CVE-2025-34205 is a critical vulnerability affecting Vasion Print Virtual Appliance Host (formerly PrinterLogic) in versions prior to 22.0.843 and the associated application prior to 20.0.1923, including both Virtual Appliance (VA) and SaaS deployments. The core issue stems from dangerous dead PHP code present in multiple Docker-hosted PHP instances. Specifically, a script located at /var/www/app/resetroot.php exists in several containers and lacks any form of authentication or access control. When accessed, this script executes a SQL update that resets the MySQL database administrator username to 'root' and sets its password hash to the SHA-512 hash of the string 'password'. This effectively grants an attacker full administrative access to the database without any authentication. Additionally, there is commented-out code in /var/www/app/lib/common/oses.php that unserializes session data (unserialize($_SESSION['osdata'])). If this code were to be re-enabled or reached with attacker-controlled serialized data, it could enable remote code execution (RCE) through PHP object injection vulnerabilities. The combination of unauthenticated password reset and potential deserialization vulnerabilities significantly increases the risk of full system compromise. The vulnerability has been assigned a CVSS 4.0 score of 9.3 (critical), reflecting its ease of exploitation (no authentication or user interaction required), network accessibility, and high impact on confidentiality, integrity, and availability. Although no known exploits are currently reported in the wild, the presence of such a trivial attack vector makes exploitation likely once discovered by attackers. The vendor has identified this as V-2023-003 — Dead / Insecure PHP Code, but no patches or mitigations have been linked yet.

For European organizations using Vasion Print Virtual Appliance Host, this vulnerability poses a severe risk. The ability for an unauthenticated attacker to reset the database root password and gain full database control undermines the confidentiality and integrity of all stored print job data, user credentials, and configuration settings. This could lead to data breaches, unauthorized data manipulation, or deletion. Furthermore, the potential for remote code execution via deserialization issues could allow attackers to execute arbitrary code on the host system, leading to full system compromise, lateral movement within the network, and disruption of printing services. Given that print infrastructure is often integrated into enterprise workflows, disruption could impact business continuity and operational efficiency. The lack of authentication and network accessibility means attackers can exploit this vulnerability remotely, increasing the attack surface. European organizations in sectors with high compliance requirements (e.g., finance, healthcare, government) face additional regulatory risks if sensitive data is exposed or systems are compromised. The vulnerability also raises concerns about supply chain security if managed print services or SaaS deployments are affected.

Immediate mitigation steps should include restricting network access to the vulnerable endpoints, particularly the resetroot.php script, by implementing firewall rules or network segmentation to limit exposure to trusted administrators only. Organizations should audit their Vasion Print deployments to identify affected versions and disable or remove the resetroot.php script from all containers if patching is not immediately available. Monitoring and logging access to the web application and database should be enhanced to detect any unauthorized attempts to access this script or unusual database credential changes. If possible, apply vendor patches or updates as soon as they are released. Additionally, review and harden PHP configurations to disable unsafe unserialize operations and ensure that any deserialization of user-controlled data is avoided or properly sanitized. Employ web application firewalls (WAFs) with custom rules to block access to known vulnerable endpoints. Conduct thorough security assessments of the print infrastructure to identify any lateral movement or persistence established by attackers exploiting this vulnerability. Finally, implement strong database credential management policies and rotate credentials after remediation.