Overview
The CVE-2025-34198 vulnerability is a critical exploit found in Vasion Print’s Virtual Appliance Host and Application, formerly known as PrinterLogic. The vulnerability stems from the presence of shared, hardcoded SSH host private keys in the appliance image. These keys are not unique to each installation, but instead are the same across all deployments, which leaves the system open for potential compromise.
This vulnerability is significant as it affects any organization or individual using Vasion Print’s Virtual Appliance Host versions prior to 22.0.951 and Application prior to 20.0.2368. The implications of this vulnerability are severe, as an attacker could potentially decrypt or intercept SSH connections to appliances using the same keys, leading to potential system compromises and data leakage.
Vulnerability Summary
CVE ID: CVE-2025-34198
Severity: Critical (9.8)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise, data leakage
Affected Products
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Product | Affected Versions
Vasion Print Virtual Appliance Host | Versions prior to 22.0.951
Vasion Print Application | Versions prior to 20.0.2368
How the Exploit Works
The exploit takes advantage of the shared, hardcoded SSH host private keys present in the appliance image of the affected Vasion Print products. An attacker who gains access to these keys, either by compromising an appliance image or from another installation, can use them to impersonate the appliance. This would allow the attacker to decrypt or intercept SSH connections to appliances using the same keys. Furthermore, they could potentially perform man-in-the-middle or impersonation attacks against administrative SSH sessions, leading to unauthorized access and potential system compromise.
Conceptual Example Code
While there isn’t a specific “malicious payload” for this type of vulnerability, an attack might follow a pattern like this:
1. Attacker gains access to an appliance image or another installation and retrieves the shared, hardcoded SSH host private keys.
2. Attacker uses these keys to impersonate the appliance and sets up a false SSH server.
3. When an administrator attempts to connect to the real appliance via SSH, they are instead connected to the false server set up by the attacker.
4. The attacker now has access to the administrator’s credentials and any data sent during the session.
ssh -i retrieved_key.pem admin@fake-appliance-setup-by-attacker.com