Fast Facts
- Multiple critical vulnerabilities in vm2 (CVEs with scores up to 10.0) enable sandbox escape, arbitrary code execution, and remote command execution via methods like "lookupGetter", "inspect", and prototype pollution.
- Attackers can exploit these flaws to access host system resources, run malicious code, or bypass security restrictions, severely compromising system integrity.
- Users are urged to update to version 3.11.2 immediately, as these vulnerabilities persist across several versions and pose a significant risk of remote exploitation.
Threat Overview, Attack Techniques, and Targets
A series of critical vulnerabilities have been found in the vm2 Node.js library. These flaws can allow attackers to break out of the sandbox and run malicious code on the host system. The vulnerabilities are identified by multiple CVEs, each with high severity scores ranging from 9.1 to 10.0.
Attackers can exploit these vulnerabilities by using specific methods, such as “__lookupGetter__”, “inspect”, “SuppressedError”, “BaseHandler.getPrototypeOf”, and others. These techniques enable them to escape the sandbox environment meant to isolate untrusted code. Once outside the sandbox, attackers can execute any command or run malicious scripts on the system.
The targets are systems running vulnerable versions of vm2. This library is used in environments where untrusted JavaScript code is executed securely. Attackers may leverage these flaws to gain control over servers, applications, or other infrastructure relying on vm2 for isolation.
Impact, Security Implications, and Remediation Guidance
The vulnerabilities pose a serious risk because they can lead to arbitrary code execution on affected systems. If exploited, attackers can escape the secure sandbox and access or control the underlying host environment. This impact includes the potential for installing malware, stealing data, and manipulating system operations.
Because of the high severity, organizations should prioritize patching. The affected versions are vulnerable until they are updated to the latest patched release. The recommended version to upgrade to is 3.11.2 for maximum protection.
If you are using an older version of vm2, update it immediately. If you need help, obtain detailed remediation guidance from the vendor or relevant security authority.
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