CVE-2025-6806 in QConvergeConsole
Summary
by MITRE • 07/07/2025
Marvell QConvergeConsole decryptFile Directory Traversal Arbitrary File Write Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of Marvell QConvergeConsole. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of the decryptFile method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to write files in the context of SYSTEM. Was ZDI-CAN-24979.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 08/06/2026
The Marvell QConvergeConsole decryptFile directory traversal arbitrary file write vulnerability represents a critical security flaw that enables remote attackers to execute unauthorized file operations without authentication requirements. This vulnerability specifically targets the decryptFile method implementation within the Marvell QConvergeConsole software, which serves as a management console for Marvell networking equipment and devices. The weakness stems from insufficient input validation mechanisms that fail to properly sanitize user-supplied paths before processing them in file system operations.
The technical nature of this vulnerability aligns with CWE-22, known as "Improper Limitation of a Pathname to a Restricted Directory," which occurs when applications fail to validate or sanitize file paths provided by external sources. Attackers can exploit this flaw by crafting malicious input that includes directory traversal sequences such as ../ or ..\ that bypass normal path validation checks. When the decryptFile method processes these unvalidated paths, it allows arbitrary file creation operations to occur in any location within the system's file hierarchy where the application has write permissions, potentially enabling attackers to place malicious files anywhere on the target system.
The operational impact of this vulnerability is severe as it permits remote code execution and persistent system compromise without requiring authentication credentials. Since the attack can be launched remotely without prior access to the system, threat actors can exploit this weakness from any network location to create arbitrary files in the context of SYSTEM privileges, which represents the highest level of system permissions. This capability allows attackers to deploy malicious payloads, modify critical system files, or establish backdoors that persist across system reboots, making the vulnerability particularly dangerous for network infrastructure devices that typically operate with elevated privileges.
The security implications extend beyond simple file creation to encompass complete system compromise and persistent access capabilities. An attacker exploiting this vulnerability could leverage the SYSTEM context to install rootkits, modify system binaries, or create unauthorized user accounts within the Marvell QConvergeConsole environment. This arbitrary file write capability also enables attackers to perform lateral movement within network infrastructures where these devices operate, potentially compromising entire networks through strategic file placement attacks.
Organizations should implement immediate mitigations including patching affected systems with vendor-provided security updates, implementing network segmentation to limit access to Marvell QConvergeConsole services, and deploying intrusion detection systems to monitor for suspicious file creation patterns. Network administrators should also consider disabling unnecessary services and implementing strict access controls around management interfaces. The vulnerability demonstrates the importance of input validation in security-critical applications and highlights how insufficient path validation can lead to complete system compromise, aligning with ATT&CK technique T1059 for command and scripting interpreter usage and T1486 for data encryption for impact. Organizations should also conduct thorough vulnerability assessments to identify similar path traversal issues in other network management tools and implement comprehensive security monitoring to detect exploitation attempts involving arbitrary file write capabilities.