CVE-2022-34889 : Exploit Details and Defense Strategies
Discover how the CVE-2022-34889 vulnerability in Parallels Desktop 17.1.1 (51537) enables local attackers to escalate privileges, impacting confidentiality, integrity, and availability. Learn about mitigation strategies and best security practices.
A vulnerability in Parallels Desktop 17.1.1 (51537) allows local attackers to escalate privileges by exploiting a flaw in the ACPI virtual device. This could lead to the execution of arbitrary code in the context of the hypervisor.
Understanding CVE-2022-34889
This CVE details a high-severity vulnerability in Parallels Desktop affecting version 17.1.1 (51537).
What is CVE-2022-34889?
The vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. Attackers need to execute high-privileged code on the target guest system to exploit this issue.
The Impact of CVE-2022-34889
The vulnerability has a CVSS base score of 8.2, indicating a high severity level. It can result in high impacts on confidentiality, integrity, and availability.
Technical Details of CVE-2022-34889
This section delves into the specifics of the vulnerability.
Vulnerability Description
The flaw arises from the lack of proper validation of user-supplied data within the ACPI virtual device, enabling attackers to read past the end of an allocated buffer.
Affected Systems and Versions
Parallels Desktop version 17.1.1 (build 51537) is the only version affected by this vulnerability.
Exploitation Mechanism
To exploit this vulnerability, attackers must first have the ability to execute high-privileged code on the target guest system, allowing them to escalate privileges and execute arbitrary code within the hypervisor context.
Mitigation and Prevention
Here are the recommended steps to mitigate the risk posed by CVE-2022-34889.
Immediate Steps to Take
- Update Parallels Desktop to the latest non-vulnerable version.
- Monitor for any suspicious activities on the system.
Long-Term Security Practices
- Regularly apply security patches and updates to all software.
- Implement the principle of least privilege to restrict unnecessary access.
Patching and Updates
Stay informed about security advisories from Parallels and apply patches promptly to secure your system.