CVE-2025-27646: Vasion Print Information Disclosure Flaw

CVE-2025-27646 Overview

CVE-2025-27646 is a critical Improper Access Control vulnerability affecting Vasion Print (formerly PrinterLogic) Virtual Appliance Host and Application components. The vulnerability, tracked as V-2024-001, allows unauthorized Edit User Account Exposure, potentially enabling attackers to modify user account information without proper authorization. This flaw exists in versions prior to Virtual Appliance Host 22.0.913 and Application 20.0.2253.

Critical Impact

This vulnerability enables unauthorized modification of user accounts in enterprise print management infrastructure, potentially allowing attackers to escalate privileges, compromise administrative accounts, or disrupt print services across an organization.

Affected Products

• Vasion Print (formerly PrinterLogic) Virtual Appliance Host versions before 22.0.913
• Vasion Print Application versions before 20.0.2253
• PrinterLogic Virtual Appliance (legacy naming)

Discovery Timeline

• 2025-03-05 - CVE-2025-27646 published to NVD
• 2025-11-03 - Last updated in NVD database

Technical Details for CVE-2025-27646

Vulnerability Analysis

This vulnerability is classified under CWE-284 (Improper Access Control), indicating that the affected Vasion Print software fails to properly restrict access to user account modification functionality. The flaw allows network-based attackers to access and potentially modify user account information without requiring authentication or user interaction.

The vulnerability is particularly concerning in enterprise environments where PrinterLogic/Vasion Print is deployed to manage print infrastructure across multiple locations. Successful exploitation could allow an attacker to modify user accounts, potentially including administrative accounts, leading to complete compromise of the print management system.

Root Cause

The root cause of CVE-2025-27646 lies in improper access control mechanisms within the user account management functionality of Vasion Print. The application fails to adequately verify that requests to edit user accounts originate from authorized users with appropriate permissions. This missing or insufficient authorization check allows unauthenticated attackers to access functionality that should be restricted to administrators.

Attack Vector

The vulnerability is exploitable over the network without requiring authentication or user interaction. An attacker with network access to the Vasion Print management interface can craft requests to the user account editing functionality. Due to the improper access control, these requests may be processed without proper authorization checks, allowing the attacker to view or modify user account information.

The attack does not require any privileges or special conditions, making it accessible to any attacker who can reach the vulnerable service over the network. This includes scenarios where the management interface is exposed to the internet or accessible from a compromised internal network position.

Detection Methods for CVE-2025-27646

Indicators of Compromise

• Unexpected modifications to user accounts in Vasion Print/PrinterLogic management console
• Unusual API requests to user account management endpoints from unexpected source IPs
• Authentication log entries showing account changes without corresponding administrator sessions
• New or modified administrative accounts that were not created through normal processes

Detection Strategies

• Monitor Vasion Print application logs for unauthorized access attempts to user management functions
• Implement network monitoring to detect anomalous traffic patterns to the PrinterLogic management interface
• Deploy web application firewalls (WAF) with rules to detect unauthorized access control bypass attempts
• Utilize SentinelOne Singularity platform to detect suspicious process behavior associated with compromised print infrastructure

Monitoring Recommendations

• Enable comprehensive audit logging on Vasion Print servers for all user account modifications
• Configure alerts for any user account changes occurring outside of maintenance windows
• Monitor network traffic to and from PrinterLogic appliances for unusual patterns or volumes
• Implement baseline behavioral monitoring on systems hosting Vasion Print to detect post-exploitation activity

How to Mitigate CVE-2025-27646

Immediate Actions Required

• Upgrade Vasion Print Virtual Appliance Host to version 22.0.913 or later immediately
• Upgrade Vasion Print Application to version 20.0.2253 or later
• Restrict network access to the Vasion Print management interface to authorized administrator IP ranges only
• Review all user accounts for unauthorized modifications and reset credentials for any suspicious accounts

Patch Information

Vasion (formerly PrinterLogic) has released security updates addressing this vulnerability. Organizations should upgrade to Virtual Appliance Host version 22.0.913 or later and Application version 20.0.2253 or later. Detailed patch information and security bulletins are available from the PrinterLogic Security Bulletins page. Additional technical details about this and related vulnerabilities can be found in the security research blog post.

Workarounds

• Place the Vasion Print management interface behind a VPN or network segmentation to limit exposure
• Implement additional network-level access controls to restrict which systems can communicate with the management interface
• Deploy a web application firewall in front of the Vasion Print application with strict access control rules
• Monitor and audit all user account changes manually until patching can be completed

# Network isolation example - restrict management interface access
# Add firewall rules to limit access to PrinterLogic management ports
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP

# Verify current Vasion Print version
cat /opt/printerlogic/version.txt