CVE-2025-7426 Overview
CVE-2025-7426 is an information disclosure vulnerability affecting the MINOVA TTA service that exposes FTP authentication credentials through an exposed debug port (1604). This vulnerability allows unauthenticated remote attackers to obtain active FTP credentials, potentially gaining access to sensitive internal data and import structures. The vulnerability is particularly dangerous in enterprise environments where FTP servers are integrated into automated business processes such as Electronic Data Interchange (EDI) or data integration workflows.
Critical Impact
Unauthenticated remote attackers can extract FTP credentials and gain access to sensitive business data, potentially leading to data manipulation, extraction, or abuse of automated business processes.
Affected Products
- MINOVA TTA Service (versions with exposed debug ports)
Discovery Timeline
- 2025-08-25 - CVE-2025-7426 published to NVD
- 2025-08-25 - Last updated in NVD database
Technical Details for CVE-2025-7426
Vulnerability Analysis
This vulnerability falls under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). The MINOVA TTA service inadvertently exposes debug functionality on multiple network ports without requiring authentication. The primary concern is debug port 1604, which leaks FTP authentication credentials in cleartext. Additional debug ports (1602, 1603, and 1636) expose service architecture information and system activity logs, providing attackers with reconnaissance data that could facilitate further attacks.
The exposure of FTP credentials is particularly severe because these credentials typically provide access to directories containing business-critical data. In environments utilizing EDI or automated data integration, compromised FTP access could allow attackers to inject malicious data into business workflows, exfiltrate sensitive information, or disrupt automated processes.
Root Cause
The root cause of this vulnerability is the presence of debug functionality that remains accessible in production deployments. Debug ports are configured to listen on network interfaces without authentication requirements, exposing sensitive operational data including FTP credentials. This represents a failure to properly secure or disable debug features before deployment to production environments.
Attack Vector
The attack is network-based and requires no authentication or user interaction. An attacker with network access to the vulnerable MINOVA TTA service can connect directly to debug port 1604 to retrieve FTP credentials. The attack flow typically involves:
- Network scanning to identify systems running the MINOVA TTA service with exposed debug ports
- Connecting to port 1604 to retrieve FTP authentication credentials
- Using the obtained credentials to access the FTP server
- Extracting sensitive data or manipulating import structures used in business processes
Additional reconnaissance can be performed via ports 1602, 1603, and 1636 to gather service architecture details and monitor system activity logs, enabling more targeted attacks.
Detection Methods for CVE-2025-7426
Indicators of Compromise
- Unexpected network connections to ports 1602, 1603, 1604, or 1636 on systems running MINOVA TTA service
- Authentication attempts to FTP servers from unfamiliar IP addresses using valid credentials
- Anomalous data modifications or extractions from FTP-accessible directories
- Evidence of credential harvesting activity in network traffic logs
Detection Strategies
- Implement network intrusion detection rules to alert on connections to debug ports (1602, 1603, 1604, 1636)
- Monitor FTP server authentication logs for login attempts from unauthorized IP addresses
- Deploy network traffic analysis to identify cleartext credential exposure patterns
- Configure SIEM rules to correlate debug port access with subsequent FTP authentication events
Monitoring Recommendations
- Enable detailed logging on MINOVA TTA service and associated FTP servers
- Implement real-time alerting for any network traffic to the affected debug ports
- Monitor file integrity on FTP directories used for EDI or data integration processes
- Regularly audit access patterns to business-critical data accessible via FTP
How to Mitigate CVE-2025-7426
Immediate Actions Required
- Block external access to debug ports 1602, 1603, 1604, and 1636 using firewall rules
- Rotate all FTP credentials that may have been exposed through the debug interface
- Review FTP server access logs for unauthorized access or data manipulation
- Disable debug functionality in the MINOVA TTA service if not required for operations
- Segment the MINOVA TTA service network to limit exposure
Patch Information
Organizations should contact MINOVA directly for patch availability and updated software versions that address this vulnerability. For detailed technical information, refer to the Cryptron Security Advisory and MINOVA TTA product information.
Workarounds
- Implement network-level access controls to restrict access to debug ports from trusted management networks only
- Deploy a web application firewall or network firewall to block incoming connections to ports 1602, 1603, 1604, and 1636
- Consider disabling the debug service entirely if the functionality is not required for operational purposes
- Implement VPN or jump host requirements for any necessary debug access
# Example firewall rules to block debug port access
# Linux iptables
iptables -A INPUT -p tcp --dport 1602 -j DROP
iptables -A INPUT -p tcp --dport 1603 -j DROP
iptables -A INPUT -p tcp --dport 1604 -j DROP
iptables -A INPUT -p tcp --dport 1636 -j DROP
# Windows Firewall (PowerShell)
New-NetFirewallRule -DisplayName "Block MINOVA Debug Ports" -Direction Inbound -LocalPort 1602,1603,1604,1636 -Protocol TCP -Action Block
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
