CVE-2021-42714 : Exploit Details and Defense Strategies

Splashtop Remote Client (Business Edition) through 3.4.8.3 creates a Temporary File in a Directory with Insecure Permissions.

Understanding CVE-2021-42714

This CVE highlights a security vulnerability in Splashtop Remote Client (Business Edition) that allows the creation of temporary files with insecure permissions.

What is CVE-2021-42714?

The vulnerability in Splashtop Remote Client (Business Edition) enables the creation of temporary files in directories with inadequate permissions, posing a security risk.

The Impact of CVE-2021-42714

The insecure creation of temporary files can potentially lead to unauthorized access, data leakage, or manipulation by malicious entities, compromising system integrity and confidentiality.

Technical Details of CVE-2021-42714

This section delves into specific technical aspects of the CVE.

Vulnerability Description

Splashtop Remote Client (Business Edition) through version 3.4.8.3 is susceptible to this vulnerability due to improper permissions assigned to temporary files, which may be exploited by attackers.

Affected Systems and Versions

Product: Splashtop Remote Client (Business Edition)
Vendor: Splashtop
Versions affected: up to 3.4.8.3

Exploitation Mechanism

Attackers could exploit this vulnerability by manipulating the insecurely created temporary files to gain unauthorized access, escalate privileges, or execute arbitrary code on the affected system.

Mitigation and Prevention

Protect systems from CVE-2021-42714 by following these guidelines.

Immediate Steps to Take

Monitor and restrict access to sensitive directories where temporary files are created.
Implement file permission management to ensure files are created with appropriate access restrictions.
Regularly update the Splashtop Remote Client to the latest version to patch the vulnerability.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments to identify and address similar issues proactively.
Educate users on secure file handling practices to mitigate risks associated with file creation vulnerabilities.

Patching and Updates

Apply patches and updates provided by Splashtop promptly to eliminate the vulnerability and enhance system security.