vm2 is a sandbox that can run untrusted code with Nodes built-in modules. A sandbox escape vulnerability exists in vm2 for versions up to and including 3.9.17. It abuses an unexpected creation of a host object based on the specification of Proxy. As a result a threat actor can bypass the sandbox protections to gain remote code execution rights on the host running the sandbox. This vulnerability was patched in the release of version 3.9.18 of vm2. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Weakness
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Vm2 | Vm2_project | * | 3.9.18 (excluding) |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/10.html
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References
- https://gist.github.com/arkark/e9f5cf5782dec8321095be3e52acf5ac
- https://github.com/patriksimek/vm2/commit/d88105f99752305c5b8a77b63ddee3ec86912daf
- https://github.com/patriksimek/vm2/releases/tag/3.9.18
- https://github.com/patriksimek/vm2/security/advisories/GHSA-whpj-8f3w-67p5
- https://gist.github.com/arkark/e9f5cf5782dec8321095be3e52acf5ac
- https://github.com/patriksimek/vm2/commit/d88105f99752305c5b8a77b63ddee3ec86912daf
- https://github.com/patriksimek/vm2/releases/tag/3.9.18
- https://github.com/patriksimek/vm2/security/advisories/GHSA-whpj-8f3w-67p5