There exists a vulnerability in source code transformer (exception sanitization logic) of vm2 for versions up to 3.9.15, allowing attackers to bypass `handleException()` and leak unsanitized host exceptions which can be used to escape the sandbox and run arbitrary code in host context. 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 `3.9.16` of `vm2`.
The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.
Link | Tags |
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https://github.com/patriksimek/vm2/security/advisories/GHSA-xj72-wvfv-8985 | vendor advisory |
https://github.com/patriksimek/vm2/issues/516 | patch issue tracking |
https://github.com/patriksimek/vm2/commit/24c724daa7c09f003e556d7cd1c7a8381cb985d7 | patch |
https://gist.github.com/leesh3288/f05730165799bf56d70391f3d9ea187c | third party advisory exploit |
https://github.com/patriksimek/vm2/releases/tag/3.9.16 | release notes |