vm2 NodeVM Remote Code Execution via Array-Shaped Require
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| patriksimek | vm2 | unaffected |
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| Patriksimek | Vm2 |
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| Source | ID | Title |
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Github GHSA |
GHSA-8hr7-r645-pc6w | vm2: NodeVM nesting guard accepts array-shaped require and permits host RCE |
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.636% probability within 30 days)
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| First Time appeared |
Patriksimek
Patriksimek vm2 |
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| Vendors & Products |
Patriksimek
Patriksimek vm2 |
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| Metrics |
ssvc
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| Description | vm2 is a sandbox for running untrusted Node.js code. In versions >= 3.11.4 and <= 3.11.6, the NodeVM constructor computes `hasRealRequireConfig` with `typeof requireOpts === 'object' && requireOpts !== null`, so an array-shaped `require` value (for example `require: []`) satisfies the guard that is meant to reject nesting without an explicit require configuration. `makeResolverFromLegacyOptions()` then destructures the array into undefined option fields and returns a resolver containing only `NESTING_OVERRIDE.vm2`. As a result, an attacker who can supply JavaScript executed by a NodeVM configured with truthy `nesting` and an array-shaped `require` (e.g. `new NodeVM({nesting: true, require: []})`) can require the host `vm2` module, create an inner NodeVM with an attacker-chosen builtin allowlist (such as `child_process`), and execute arbitrary commands with the privileges of the host Node.js process, escaping the sandbox. Outer builtin restrictions do not constrain the attacker-created inner NodeVM. This issue is fixed in vm2 3.11.7. | |
| Title | vm2 NodeVM Remote Code Execution via Array-Shaped Require | |
| Weaknesses | CWE-913 | |
| References |
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| Metrics |
cvssV3_1
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