CVE-2025-27674: Vasion Print Hardcoded Key Vulnerability

CVE-2025-27674 Overview

CVE-2025-27674 is a critical hardcoded credentials vulnerability affecting Vasion Print (formerly PrinterLogic) Virtual Appliance Host and Application software. The vulnerability involves a hardcoded Identity Provider (IdP) key that could allow attackers to compromise authentication mechanisms, potentially leading to unauthorized access and complete system compromise.

Critical Impact

The presence of a hardcoded IdP key enables attackers to bypass authentication mechanisms, potentially gaining unauthorized administrative access to print management infrastructure across enterprise environments.

Affected Products

• Vasion Print (PrinterLogic) Virtual Appliance Host versions before 22.0.843
• Vasion Print Application versions before 20.0.1923
• PrinterLogic Virtual Appliance deployments using vulnerable configurations

Discovery Timeline

• 2025-03-05 - CVE-2025-27674 published to NVD
• 2025-11-03 - Last updated in NVD database

Technical Details for CVE-2025-27674

Vulnerability Analysis

This vulnerability (tracked as V-2023-006 by the vendor) stems from the use of a hardcoded Identity Provider (IdP) key within the Vasion Print application. Hardcoded cryptographic keys represent a severe security weakness as they cannot be rotated without software updates and are identical across all installations, making them valuable targets for attackers. Once discovered, the key can be extracted and used to forge authentication tokens, impersonate legitimate users, or bypass security controls entirely.

The vulnerability is classified under CWE-321 (Use of Hard-coded Cryptographic Key), which indicates that the application embeds a cryptographic key directly in the source code or binary rather than generating or retrieving it securely at runtime. This design flaw enables network-based attacks that require no privileges or user interaction to exploit.

Root Cause

The root cause of CVE-2025-27674 is the embedding of a static Identity Provider (IdP) cryptographic key directly within the Vasion Print application codebase. This hardcoded key is used for authentication operations, meaning all deployed instances of the vulnerable software versions share the same key material. This architectural decision violates fundamental cryptographic security principles that mandate unique, securely generated keys for each deployment. The key can be extracted through reverse engineering or binary analysis of the application.

Attack Vector

The attack vector for this vulnerability is network-based with low complexity requirements. An attacker with network access to a vulnerable Vasion Print deployment can exploit the hardcoded IdP key without requiring any privileges or user interaction. The exploitation flow involves:

1. Obtaining the hardcoded IdP key through reverse engineering of the application binary or through published security research
2. Using the extracted key to forge valid authentication tokens or sign malicious assertions
3. Presenting forged credentials to gain unauthorized access to the print management system
4. Escalating access to administrative functions, potentially compromising connected print infrastructure

Detailed technical analysis of this vulnerability and related issues can be found in the Pierre Kim Blog on PrinterLogic Vulnerabilities.

Detection Methods for CVE-2025-27674

Indicators of Compromise

• Unusual authentication events from unexpected source IP addresses against Vasion Print/PrinterLogic systems
• Authentication logs showing successful logins without corresponding legitimate user activity
• Anomalous administrative actions on print management infrastructure
• Evidence of token manipulation or replay attacks in application logs

Detection Strategies

• Monitor authentication logs for unusual patterns including successful logins from unfamiliar geographic locations or IP ranges
• Implement network traffic analysis to detect potential exploitation attempts targeting the IdP authentication flow
• Deploy file integrity monitoring on Vasion Print application binaries to detect tampering
• Configure SIEM rules to alert on administrative actions occurring outside normal business hours or from unexpected sources

Monitoring Recommendations

• Enable verbose logging on Vasion Print/PrinterLogic systems to capture detailed authentication events
• Implement network segmentation monitoring to detect lateral movement from compromised print infrastructure
• Establish baseline behavioral profiles for administrative access patterns and alert on deviations
• Review access logs regularly for signs of unauthorized access using the compromised IdP key

How to Mitigate CVE-2025-27674

Immediate Actions Required

• Update Vasion Print Virtual Appliance Host to version 22.0.843 or later immediately
• Update Vasion Print Application to version 20.0.1923 or later
• Audit authentication logs for any signs of historical exploitation
• Review and validate all administrative accounts and their recent activity

Patch Information

Vasion (PrinterLogic) has released patched versions that address this hardcoded IdP key vulnerability. Organizations should upgrade to Virtual Appliance Host version 22.0.843 or later and Application version 20.0.1923 or later. Refer to the PrinterLogic Security Bulletins for official patch information and download links. The vulnerability is tracked internally by the vendor as V-2023-006.

Workarounds

• Implement network segmentation to restrict access to Vasion Print/PrinterLogic systems to only authorized administrative networks
• Deploy additional authentication layers such as multi-factor authentication (MFA) in front of the print management system where possible
• Monitor and limit network exposure of the vulnerable application using firewall rules and access control lists
• Consider temporarily isolating vulnerable systems until patches can be applied

# Example: Network segmentation using iptables to restrict access to PrinterLogic
# Replace TRUSTED_ADMIN_NETWORK with your authorized management subnet
iptables -A INPUT -p tcp --dport 443 -s TRUSTED_ADMIN_NETWORK -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP