CVE-2024-1107
📋 TL;DR
This CVE describes an authorization bypass vulnerability in Talya Informatics Travel APPS where attackers can manipulate user-controlled keys to access unauthorized functionality. It affects all Travel APPS installations before version 17.0.68, potentially allowing unauthorized access to sensitive travel management data and functions.
💻 Affected Systems
- Talya Informatics Travel APPS
📦 What is this software?
Travel Apps by Talyabilisim
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to access, modify, or delete all travel data, manipulate bookings, access financial information, and potentially pivot to other systems.
Likely Case
Unauthorized access to sensitive travel information, booking manipulation, data exfiltration, and privilege escalation within the Travel APPS system.
If Mitigated
Limited impact with proper network segmentation, strong authentication, and monitoring in place, though authorization bypass would still be possible.
🎯 Exploit Status
Exploitation requires some level of access (authenticated user) but the bypass technique itself is straightforward once understood. No public exploit code is currently available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v17.0.68 or later
Vendor Advisory: https://www.usom.gov.tr/bildirim/tr-24-0809
Restart Required: Yes
Instructions:
1. Download Travel APPS v17.0.68 or later from Talya Informatics. 2. Backup current installation and data. 3. Apply the update following vendor instructions. 4. Restart the Travel APPS service. 5. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to Travel APPS to only authorized users and networks
Enhanced Monitoring
allImplement detailed logging and monitoring for authorization attempts and access patterns
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the Travel APPS interface
- Enable detailed audit logging and monitor for unusual access patterns or authorization attempts
🔍 How to Verify
Check if Vulnerable:
Check Travel APPS version in administration panel or configuration files. If version is below 17.0.68, the system is vulnerable.Check Version:
Check Travel APPS web interface admin panel or consult application configuration files for version information.Verify Fix Applied:
Verify version is 17.0.68 or higher in administration panel and test authorization controls for proper enforcement.📡 Detection & Monitoring
Log Indicators:
- Multiple failed authorization attempts followed by successful access
- Access to endpoints or data without proper authentication logs
- User accessing resources outside their normal role patterns
Network Indicators:
- Unusual API calls to authorization endpoints
- Requests with manipulated parameter keys
- Access patterns inconsistent with user roles
SIEM Query:
source="travel_apps" AND (event_type="authorization_failure" OR event_type="unusual_access") | stats count by user, resource