Description (CNA)
vm2 3.11.3 through 3.11.6 exposes the host Node.js crypto module to a NodeVM sandbox when the crypto builtin is allowed. The module is presented via a recursive read-only proxy, but its callable exports still execute with host-process authority. Sandboxed JavaScript can therefore call crypto.setEngine() with a filesystem path to an attacker-supplied native library (for example, one bundled in an untrusted plugin package already written to disk); OpenSSL asks the operating-system dynamic loader to load the file, and the library's constructor executes native code in the host process before engine-symbol validation rejects it. Exploitation requires only the crypto builtin and does not require fs, process, module, child_process, worker_threads, vm, or inspector access, resulting in a sandbox escape and arbitrary native code execution. Fixed in 3.11.7.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| patriksimek / vm2 | affected 3.11.3 before 3.11.7; unaffected 3.11.7 |
CWE
CWE-114
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-46pr-c5wc-xffx
- https://www.vulncheck.com/advisories/vm2-3.11.3-through-3.11.6-native-code-execution-via-crypto-setengine
ADP enrichment
No English description supplied.