Description
VMware Workstation and Fusion contain a use-after-free vulnerability in the vbluetooth device. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2024-19831
1. Vulnerability Assessment and Severity Evaluation
The vulnerability EUVD-2024-19831, also known as CVE-2024-22267, is a use-after-free flaw in the vbluetooth device of VMware Workstation and Fusion. This vulnerability allows a malicious actor with local administrative privileges on a virtual machine to execute code as the virtual machine's VMX process running on the host. The CVSS (Common Vulnerability Scoring System) base score of 9.3 indicates a critical severity level. The scoring vector (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) highlights the following characteristics:
- Attack Vector (AV): Local - The vulnerability can be exploited from within the local network.
- Attack Complexity (AC): Low - The attack requires minimal skill or resources.
- Privileges Required (PR): None - No special privileges are required to exploit the vulnerability.
- User Interaction (UI): None - No user interaction is required for the attack to succeed.
- Scope (S): Changed - The vulnerability affects a component that is outside the security scope of the affected component.
- Confidentiality (C), Integrity (I), Availability (A): High - The vulnerability has a high impact on confidentiality, integrity, and availability.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves a malicious actor gaining local administrative privileges on a virtual machine. Once this access is obtained, the actor can exploit the use-after-free vulnerability in the vbluetooth device to execute arbitrary code as the VMX process on the host system. This can lead to:
- Privilege Escalation: The attacker can elevate privileges from the virtual machine to the host system.
- Code Execution: The attacker can execute malicious code on the host system, potentially compromising other virtual machines and the host itself.
- Data Exfiltration: The attacker can access and exfiltrate sensitive data from the host system.
3. Affected Systems and Software Versions
The vulnerability affects the following versions of VMware products:
- VMware Fusion: Versions 13.x prior to 13.5.2
- VMware Workstation: Versions 17.x prior to 17.5.2
Users of these versions are at risk and should prioritize updating to the patched versions.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following actions are recommended:
- Update Software: Immediately update to the patched versions of VMware Fusion (13.5.2 or later) and VMware Workstation (17.5.2 or later).
- Restrict Administrative Access: Limit administrative privileges on virtual machines to trusted users only.
- Monitor and Log: Implement robust monitoring and logging mechanisms to detect any suspicious activities on virtual machines and the host system.
- Network Segmentation: Use network segmentation to isolate virtual machines and limit the potential impact of an attack.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant risk to organizations and individuals using VMware Workstation and Fusion within the European Union. Given the critical nature of the vulnerability, it could be exploited to compromise sensitive data, disrupt operations, and potentially lead to data breaches. This underscores the importance of timely patching and adherence to best security practices to protect against such threats.
6. Technical Details for Security Professionals
Vulnerability Type: Use-after-free
Affected Component: vbluetooth device in VMware Workstation and Fusion
Exploitation Requirements:
- Local administrative privileges on the virtual machine
- No user interaction required
Potential Impact:
- Execution of arbitrary code on the host system
- Compromise of host and other virtual machines
- Data exfiltration and integrity compromise
Detection and Response:
- Detection: Use intrusion detection systems (IDS) and endpoint detection and response (EDR) tools to monitor for unusual activities related to the vbluetooth device.
- Response: In case of a suspected exploitation, isolate the affected virtual machine and host, conduct a thorough investigation, and apply necessary patches and updates.
References:
By addressing this vulnerability promptly and implementing robust security measures, organizations can significantly reduce the risk of exploitation and protect their digital assets.