CVE-2023-31294
📋 TL;DR
A CSV injection vulnerability in Sesami Cash Point & Transport Optimizer (CPTO) version 6.3.8.6 allows remote attackers to extract sensitive information by manipulating the Delivery Name field. This affects organizations using the vulnerable CPTO software for logistics and cash management operations. Attackers can potentially access confidential data through crafted CSV exports.
💻 Affected Systems
- Sesami Cash Point & Transport Optimizer (CPTO)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete exposure of sensitive operational data including delivery details, financial information, and customer records through CSV file manipulation.
Likely Case
Extraction of delivery-related sensitive information and potential data leakage of operational logistics data.
If Mitigated
Limited or no data exposure with proper input validation and output encoding controls in place.
🎯 Exploit Status
Exploitation requires user interaction with CSV exports and knowledge of CSV injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 6.3.8.7 or later
Vendor Advisory: https://herolab.usd.de/en/security-advisories/usd-2022-0052/
Restart Required: Yes
Instructions:
1. Contact Sesami support for the latest patched version. 2. Backup current configuration and data. 3. Install the updated CPTO version. 4. Restart the CPTO service and verify functionality.
🔧 Temporary Workarounds
Input Validation for Delivery Name Field
allImplement strict input validation to prevent CSV injection payloads in the Delivery Name field
Not applicable - requires application-level code changes
CSV Output Sanitization
allSanitize CSV exports by encoding special characters and validating data before export
Not applicable - requires application-level code changes
🧯 If You Can't Patch
- Restrict user permissions to only necessary functions and implement least privilege access
- Monitor CSV export activities and implement DLP solutions to detect sensitive data exfiltration
🔍 How to Verify
Check if Vulnerable:
Check CPTO version in application settings or about dialog - if version is 6.3.8.6 (#718), system is vulnerableCheck Version:
Check CPTO application menu → Help → About or view application propertiesVerify Fix Applied:
Verify CPTO version is 6.3.8.7 or later and test CSV export functionality with special characters in Delivery Name field📡 Detection & Monitoring
Log Indicators:
- Unusual CSV export activities
- Multiple failed CSV export attempts
- Export logs showing special characters in Delivery Name field
Network Indicators:
- Unexpected CSV file downloads from CPTO server
- Large CSV file transfers to unusual destinations
SIEM Query:
source="cpto_logs" AND (event="csv_export" AND (data CONTAINS "=\"" OR data CONTAINS "+cmd|"))