Overview
The newly discovered vulnerability CVE-2024-54189 exposes a significant risk for users of Parallels Desktop for Mac version 20.1.1 (build 55740). This vulnerability lies within the Snapshot functionality of the software and has the potential to allow an attacker to escalate privileges, potentially leading to a full system compromise or data leakage. This risk is particularly pertinent for corporate environments relying on the virtualization capabilities of Parallels Desktop for Mac, as it could potentially provide an attacker with access to critical systems or sensitive data.
Vulnerability Summary
CVE ID: CVE-2024-54189
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
Share secrets securely
Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.
Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.
- • Encrypted identity
- • Private Spaces for organizations and teams
- • End-to-end encrypted chat, calls, files, and notes
- • Sensitive AI work and protected collaboration
- • Built for information that cannot leak
Our mission is to secure human work alongside AI.
Product | Affected Versions
Parallels Desktop for Mac | version 20.1.1 (build 55740)
How the Exploit Works
The exploit takes advantage of a privilege escalation vulnerability in the Snapshot functionality of Parallels Desktop for Mac. When a snapshot of a virtual machine is taken, a root service writes to a file owned by a regular user. An attacker, by creating a hard link to an arbitrary file, can trick the root service into writing to this other file, leading to potential privilege escalation. This means any user with low-level access could potentially gain high-level or root access to the system.
Conceptual Example Code
The following pseudocode demonstrates how the exploit could potentially be implemented:
# Create a hard link to a file you want to overwrite
ln /path/to/important/file /path/to/your/controlled/file
# Trigger the snapshot functionality
parallels --take-snapshot VM_ID
# The root service will now write to your controlled file, overwriting the important filePlease note that this is a conceptual example and may not work verbatim. The actual exploit would depend on various other factors, including the system’s configuration and the attacker’s privileges.
Mitigation Guidance
Users are strongly advised to apply the vendor-supplied patch to address this vulnerability. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. Regular monitoring and logging of system activity can also help in early detection and prevention of potential exploits.