CVE-2020-7861 Explained : Impact and Mitigation

AnySupport directory traversing vulnerability

Understanding CVE-2020-7861

AnySupport (Remote support solution) before 2019.3.21.0 allows directory traversing, potentially leading to arbitrary file execution.

What is CVE-2020-7861?

The vulnerability in AnySupport allows an attacker to perform directory traversal due to a flaw in the swprintf function, enabling the copying of files from a management PC to a client PC.

The Impact of CVE-2020-7861

The vulnerability has a CVSS base score of 8.4, indicating a high severity issue with significant impacts on confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2020-7861

AnySupport directory traversing vulnerability technical details

Vulnerability Description

Vulnerability Type: CWE-23 Relative Path Traversal
Attack Vector: ADJACENT_NETWORK
Attack Complexity: LOW
Privileges Required: LOW
User Interaction: REQUIRED
Scope: CHANGED

Affected Systems and Versions

Affected Platform: Windows
Affected Product: AquaNPlayer
Vulnerable Version: 2019.3.21.0

Exploitation Mechanism

The vulnerability allows an attacker to manipulate file paths, potentially leading to the execution of arbitrary files on the target system.

Mitigation and Prevention

Mitigation steps for CVE-2020-7861

Immediate Steps to Take

Apply the vendor-supplied patch or update to version 2019.3.21.0 or higher.
Monitor network traffic for any suspicious activities.
Restrict access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate weaknesses.
Educate users on safe computing practices and the importance of cybersecurity.

Patching and Updates

Ensure timely installation of security patches and updates provided by the vendor.
Implement a robust patch management process to address vulnerabilities promptly.