CVE-2024-3037 in PaperCut
Summary
by MITRE • 05/14/2024
An arbitrary file deletion vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web Print enabled. This vulnerability requires local login/console access to the PaperCut NG/MF server (eg: member of a domain admin group).
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Analysis
by VulDB Data Team • 01/28/2025
The vulnerability identified as CVE-2024-3037 represents a critical arbitrary file deletion flaw within PaperCut NG/MF software that specifically targets Windows server environments with Web Print functionality enabled. This vulnerability demonstrates a significant security weakness in the application's file handling mechanisms, where an attacker with sufficient privileges can manipulate the system to delete arbitrary files from the server's filesystem. The flaw is particularly concerning because it operates at a system level within the Windows environment, potentially allowing for extensive damage to critical system components, configuration files, or user data stored on the server.
The technical implementation of this vulnerability stems from insufficient input validation and access control mechanisms within the PaperCut NG/MF application's Web Print module. When the Web Print feature is enabled on Windows servers, the application fails to properly sanitize file paths or validate user permissions before executing file deletion operations. This weakness creates an attack surface where malicious actors can craft specific requests that bypass normal file access controls and directly invoke the file deletion functionality. The vulnerability requires local login or console access to the server, which aligns with common attack patterns where adversaries have already established a foothold within the target environment through credential compromise or privilege escalation techniques.
The operational impact of CVE-2024-3037 extends beyond simple file deletion capabilities, as it can potentially lead to complete system compromise or service disruption. An attacker with access to the PaperCut server could leverage this vulnerability to delete critical system files, configuration databases, or application binaries, effectively rendering the PaperCut service inoperable or allowing for further exploitation of the compromised system. The requirement for local access or console login means that this vulnerability typically represents a post-exploitation vector rather than an initial entry point, but it significantly amplifies the damage potential for attackers who have already gained administrative privileges on the server. This vulnerability directly maps to CWE-22 - Improper Limitation of a Pathname to a Restricted Directory and CWE-772 - Missing Release of Resource after Effective Lifetime, as it allows for unauthorized file manipulation beyond intended system boundaries.
The attack scenario for this vulnerability typically begins with an adversary already possessing local administrative access to the PaperCut NG/MF server, often achieved through prior credential compromise, privilege escalation, or other initial attack vectors. Once established, the attacker can utilize the Web Print functionality to execute malicious file deletion commands against system files, application directories, or user data repositories. This vulnerability also aligns with ATT&CK technique T1485 - Data Destruction, where adversaries specifically target the deletion of files to cause system disruption or data loss. The impact is particularly severe in enterprise environments where PaperCut serves as a critical print management solution, as the deletion of core application files could result in complete service outages or require extensive system recovery procedures.
Organizations should implement immediate mitigations including restricting local administrative access to PaperCut servers, disabling Web Print functionality when not required, and implementing robust monitoring for unusual file deletion activities. System administrators should also ensure that the PaperCut application is regularly updated with the latest security patches from the vendor, as this vulnerability represents a known flaw that has likely been addressed in recent releases. Network segmentation and least privilege access controls can help limit the potential impact of such vulnerabilities by preventing lateral movement within the network and reducing the number of systems that can be directly compromised through this attack vector. Additionally, implementing comprehensive backup strategies and regular system audits will help organizations recover quickly from potential exploitation of this vulnerability while maintaining operational continuity.