CVE-2020-17387 : Vulnerability Insights and Analysis

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Marvell QConvergeConsole 5.5.0.64. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the writeObjectToConfigFile method of the GWTTestServiceImpl class. 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 execute code in the context of SYSTEM. Was ZDI-CAN-10565.

Understanding CVE-2020-17387

This CVE pertains to a vulnerability in Marvell QConvergeConsole 5.5.0.64 that allows remote code execution.

What is CVE-2020-17387?

CVE-2020-17387 is a security vulnerability that enables remote attackers to run arbitrary code on affected systems.

The Impact of CVE-2020-17387

The vulnerability has a CVSS base score of 8.8, indicating a high severity level with significant impacts on confidentiality, integrity, and availability of the system.

Technical Details of CVE-2020-17387

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The flaw exists in the writeObjectToConfigFile method of the GWTTestServiceImpl class due to inadequate validation of user-supplied paths, allowing attackers to execute code.

Affected Systems and Versions

Product: QConvergeConsole
Vendor: Marvell
Version: 5.5.0.64

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Mitigation and Prevention

Protecting systems from CVE-2020-17387 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches promptly.
Monitor network traffic for signs of exploitation.
Restrict network access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software and systems.
Implement strong authentication mechanisms.
Conduct security audits and penetration testing.

Patching and Updates

Refer to the vendor's security advisory for patching instructions and updates.