line 57 where os.ReadFile(infoFilePath) is called with an unsanitized path parameter.

Fix Applied

Added path sanitization using filepath.Clean() at the beginning of the parseAwInfo function:

1. Line 35: Added cleanPath := filepath.Clean(infoFilePath) to sanitize the input path
2. Lines 36, 41, 52, 59: Updated all file operations and log statements to use cleanPath instead of infoFilePath

The filepath.Clean() function normalizes the path by:

• Removing redundant path separators and . elements
• Resolving .. elements to prevent directory traversal
• Converting paths to the shortest equivalent form

Security Best Practices

• Defense in Depth: Path sanitization is applied immediately when the parameter enters the function
• Consistent Usage: The sanitized cleanPath is used for all file operations (stat, read) and logging
• Standard Library Function: Uses Go's built-in filepath.Clean() which is the recommended approach for path normalization

Testing Considerations

• Verify that legitimate paths with . and .. components are handled correctly
• Confirm that path traversal attempts (e.g., ../../../../etc/passwd) are properly sanitized
• Test both file and directory path inputs to ensure both branches work correctly
• Validate that nested aw_info.json files in directories are still found correctly

Related Alerts

This fix follows the same pattern successfully applied to other path traversal vulnerabilities in the codebase, including:

• Alert [Custom Engine Test] Test Issue Created by Custom Engine #476, custom engine support in includes #475 in logs_metrics.go
• Alert [Custom Engine Test] Test Pull Request - Custom Engine Safe Output #457 in schema_compiler.go
• Alert Custom engine ai inference improvements #455 in compiler.go

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