CVE-2025-6796 in QConvergeConsole
Summary
by MITRE • 07/07/2025
Marvell QConvergeConsole getAppFileBytes Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Marvell QConvergeConsole. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the implementation of the getAppFileBytes 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 disclose information in the context of SYSTEM. Was ZDI-CAN-24916.
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Analysis
by VulDB Data Team • 08/06/2026
The Marvell QConvergeConsole directory traversal vulnerability represents a critical security flaw that enables remote attackers to access sensitive system information without requiring authentication credentials. This vulnerability specifically affects installations of the Marvell QConvergeConsole software and demonstrates a fundamental failure in input validation mechanisms within the application's file handling operations. The weakness resides in the getAppFileBytes method implementation where user-supplied paths are processed without adequate sanitization or validation checks. This directory traversal flaw allows malicious actors to manipulate file path parameters and access files outside of the intended directory structure, potentially exposing confidential system data.
The technical implementation of this vulnerability stems from insufficient input validation within the getAppFileBytes method which processes user-provided file path information. When the application receives a request containing a file path parameter, it fails to properly validate or sanitize this input before executing file operations. This lack of proper validation creates an opportunity for attackers to craft malicious path sequences that traverse directories beyond the intended scope. The vulnerability operates at the core level where file system access controls are bypassed through carefully constructed path traversal sequences, enabling unauthorized access to sensitive files and directories that should remain protected.
From an operational impact perspective, this vulnerability poses significant risks as it allows remote exploitation without authentication requirements, making it particularly dangerous for network-connected systems. Attackers can leverage this flaw to disclose information in the context of SYSTEM privileges, potentially gaining access to critical system files, configuration data, and other sensitive resources. The vulnerability essentially provides a backdoor mechanism for unauthorized information disclosure that could lead to further exploitation opportunities, including privilege escalation or additional attack vectors within the compromised system. The fact that no authentication is required significantly increases the attack surface and reduces the barrier to successful exploitation.
Security mitigations for this vulnerability should focus on implementing proper input validation and sanitization mechanisms within the getAppFileBytes method. Organizations should immediately apply vendor-provided patches or updates that address the directory traversal flaw through enhanced path validation and normalization techniques. The implementation of strict file path validation, including the removal of special characters and sequence checks, can prevent malicious path manipulation attempts. Additionally, enforcing principle of least privilege access controls and implementing proper file system permissions can limit the damage from potential exploitation attempts. Security monitoring should be enhanced to detect unusual file access patterns that might indicate exploitation attempts, while regular security assessments should verify that similar vulnerabilities do not exist in other methods or components of the application.
This vulnerability aligns with CWE-22 Directory Traversal and represents a classic example of insufficient input validation leading to information disclosure issues. The ATT&CK framework categorizes this as a technique involving credential access and privilege escalation through exploitation of software vulnerabilities. The lack of authentication requirements places this vulnerability in a particularly dangerous category where remote attackers can exploit the flaw from any network location without requiring prior access credentials, making it an attractive target for automated scanning and exploitation tools commonly used in cyber attacks. Organizations should prioritize immediate remediation efforts to address this vulnerability and strengthen their overall security posture against similar directory traversal threats.