CVE-2023-6190
📋 TL;DR
This path traversal vulnerability allows attackers to access files outside the intended directory by manipulating file paths. It affects İzmir Katip Çelebi University's University Information Management System. Attackers could potentially read sensitive system files or upload malicious files to arbitrary locations.
💻 Affected Systems
- İzmir Katip Çelebi University University Information Management System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise via arbitrary file read/write, leading to data exfiltration, credential theft, or remote code execution.
Likely Case
Unauthorized access to sensitive configuration files, user data, or system files containing credentials.
If Mitigated
Limited impact with proper input validation, file permission restrictions, and web application firewalls in place.
🎯 Exploit Status
Path traversal vulnerabilities typically have low exploitation complexity, especially when unauthenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version dated 30.11.2023 or later
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-23-0736
Restart Required: Yes
Instructions:
1. Contact İzmir Katip Çelebi University for updated version. 2. Backup current installation. 3. Apply patch/update to version dated 30.11.2023 or later. 4. Restart application services. 5. Verify fix implementation.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation to reject path traversal sequences like ../, ..\, absolute paths, and null bytes.
Web Application Firewall Rules
allDeploy WAF rules to block path traversal patterns in HTTP requests.
🧯 If You Can't Patch
- Implement strict file permission controls to limit accessible directories
- Deploy network segmentation to isolate vulnerable system from sensitive data
🔍 How to Verify
Check if Vulnerable:
Test for path traversal by attempting to access files outside web root using ../ sequences in file parameters.Check Version:
Check system documentation or contact vendor for version informationVerify Fix Applied:
Retest path traversal attempts after patch; successful attempts should be blocked or return errors.📡 Detection & Monitoring
Log Indicators:
- Multiple failed file access attempts with ../ patterns
- Unusual file access patterns outside normal directories
Network Indicators:
- HTTP requests containing ../, ..\, or absolute path patterns in parameters
SIEM Query:
web.url:*../* OR web.uri:*../* OR http.request.uri:*../*