CVE-2025-34233 is a high-severity vulnerability affecting Vasion Print Virtual Appliance Host versions prior to 25.1.102 and Application versions prior to 25.1.1413 in VA/SaaS deployments. The vulnerability arises from a protection mechanism failure related to the PHP file_get_contents() function, which is used to retrieve data from URLs. Specifically, when an administrator configures a printer's hostname or a similar callback field, the input is passed unchecked to file_get_contents() or cURL functions. These functions follow HTTP redirects without restrictions such as allow-lists, scheme validation, or IP-range filtering. This lack of validation allows an attacker with administrator-level privileges to specify a malicious hostname that points to an external web server controlled by the attacker. The malicious server can respond with an HTTP 301 redirect to internal endpoints, such as the AWS EC2 metadata service. Because the vulnerable server follows the redirect blindly, it retrieves sensitive metadata including cloud IAM credentials. These credentials can then be exfiltrated or stored by the attacker, enabling them to enumerate internal services and pivot deeper into the SaaS infrastructure. This vulnerability is categorized under CWE-918 (Server-Side Request Forgery - SSRF) and CWE-693 (Protection Mechanism Failure). Although a patch exists, the exact date of its introduction is unclear. The CVSS 4.0 base score is 8.5, reflecting the network attack vector, low attack complexity, no user interaction, and high impact on confidentiality and integrity. No known exploits are currently reported in the wild.

For European organizations using Vasion Print Virtual Appliance Host or its SaaS application, this vulnerability poses a significant risk. Exploitation could lead to unauthorized access to cloud IAM credentials, enabling attackers to compromise cloud resources, exfiltrate sensitive data, and disrupt services. Given the integration of print management systems in enterprise environments, attackers could leverage this vulnerability to move laterally within networks, escalate privileges, and access critical infrastructure. The breach of cloud credentials is particularly concerning for organizations relying on AWS EC2 instances, as attackers could manipulate or disable cloud services, leading to operational downtime and data loss. Additionally, compliance with GDPR and other European data protection regulations could be jeopardized if personal or sensitive data is exposed due to this vulnerability. The high severity and ease of exploitation by an admin-level attacker underscore the need for immediate remediation to prevent potential data breaches and service disruptions.

1. Immediate upgrade to Vasion Print Virtual Appliance Host version 25.1.102 or later and Application version 25.1.1413 or later to ensure the vulnerability is patched. 2. Implement strict input validation and sanitization on all administrator-configurable fields that accept hostnames or URLs, enforcing allow-lists for trusted domains and IP ranges. 3. Disable or restrict the use of PHP functions like file_get_contents() and cURL to prevent automatic following of redirects, or configure them to reject redirects to internal IP ranges and metadata service endpoints. 4. Employ network-level controls such as firewall rules or proxy configurations to block outbound requests from the appliance to internal metadata services or other sensitive endpoints. 5. Conduct regular audits of cloud IAM credentials and rotate keys frequently to limit the impact of potential credential exposure. 6. Monitor logs for unusual outbound HTTP requests or redirects originating from the print appliance to detect exploitation attempts. 7. Restrict administrator privileges to trusted personnel and enforce multi-factor authentication to reduce the risk of malicious configuration changes. 8. Engage in penetration testing and vulnerability scanning focused on SSRF vectors to identify and remediate similar weaknesses.