CVE-2021-35538 : Security Advisory and Response
Learn about CVE-2021-35538, a vulnerability in Oracle VM VirtualBox allowing attackers to compromise the system. Understand the impact, affected versions, and mitigation steps.
A vulnerability has been identified in the Oracle VM VirtualBox product of Oracle Virtualization, affecting versions prior to 6.1.28. This vulnerability allows a low-privileged attacker to compromise Oracle VM VirtualBox, potentially leading to a complete takeover.
Understanding CVE-2021-35538
This section provides insights into the nature and impact of the CVE-2021-35538 vulnerability.
What is CVE-2021-35538?
The vulnerability in Oracle VM VirtualBox allows a low-privileged attacker with access to the executing infrastructure to compromise the system, potentially resulting in a complete takeover. The affected versions are those prior to 6.1.28.
The Impact of CVE-2021-35538
Successful exploitation of this vulnerability can lead to the complete takeover of Oracle VM VirtualBox. It is important to note that this vulnerability does not apply to Windows systems. The CVSS 3.1 Base Score is 7.8, indicating high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2021-35538
This section delves into the technical aspects of the CVE-2021-35538 vulnerability.
Vulnerability Description
The vulnerability allows a low-privileged attacker to compromise Oracle VM VirtualBox, potentially resulting in a full takeover of the system.
Affected Systems and Versions
The affected product is VM VirtualBox by Oracle Corporation, with versions lower than 6.1.28 identified as vulnerable.
Exploitation Mechanism
An attacker with low privileges and access to the infrastructure running Oracle VM VirtualBox can exploit the vulnerability to compromise the system.
Mitigation and Prevention
In this section, we outline steps to mitigate the risks posed by CVE-2021-35538 and prevent potential exploitation.
Immediate Steps to Take
It is recommended to update Oracle VM VirtualBox to version 6.1.28 or later to mitigate the vulnerability. Ensure that only privileged users have access to the infrastructure running the software.
Long-Term Security Practices
Implement a robust access control policy to restrict unauthorized access to critical systems. Regular security training for users can also help prevent successful attacks.
Patching and Updates
Stay informed about security updates from Oracle Corporation and promptly apply patches to address known vulnerabilities.