CVE-2024-50054
📋 TL;DR
CVE-2024-50054 is a path traversal vulnerability in back-end systems that allows attackers to read arbitrary files from the file system by manipulating filename parameters. This affects systems running vulnerable software versions that process user-supplied filenames without proper validation. Organizations using affected products should prioritize patching.
💻 Affected Systems
- Specific products not detailed in advisory; appears to be industrial control systems based on CISA reference
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of sensitive files including configuration files, credentials, source code, and system files leading to full system compromise.
Likely Case
Unauthorized access to sensitive configuration files, application data, or user information stored on the server.
If Mitigated
Limited or no access to sensitive files due to proper input validation and file system restrictions.
🎯 Exploit Status
Path traversal attacks are well-understood and typically easy to exploit once the vulnerable endpoint is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific version
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-24-326-07
Restart Required: Yes
Instructions:
1. Review CISA advisory ICSA-24-326-07 2. Identify affected products 3. Apply vendor-provided patches 4. Restart affected services 5. Verify fix implementation
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict validation of filename parameters to prevent directory traversal sequences
# Example for web applications: validate filename contains only alphanumeric, dash, underscore, dot
# Reject any filename containing ../, ..\, or absolute paths
Web Server Restrictions
allConfigure web server to restrict file access to specific directories
# Apache: Use Directory directives with proper permissions
# Nginx: Use location blocks with root restrictions
# IIS: Set request filtering rules
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block path traversal patterns
- Restrict network access to vulnerable systems using firewall rules and network segmentation
🔍 How to Verify
Check if Vulnerable:
Test by attempting to access files using ../ sequences in filename parameter. Example: GET /download?filename=../../../etc/passwdCheck Version:
Check application version via admin interface or version files. Command varies by product.Verify Fix Applied:
Attempt same traversal attacks after patch; should receive error or sanitized response. Check that only allowed files in intended directory are accessible.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing ../ or ..\ sequences in parameters
- Failed file access attempts outside expected directories
- Unusual file access patterns
Network Indicators:
- HTTP requests with directory traversal patterns in URL parameters
- Responses containing sensitive file contents
SIEM Query:
web.url:*../* OR web.param:*../* OR web.param:*..\\*