Description
Kanboard is project management software that focuses on the Kanban methodology. An authenticated Kanboard admin can read and delete arbitrary files from the server. File attachments, that are viewable or downloadable in Kanboard are resolved through its `path` entry in the `project_has_files` SQLite db. Thus, an attacker who can upload a modified sqlite.db through the dedicated feature, can set arbitrary file links, by abusing path traversals. Once the modified db is uploaded and the project page is accessed, a file download can be triggered and all files, readable in the context of the Kanboard application permissions, can be downloaded. This issue has been addressed in version 1.2.42 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
EPSS Score:
6%
Comprehensive Technical Analysis of EUVD-2024-45524
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2024-45524 affects Kanboard, a project management software that uses the Kanban methodology. The issue allows an authenticated admin to read and delete arbitrary files from the server through a path traversal vulnerability in the project_has_files SQLite database. This vulnerability is rated with a CVSS Base Score of 9.1, indicating a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H breaks down as follows:
- Attack Vector (AV): Network (N) - The vulnerability can be exploited remotely over the network.
- Attack Complexity (AC): Low (L) - The attack requires minimal complexity to execute.
- Privileges Required (PR): High (H) - The attacker must have administrative privileges.
- User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
- Scope (S): Changed (C) - The vulnerability affects a different security scope.
- Confidentiality (C): High (H) - There is a high impact on the confidentiality of the data.
- Integrity (I): High (H) - There is a high impact on the integrity of the data.
- Availability (A): High (H) - There is a high impact on the availability of the system.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves an authenticated admin uploading a modified SQLite database (sqlite.db) that contains malicious path entries. These entries can be crafted to perform path traversal attacks, allowing the attacker to read or delete arbitrary files on the server. The steps for exploitation are as follows:
- Admin Access: The attacker must first gain administrative access to Kanboard.
- Database Modification: The attacker modifies the
project_has_filestable in the SQLite database to include path traversal entries. - Upload Modified Database: The attacker uploads the modified database using Kanboard's dedicated feature.
- Trigger File Download: The attacker accesses the project page, triggering the download of the targeted files.
3. Affected Systems and Software Versions
The vulnerability affects Kanboard versions prior to 1.2.42. All users are advised to upgrade to version 1.2.42 or later to mitigate this issue. The affected product and vendor details are as follows:
- Product: Kanboard
- Vendor: Kanboard
- Affected Versions: < 1.2.42
4. Recommended Mitigation Strategies
To mitigate this vulnerability, the following strategies are recommended:
- Upgrade to the Latest Version: Upgrade Kanboard to version 1.2.42 or later, as this version addresses the vulnerability.
- Restrict Admin Access: Limit administrative access to trusted individuals and implement strong authentication mechanisms.
- Monitor for Unauthorized Changes: Implement monitoring and logging to detect unauthorized changes to the SQLite database.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.
- Backup and Recovery: Ensure that regular backups are taken and that a recovery plan is in place in case of data corruption or loss.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations using Kanboard for project management, particularly those within the European Union. The ability to read and delete arbitrary files can lead to data breaches, loss of sensitive information, and disruption of services. Given the critical nature of the vulnerability, it is essential for organizations to prioritize patching and implementing robust security measures to protect against such threats.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Vulnerability Type: Path Traversal
- Affected Component:
project_has_filestable in the SQLite database - Exploitation Method: Modification of the SQLite database to include path traversal entries
- Detection: Monitor for unusual file access patterns and unauthorized modifications to the SQLite database.
- Mitigation: Implement strict access controls, regular audits, and ensure timely patching of software.
Conclusion
The vulnerability described in EUVD-2024-45524 is critical and requires immediate attention from organizations using Kanboard. By understanding the attack vectors, affected systems, and recommended mitigation strategies, security professionals can effectively protect against this threat and ensure the integrity and availability of their project management systems.
References
- GitHub Security Advisory
- CVE ID: CVE-2024-51747
- EPSS Score: 6
- ENISA ID Product: ad925cea-9d9c-3205-a481-e03522f83135
- ENISA ID Vendor: a6f81a89-9e11-31d7-8c01-c8651da953ba