Description
N-central < 2025.4 is vulnerable to authentication bypass via path traversal
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-131913
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2025-131913, also known as CVE-2025-11366, affects N-central versions prior to 2025.4. The vulnerability allows for authentication bypass via path traversal, which is a critical issue. The CVSS (Common Vulnerability Scoring System) base score of 9.4 indicates a high severity level. The CVSS vector breakdown is as follows:
- AV:N (Network Vector): The vulnerability is exploitable over the network.
- AC:L (Low Attack Complexity): The attack requires low skill or resources.
- AT:N (No Authentication Required): No authentication is needed to exploit the vulnerability.
- PR:L (Low Privileges Required): The attacker needs low-level privileges.
- UI:N (No User Interaction): No user interaction is required.
- VC:H (High Confidentiality Impact): Complete loss of confidentiality.
- VI:H (High Integrity Impact): Complete loss of integrity.
- VA:H (High Availability Impact): Complete loss of availability.
- SC:H (High Scope Change): The vulnerability affects components beyond the security scope.
- SI:H (High Scope Integrity): The vulnerability affects the integrity of other components.
- SA:H (High Scope Availability): The vulnerability affects the availability of other components.
This high severity score underscores the critical nature of the vulnerability, making it a top priority for immediate remediation.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector for this vulnerability is path traversal, which allows an attacker to access files and directories that are stored outside the root directory of the web server. Potential exploitation methods include:
- Directory Traversal Attacks: An attacker can manipulate file paths to access sensitive files, such as configuration files, password files, or other critical system files.
- Authentication Bypass: By exploiting the path traversal vulnerability, an attacker can bypass authentication mechanisms, gaining unauthorized access to the system.
- Data Exfiltration: Sensitive data can be exfiltrated by accessing files that should be restricted.
3. Affected Systems and Software Versions
The vulnerability affects N-central versions prior to 2025.4. Organizations using these versions are at risk and should prioritize updating to the latest version to mitigate the vulnerability.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Immediate Patching: Upgrade to N-central version 2025.4 or later, which includes the necessary security patches.
- Access Controls: Implement strict access controls and least privilege principles to limit the potential impact of an exploit.
- Network Segmentation: Segment the network to isolate critical systems and reduce the attack surface.
- Monitoring and Logging: Enhance monitoring and logging to detect any suspicious activities that may indicate an attempted exploit.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations within the European Union that rely on N-central for their IT management and monitoring needs. Given the high severity score, the potential for widespread impact is considerable. Organizations must act swiftly to mitigate the risk, as failure to do so could result in data breaches, unauthorized access, and potential disruptions to critical services.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Detection: Implement intrusion detection systems (IDS) and intrusion prevention systems (IPS) to detect and block path traversal attempts.
- Configuration: Ensure that web server configurations are hardened to prevent directory traversal attacks. This includes disabling directory listing and ensuring proper file permissions.
- Testing: Conduct penetration testing to identify and remediate any path traversal vulnerabilities in the environment.
- Incident Response: Develop and maintain an incident response plan that includes steps for identifying, containing, and remediating path traversal attacks.
Conclusion
The vulnerability EUVD-2025-131913 is a critical issue that requires immediate attention from organizations using N-central versions prior to 2025.4. By understanding the severity, potential attack vectors, and mitigation strategies, security professionals can effectively protect their systems and data from this significant threat.