Overview
CVE-2025-47220 describes an Incorrect Access Control vulnerability found in Keyfactor SignServer versions prior to 7.3.1. This is issue 1 of 3 reported in this release. While the severity and CVSS score are currently listed as N/A, it’s crucial to understand the potential implications and take appropriate mitigation steps.
Technical Details
The specifics of the Incorrect Access Control vulnerability are detailed in the Keyfactor release notes. Insufficient access control mechanisms within SignServer before version 7.3.1 could potentially allow unauthorized users or processes to perform actions they shouldn’t be permitted to. The exact attack vectors and impacted functionalities depend on the specific misconfiguration or code flaws related to access control.
CVSS Analysis
Currently, the CVSS score and severity for CVE-2025-47220 are listed as N/A. This may be due to ongoing analysis or lack of complete information. It is recommended to consult the Keyfactor documentation and support channels for the most up-to-date information regarding the CVSS score and severity level as it becomes available. Even without a specified score, addressing access control issues is a best practice to minimize risk.
Possible Impact
While the exact impact is currently undefined, an Incorrect Access Control vulnerability could lead to several potential consequences:
- Unauthorized Code Signing: Attackers might be able to sign malicious code with legitimate certificates, potentially compromising systems and applications.
- Data Breaches: Sensitive data handled by SignServer could be accessed or modified by unauthorized parties.
- System Compromise: Depending on the severity, attackers could gain control of the SignServer system itself.
- Reputation Damage: If the system is exploited, it could severely impact the reputation of the organization using the system.
It’s crucial to assess the potential impact based on your specific SignServer configuration and the sensitivity of the data it handles.
Mitigation and Patch Steps
The primary mitigation step is to upgrade your Keyfactor SignServer instance to version 7.3.1 or later. This version includes fixes for the reported Incorrect Access Control vulnerability.
- Backup your SignServer instance: Before performing any upgrade, create a complete backup of your SignServer configuration and data.
- Download the latest version: Obtain the latest version of Keyfactor SignServer from the official Keyfactor website.
- Follow the upgrade instructions: Carefully follow the upgrade instructions provided in the Keyfactor documentation.
- Verify the installation: After the upgrade, thoroughly test the SignServer functionality to ensure that everything is working as expected.
- Review Access Control Configuration: Even after upgrading, review your SignServer access control configuration to ensure it is properly secured and adheres to the principle of least privilege.
