Description
MiCode FileExplorer contains an authentication bypass vulnerability in the embedded SwiFTP FTP server component that allows network attackers to log in without valid credentials. Attackers can send arbitrary username and password combinations to the PASS command handler, which unconditionally grants access and allows listing, reading, writing, and deleting files exposed by the FTP server.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2026-11078
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2026-11078 pertains to an authentication bypass in the SwiFTP FTP server component embedded within MiCode FileExplorer. This flaw allows network attackers to gain unauthorized access to the FTP server without valid credentials. The severity of this vulnerability is rated with a Base Score of 9.3 according to CVSS 4.0, indicating a critical risk. The vector string CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N highlights the following characteristics:
- Attack Vector (AV:N): Network-based attack.
- Attack Complexity (AC:L): Low complexity required for exploitation.
- Authentication (AT:N): No authentication required.
- Privileges Required (PR:N): No privileges required.
- User Interaction (UI:N): No user interaction required.
- Confidentiality Impact (VC:H): High impact on confidentiality.
- Integrity Impact (VI:H): High impact on integrity.
- Availability Impact (VA:N): No impact on availability.
- Scope (SC:N): No change in security scope.
- Scope Impact (SI:N): No impact on scope.
- Secondary Impact (SA:N): No secondary impact.
2. Potential Attack Vectors and Exploitation Methods
Attackers can exploit this vulnerability by sending arbitrary username and password combinations to the PASS command handler of the SwiFTP FTP server. This unconditionally grants access, allowing attackers to:
- List Files: Enumerate directories and files.
- Read Files: Access and read sensitive data.
- Write Files: Upload malicious files or modify existing files.
- Delete Files: Remove critical files, potentially disrupting services.
Exploitation can be carried out using standard FTP clients or custom scripts designed to automate the attack process.
3. Affected Systems and Software Versions
The vulnerability affects MiCode FileExplorer, specifically the embedded SwiFTP FTP server component. The ENISA ID Product information indicates that the affected product is FileExplorer with a product version of "0," suggesting that all versions may be vulnerable unless explicitly patched.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Ensure that the latest patches and updates from MiCode are applied to FileExplorer.
- Network Segmentation: Isolate the FTP server from other critical systems to limit lateral movement.
- Access Controls: Implement strict access controls and firewall rules to restrict access to the FTP server.
- Monitoring and Logging: Enable comprehensive logging and monitoring to detect and respond to unauthorized access attempts.
- Intrusion Detection Systems (IDS): Deploy IDS to identify and alert on suspicious FTP activities.
- User Education: Educate users on the risks of unauthorized access and the importance of reporting suspicious activities.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations within the European Union that utilize MiCode FileExplorer. Unauthorized access to sensitive data can lead to data breaches, financial losses, and reputational damage. The high severity score underscores the need for immediate attention and remediation to prevent widespread exploitation.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Detection: Implement FTP traffic monitoring to detect unusual login attempts and unauthorized file operations.
- Response: Develop incident response plans specific to FTP server breaches, including steps for containment, eradication, and recovery.
- Prevention: Conduct regular vulnerability assessments and penetration testing to identify and address similar vulnerabilities proactively.
- Documentation: Maintain detailed documentation of the FTP server configuration, access logs, and incident response procedures.
Conclusion
EUVD-2026-11078 highlights a critical authentication bypass vulnerability in MiCode FileExplorer's SwiFTP FTP server component. Organizations must prioritize patching, implement robust security controls, and maintain vigilant monitoring to mitigate the risks associated with this vulnerability. The European cybersecurity landscape requires a coordinated effort to address such high-severity issues to protect sensitive data and maintain operational integrity.