Description
The Syncfusion EJ2 Node File Provider 0102271 is vulnerable to filesystem-server.js directory traversal. As a result, an unauthenticated attacker can: - On Windows, list files in any directory, read any file, delete any file, upload any file to any directory accessible by the web server. - On Linux, read any file, download any directory, delete any file, upload any file to any directory accessible by the web server.
EPSS Score:
7%
Comprehensive Technical Analysis of EUVD-2023-30358
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2023-30358 pertains to a directory traversal flaw in the Syncfusion EJ2 Node File Provider 0102271. This vulnerability allows an unauthenticated attacker to perform various unauthorized actions on the filesystem, including listing, reading, deleting, and uploading files. The severity of this vulnerability is rated with a CVSS base score of 9.8, which is considered critical. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates that the vulnerability can be exploited over the network without requiring user interaction or authentication, and it has high impacts on confidentiality, integrity, and availability.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Unauthenticated Access: The attacker does not need any credentials to exploit this vulnerability.
- Network Access: The attack can be conducted remotely over the network.
Exploitation Methods:
- Directory Traversal: The attacker can manipulate file paths to access directories and files outside the intended scope.
- File Operations: The attacker can perform various file operations such as reading, deleting, and uploading files.
Example Exploitation Scenario: An attacker could send specially crafted HTTP requests to the vulnerable server to traverse directories and access sensitive files, such as configuration files, user data, or system files. They could also upload malicious files to execute further attacks.
3. Affected Systems and Software Versions
The vulnerability affects the Syncfusion EJ2 Node File Provider version 0102271. Both Windows and Linux systems running this software are impacted, with slightly different capabilities depending on the operating system.
4. Recommended Mitigation Strategies
Immediate Actions:
- Patching: Apply the latest patches and updates provided by Syncfusion to mitigate the vulnerability.
- Access Controls: Implement strict access controls and authentication mechanisms to limit unauthorized access.
- Network Segmentation: Segment the network to isolate critical systems and reduce the attack surface.
Long-Term Strategies:
- Regular Audits: Conduct regular security audits and vulnerability assessments.
- Monitoring: Implement continuous monitoring and logging to detect and respond to suspicious activities.
- User Education: Educate users about the risks and best practices for handling sensitive data.
5. Impact on European Cybersecurity Landscape
The critical nature of this vulnerability poses significant risks to organizations across Europe. Unauthorized access to sensitive data and the ability to manipulate files can lead to data breaches, financial loss, and reputational damage. The widespread use of Syncfusion products in various industries, including healthcare, finance, and government, amplifies the potential impact.
6. Technical Details for Security Professionals
Vulnerability Details:
- CVE ID: CVE-2023-26563
- GSD ID: GSD-2023-26563
- Assigner: Mitre
- EPSS Score: 7 (indicating a moderate likelihood of exploitation)
References:
- Syncfusion EJ2 File Manager Node Filesystem Example
- Syncfusion EJ2 File Manager Documentation
- RupturaInfoSec GitHub Repository
Technical Recommendations:
- Code Review: Conduct a thorough code review to identify and fix similar vulnerabilities.
- Input Validation: Implement robust input validation to prevent directory traversal attacks.
- Least Privilege: Ensure that the web server runs with the least privilege necessary to minimize potential damage.
Conclusion: The directory traversal vulnerability in Syncfusion EJ2 Node File Provider 0102271 is a critical issue that requires immediate attention. Organizations should prioritize patching and implementing robust security measures to protect against potential exploitation. Continuous monitoring and regular security assessments are essential to maintain a strong cybersecurity posture.
This analysis provides a comprehensive overview of the vulnerability, its potential impact, and recommended mitigation strategies, tailored for cybersecurity professionals.