CVE-2024-6746
📋 TL;DR
This vulnerability allows local network attackers to perform path traversal attacks in EasySpider 0.6.2 on Windows. By manipulating HTTP GET requests with directory traversal sequences like /../../../../../../../../../Windows/win.ini, attackers can access files outside the intended directory. Only users running the vulnerable version on Windows within local networks are affected.
💻 Affected Systems
- NaiboWang EasySpider
📦 What is this software?
Easyspider by Easyspider
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive system files, potentially exposing credentials, configuration data, or other sensitive information stored on the Windows system.
Likely Case
Local network users could access files in directories adjacent to the EasySpider installation, potentially reading configuration files or other data not intended for public access.
If Mitigated
With proper network segmentation and access controls, the impact is limited to authorized local users who already have some level of access to the system.
🎯 Exploit Status
Exploit has been publicly disclosed and uses simple path traversal sequences. Attack requires local network access but no authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://github.com/NaiboWang/EasySpider/issues/466
Restart Required: No
Instructions:
No official patch available. Monitor the GitHub issue for updates. Consider implementing workarounds or upgrading if a fixed version becomes available.
🔧 Temporary Workarounds
Network Segmentation
allRestrict EasySpider to run only on localhost or within isolated network segments to prevent access from unauthorized local network users.
Configure firewall rules to block external access to EasySpider's HTTP port (typically 8080 or similar)
Input Validation
windowsModify server.js to validate and sanitize file path inputs, rejecting any paths containing directory traversal sequences.
Edit \EasySpider\resources\app\server.js to add path validation before file operations
🧯 If You Can't Patch
- Run EasySpider only on isolated networks or localhost with no external network access
- Implement strict file system permissions to limit what files EasySpider can access
🔍 How to Verify
Check if Vulnerable:
Check if running EasySpider 0.6.2 on Windows and test with path traversal request: curl http://[target]:[port]/../../../../../../../../../Windows/win.iniCheck Version:
Check EasySpider version in application interface or installation directoryVerify Fix Applied:
After implementing workarounds, retest with the same path traversal request - should return error or empty response instead of file contents📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing multiple '../' sequences in the URL path
- Access to unexpected file paths in server logs
Network Indicators:
- HTTP GET requests with unusual path traversal patterns to EasySpider ports
SIEM Query:
source="easyspider.log" AND (url="*../*" OR url="*..\\*" OR url="*/../../*")