CVE-2025-8426: Marvell QConvergeConsole Path Traversal

CVE-2025-8426 Overview

CVE-2025-8426 is a critical directory traversal vulnerability affecting Marvell QConvergeConsole. This vulnerability allows remote attackers to disclose sensitive information or create a denial-of-service condition on affected installations without requiring authentication.

The specific flaw exists within the implementation of the compressConfigFiles 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 access sensitive files outside of intended directories or disrupt service availability on vulnerable systems.

Critical Impact

Unauthenticated remote attackers can exploit this directory traversal flaw to read sensitive system files or cause denial-of-service conditions on Marvell QConvergeConsole installations.

Affected Products

• Marvell QConvergeConsole version 5.5.0.85
• Marvell QConvergeConsole (additional affected versions may exist)

Discovery Timeline

• 2025-07-31 - CVE-2025-8426 published to NVD
• 2025-08-06 - Last updated in NVD database

Technical Details for CVE-2025-8426

Vulnerability Analysis

This directory traversal vulnerability (CWE-22) exists in the compressConfigFiles method of Marvell QConvergeConsole. The vulnerability allows unauthenticated remote attackers to manipulate file paths to access files and directories outside of the intended scope. The lack of authentication requirements significantly increases the exploitability of this flaw, as any network-accessible attacker can attempt exploitation.

The vulnerability enables both information disclosure and denial-of-service attack scenarios. Attackers can traverse directories to read sensitive configuration files, credentials, or other system data. Additionally, by targeting critical files or resources, attackers can disrupt the normal operation of the affected system.

Root Cause

The root cause of CVE-2025-8426 is the insufficient validation of user-supplied path inputs in the compressConfigFiles method. The application fails to properly sanitize or validate path parameters before using them in file system operations, allowing attackers to use directory traversal sequences (such as ../) to escape the intended directory context and access arbitrary files on the system.

Attack Vector

The attack vector for this vulnerability is network-based and does not require any form of authentication. An attacker with network access to a vulnerable Marvell QConvergeConsole installation can craft malicious requests to the compressConfigFiles method containing directory traversal sequences. By manipulating the path parameter, the attacker can:

1. Information Disclosure: Read sensitive files outside the intended directory, potentially exposing configuration data, credentials, or other sensitive information
2. Denial of Service: Target critical system files or resources to disrupt service availability

The vulnerability is tracked by the Zero Day Initiative as ZDI-CAN-24915. For technical details, refer to the Zero Day Initiative Advisory ZDI-25-733.

Detection Methods for CVE-2025-8426

Indicators of Compromise

• Unusual HTTP requests to QConvergeConsole containing directory traversal patterns such as ../, ..\, or encoded variants
• Unexpected file access attempts in system logs originating from the QConvergeConsole application
• Anomalous network traffic targeting QConvergeConsole management interfaces
• Evidence of configuration file enumeration or extraction attempts

Detection Strategies

• Monitor web server and application logs for requests containing path traversal sequences targeting the compressConfigFiles endpoint
• Implement network-based intrusion detection rules to identify directory traversal attack patterns in traffic to QConvergeConsole services
• Deploy endpoint detection solutions capable of identifying unauthorized file access attempts by the QConvergeConsole process
• Review file access audit logs for suspicious read operations on sensitive system files

Monitoring Recommendations

• Enable detailed logging for all QConvergeConsole web service requests and file operations
• Configure alerting for requests containing suspicious path manipulation characters or sequences
• Monitor for unusual outbound data transfers that may indicate successful data exfiltration
• Implement file integrity monitoring on critical system directories

How to Mitigate CVE-2025-8426

Immediate Actions Required

• Restrict network access to Marvell QConvergeConsole management interfaces to trusted IP addresses only
• Implement network segmentation to isolate systems running QConvergeConsole from untrusted networks
• Apply any available security patches from Marvell as soon as they become available
• Review access logs for evidence of exploitation attempts

Patch Information

Consult the Zero Day Initiative Advisory ZDI-25-733 for the latest information on available patches and vendor guidance. Monitor Marvell's official security advisories for patch releases addressing CVE-2025-8426.

Workarounds

• Implement firewall rules to restrict access to QConvergeConsole services to authorized administrative networks only
• Deploy a web application firewall (WAF) configured to block directory traversal attack patterns
• Consider temporarily disabling the QConvergeConsole web interface if it is not essential for operations
• Use network access control lists (ACLs) to limit which systems can communicate with vulnerable installations

# Example firewall rule to restrict access to QConvergeConsole (adjust port as needed)
iptables -A INPUT -p tcp --dport 8080 -s 10.0.0.0/8 -j ACCEPT
iptables -A INPUT -p tcp --dport 8080 -j DROP