CVE-2025-34231 is a server-side request forgery (SSRF) vulnerability identified in Vasion Print Virtual Appliance Host and Application versions prior to 25.1.102 and 25.1.1413 respectively. The vulnerability exists in the '/var/www/app/console_release/hp/badgeSetup.php' script, which is accessible from the internet without any authentication. This script builds URLs from user-supplied parameters and invokes either a custom processCurl() function or PHP’s file_get_contents() function to make HTTP requests. Critically, the hostname or URL is taken directly from the request without any form of validation such as whitelisting, scheme restriction, IP range validation, or outbound network filtering. This lack of validation enables an unauthenticated attacker to coerce the server into issuing arbitrary HTTP requests to internal network resources. The SSRF can be both blind and non-blind, allowing attackers to perform internal network reconnaissance, access sensitive internal services, potentially leak credentials, pivot to other systems within the network, and exfiltrate data. The vulnerability does not require any authentication or user interaction, increasing its risk profile. The CVSS 4.0 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, with high impact on confidentiality, low on integrity, and none on availability. Although a patch has been confirmed, the timeline for its release is unclear, and no known exploits are reported in the wild yet. This vulnerability is categorized under CWE-306 (Missing Authentication for Critical Function) and CWE-918 (Server-Side Request Forgery).

For European organizations, this vulnerability poses a significant risk, especially for those deploying Vasion Print Virtual Appliance Hosts exposed to the internet. Successful exploitation can lead to unauthorized internal network reconnaissance, exposing sensitive internal services and infrastructure details. Attackers can leverage this to identify and exploit further vulnerabilities, potentially leading to credential theft and lateral movement within the network. This can compromise confidentiality of sensitive data, including internal documents and user credentials, and may facilitate data exfiltration. Critical sectors such as government, finance, healthcare, and manufacturing that rely on print management solutions could face operational disruptions and data breaches. The unauthenticated nature of the vulnerability means attackers can exploit it remotely without prior access, increasing the attack surface. The lack of user interaction and low complexity further heighten the risk. Given the appliance’s role in print infrastructure, disruption or compromise could also impact business continuity and compliance with data protection regulations such as GDPR.

1. Immediately apply the vendor-provided patches for Vasion Print Virtual Appliance Host (version 25.1.102 or later) and Application (version 25.1.1413 or later) once available. 2. Restrict external access to the vulnerable '/var/www/app/console_release/hp/badgeSetup.php' endpoint by implementing network-level access controls such as firewall rules or VPN requirements, ensuring only trusted internal or administrative users can reach it. 3. Implement strict egress filtering on the appliance and network perimeter to prevent unauthorized outbound HTTP requests to internal IP ranges or sensitive services. 4. Conduct internal network segmentation to limit the appliance’s ability to reach critical internal resources, reducing the impact of SSRF exploitation. 5. Monitor logs and network traffic for unusual outbound HTTP requests originating from the appliance, which may indicate exploitation attempts. 6. Employ web application firewalls (WAFs) with custom rules to detect and block SSRF attack patterns targeting the vulnerable script. 7. Review and harden application code to validate and sanitize all user inputs used in URL construction, including implementing whitelisting and scheme restrictions. 8. Educate IT and security teams about this vulnerability to ensure rapid detection and response to potential exploitation attempts.