CVE-2025-34207 is a vulnerability in Vasion Print (formerly PrinterLogic) Virtual Appliance Host and Application prior to versions 22.0.1049 and 20.0.2786 respectively. The vulnerability stems from insecure SSH client configurations within Docker instances, where the SSH client is set with options `UserKnownHostsFile=/dev/null`, `StrictHostKeyChecking=no`, and `ForwardAgent yes`. These settings disable verification of the remote host's SSH key and automatically forward the developer's SSH agent to any host matching configured wildcard patterns. This configuration flaw allows an attacker who gains access to a single compromised container to manipulate the container into connecting to a malicious SSH server. The attacker can then capture the forwarded private keys from the SSH agent, enabling them to move laterally across the environment without restriction. This vulnerability is classified under CWE-522 (Insufficiently Protected Credentials) and CWE-306 (Missing Authentication for Critical Function). It affects both Virtual Appliance (VA) and SaaS deployments of Vasion Print. The vulnerability requires no authentication or user interaction, making it easier to exploit remotely. The vendor has identified this issue as V-2024-027 — Insecure Secure Shell (SSH) Configuration. The CVSS 4.0 base score is 7.9, indicating a high severity with network attack vector, low attack complexity, no privileges or user interaction required, but with high scope impact due to the potential for lateral movement and credential compromise. No public exploits are known at this time, but the risk remains significant due to the nature of the misconfiguration and the criticality of SSH credentials in enterprise environments.

The impact of CVE-2025-34207 on European organizations can be severe. Exploitation allows attackers to capture forwarded SSH private keys from compromised containers, enabling unrestricted lateral movement within the network. This can lead to unauthorized access to sensitive systems and data, disruption of print services, and potential compromise of broader enterprise infrastructure. Organizations relying on Vasion Print Virtual Appliance Host for centralized print management are at risk of operational disruption and data breaches. The vulnerability's ease of exploitation without authentication or user interaction increases the likelihood of successful attacks. Additionally, the compromise of SSH credentials can facilitate further attacks such as privilege escalation and persistent access. For critical infrastructure sectors in Europe, including government, finance, healthcare, and manufacturing, this vulnerability poses a significant threat to confidentiality, integrity, and availability. The high scope impact means that a single compromised container can jeopardize the entire environment, amplifying the potential damage.

To mitigate CVE-2025-34207, European organizations should: 1) Immediately update Vasion Print Virtual Appliance Host to version 22.0.1049 or later and the Application to version 20.0.2786 or later once patches are available. 2) Until patches are applied, manually reconfigure SSH client settings within Docker containers to enforce strict host key verification by removing `UserKnownHostsFile=/dev/null` and setting `StrictHostKeyChecking=yes`. 3) Disable SSH agent forwarding (`ForwardAgent no`) unless absolutely necessary and restrict its use to trusted hosts only. 4) Implement network segmentation to limit container communication and reduce lateral movement opportunities. 5) Monitor SSH connections and logs for unusual activity, such as connections to unknown SSH servers or unexpected agent forwarding. 6) Employ multi-factor authentication and robust credential management to reduce the impact of compromised keys. 7) Conduct regular security audits of container configurations and access controls. 8) Educate developers and administrators about the risks of insecure SSH configurations and enforce secure coding and deployment practices.