Description
Vasion Print (formerly PrinterLogic) Virtual Appliance Host prior to version 22.0.1049 and Application prior to version 20.0.2786 (VA and SaaS deployments) contain a private SSL key and matching public certificate stored in cleartext. The key belongs to the hostname `pl‑local.com` and is used by the appliance to terminate TLS connections on ports 80/443. Because the key is hardcoded, any attacker who can gain container-level access can simply read the files and obtain the private key. With the private key, the attacker can decrypt TLS traffic, perform man-in-the-middle attacks, or forge TLS certificates. This enables impersonation of the appliance’s web UI, interception of credentials, and unrestricted access to any services that trust the certificate. The same key is identical across all deployed appliances meaning a single theft compromises the confidentiality of every Vasion Print installation.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-31640
1. Vulnerability Assessment and Severity Evaluation
Vulnerability Description: The vulnerability in Vasion Print (formerly PrinterLogic) Virtual Appliance Host and Application involves the storage of a private SSL key and matching public certificate in cleartext. This key is hardcoded and identical across all deployed appliances, making it a critical security risk.
Severity Evaluation: The base score of 9.3 (CVSS:4.0) indicates a critical vulnerability. The scoring vector highlights several key factors:
- Attack Vector (AV:N): Network-based attack.
- Attack Complexity (AC:L): Low complexity.
- Privileges Required (PR:H): High privileges required (container-level access).
- User Interaction (UI:N): No user interaction needed.
- Confidentiality Impact (VC:H): High.
- Integrity Impact (VI:H): High.
- Availability Impact (VA:L): Low.
- Scope Change (SC:H): High.
- Impact on Confidentiality (SI:H): High.
- Impact on Integrity (SI:H): High.
- Impact on Availability (SA:H): High.
This vulnerability poses a significant risk to the confidentiality and integrity of the system, allowing attackers to decrypt TLS traffic, perform man-in-the-middle attacks, and forge TLS certificates.
2. Potential Attack Vectors and Exploitation Methods
Attack Vectors:
- Container-Level Access: An attacker who gains container-level access can read the cleartext private key and certificate.
- Network Interception: With the private key, an attacker can decrypt TLS traffic, intercept credentials, and perform man-in-the-middle attacks.
- Certificate Forgery: The attacker can forge TLS certificates, enabling impersonation of the appliance’s web UI and unrestricted access to services that trust the certificate.
Exploitation Methods:
- Direct Access: Gain access to the container hosting the Vasion Print appliance and read the private key.
- Network Sniffing: Use the private key to decrypt network traffic and capture sensitive information.
- Phishing and Social Engineering: Use forged certificates to create fake web UIs and capture user credentials.
3. Affected Systems and Software Versions
Affected Systems:
- Vasion Print Virtual Appliance Host versions prior to 22.0.1049.
- Vasion Print Application versions prior to 20.0.2786.
Deployment Types:
- Virtual Appliance (VA) deployments.
- Software as a Service (SaaS) deployments.
4. Recommended Mitigation Strategies
Immediate Actions:
- Update Software: Upgrade to Vasion Print Virtual Appliance Host version 22.0.1049 or later and Vasion Print Application version 20.0.2786 or later.
- Revoke Compromised Certificates: Immediately revoke the compromised SSL certificates and issue new ones.
- Monitor Network Traffic: Implement network monitoring to detect any unusual TLS traffic patterns.
Long-Term Strategies:
- Regular Audits: Conduct regular security audits to identify and mitigate similar vulnerabilities.
- Access Controls: Enhance access controls to prevent unauthorized access to critical components.
- Encryption Best Practices: Ensure that private keys and certificates are stored securely and not hardcoded.
5. Impact on European Cybersecurity Landscape
Regulatory Compliance: This vulnerability underscores the importance of compliance with European cybersecurity regulations, such as GDPR and NIS Directive, which emphasize data protection and incident response.
Industry-Wide Implications: The widespread use of Vasion Print in various industries means that a successful exploit could have far-reaching consequences, affecting multiple sectors including healthcare, finance, and government.
Public Trust: Compromised TLS certificates can erode public trust in digital services, highlighting the need for robust cybersecurity measures to protect sensitive information.
6. Technical Details for Security Professionals
Key Storage: The private SSL key and public certificate are stored in cleartext within the container. This practice violates best security practices, which recommend encrypting sensitive data and using secure storage mechanisms.
Hardcoded Keys: The use of hardcoded keys across all deployments means that a single key compromise affects all instances, making it a high-risk vulnerability.
Mitigation Steps:
- Key Management: Implement a robust key management system that ensures keys are unique, securely stored, and regularly rotated.
- Certificate Management: Use a certificate management solution to automate the issuance, renewal, and revocation of certificates.
- Intrusion Detection: Deploy intrusion detection systems (IDS) to monitor for unauthorized access attempts and anomalous behavior.
References:
By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risks associated with this critical flaw and enhance their overall cybersecurity posture.