CVE-2021-31421 Explained : Impact and Mitigation
Discover the details of CVE-2021-31421, a vulnerability in Parallels Desktop 16.1.1-49141 that allows local attackers to delete arbitrary files. Learn about the impact, affected systems, and mitigation steps.
A vulnerability in Parallels Desktop 16.1.1-49141 allows local attackers to delete arbitrary files. This flaw exists in the Toolgate component due to improper validation of user-supplied paths.
Understanding CVE-2021-31421
This CVE details a security issue in Parallels Desktop version 16.1.1-49141 that could lead to file deletion by attackers with high privileges.
What is CVE-2021-31421?
CVE-2021-31421 is a vulnerability in Parallels Desktop that enables local attackers to delete files on affected systems by leveraging a flaw in the Toolgate component.
The Impact of CVE-2021-31421
The vulnerability poses a LOW severity risk. An attacker must execute high-privileged code on the target guest system to exploit this issue, potentially resulting in unauthorized file deletions.
Technical Details of CVE-2021-31421
This section provides in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises due to inadequate validation of user-supplied paths in Parallels Desktop 16.1.1-49141, allowing attackers to delete arbitrary files.
Affected Systems and Versions
Only affected installations running Parallels Desktop version 16.1.1-49141 are vulnerable to this exploit.
Exploitation Mechanism
Attackers with high privileges can exploit this vulnerability by executing code on the target guest system to delete files in the context of the hypervisor.
Mitigation and Prevention
Here are the necessary steps to address and prevent CVE-2021-31421.
Immediate Steps to Take
It is crucial to update Parallels Desktop to a secure version and restrict high-privileged code execution to prevent potential attacks.
Long-Term Security Practices
Enforcing proper file operation validation and maintaining up-to-date security measures can help mitigate similar vulnerabilities in the future.
Patching and Updates
Regularly installing security patches and updates from Parallels is essential to eliminate known vulnerabilities and enhance system security.