Overview
CVE-2025-47222 describes an Incorrect Access Control vulnerability found in Keyfactor SignServer versions prior to 7.3.1. This is issue 3 of 3 vulnerabilities identified in this timeframe. While the severity and CVSS score are currently unavailable, understanding and addressing this vulnerability is crucial for maintaining the security and integrity of your SignServer environment.
Technical Details
The specific technical details of CVE-2025-47222 are currently limited. However, the “Incorrect Access Control” designation suggests that the vulnerability allows unauthorized users or processes to access or modify resources or functionalities within Keyfactor SignServer. The exact mechanisms by which this occurs require further investigation but are likely related to flaws in authentication, authorization, or permission management within the SignServer application. It is important to examine your SignServer configuration to ensure that you are using the principle of least privilege and following security best practices.
CVSS Analysis
At the time of publication (2025-11-13T21:15:49.707), a CVSS score has not been assigned to CVE-2025-47222. It is highly recommended to monitor the National Vulnerability Database (NVD) or Keyfactor’s security advisories for updates regarding the CVSS score and severity assessment. Once available, the CVSS score will provide a quantitative measure of the vulnerability’s potential impact.
Important: The absence of a CVSS score does not diminish the importance of addressing this vulnerability.
Possible Impact
The potential impact of CVE-2025-47222 depends on the specifics of the access control flaw. Potential consequences could include:
- Unauthorized Code Signing: An attacker could potentially use SignServer to sign malicious code, leading to the distribution of malware under a trusted certificate.
- Data Breaches: Sensitive information stored or processed by SignServer could be exposed to unauthorized access.
- System Compromise: An attacker might gain control over the SignServer system itself, potentially compromising other systems within the network.
- Denial of Service: An attacker could disrupt the normal operation of SignServer, preventing legitimate users from signing code or accessing resources.
Mitigation or Patch Steps
The primary mitigation step is to upgrade to Keyfactor SignServer version 7.3.1 or later. Keyfactor has addressed this vulnerability in the 7.3.1 release.
- Upgrade SignServer: Download and install the latest version of Keyfactor SignServer (7.3.1 or later) from the Keyfactor website.
- Review Access Controls: After upgrading, carefully review the access control settings within SignServer to ensure that only authorized users and processes have the necessary permissions.
- Monitor Logs: Regularly monitor SignServer logs for any suspicious activity that may indicate an attempted exploit.
- Implement Least Privilege: Configure user roles and permissions according to the principle of least privilege, granting users only the minimum access necessary to perform their tasks.
