There exists a vulnerability in exception sanitization of vm2 for versions up to 3.9.16, allowing attackers to raise an unsanitized host exception inside handleException() which can be used to escape the sandbox and run arbitrary code in host context.
Impact
A threat actor can bypass the sandbox protections to gain remote code execution rights on the host running the sandbox.
Patches
This vulnerability was patched in the release of version 3.9.17 of vm2.
Workarounds
None.
References
PoC - https://gist.github.com/leesh3288/381b230b04936dd4d74aaf90cc8bb244
For more information
If you have any questions or comments about this advisory:
Thanks to Xion (SeungHyun Lee) of KAIST Hacking Lab for disclosing this vulnerability.
There exists a vulnerability in exception sanitization of vm2 for versions up to 3.9.16, allowing attackers to raise an unsanitized host exception inside
handleException()which can be used to escape the sandbox and run arbitrary code in host context.Impact
A threat actor can bypass the sandbox protections to gain remote code execution rights on the host running the sandbox.
Patches
This vulnerability was patched in the release of version
3.9.17ofvm2.Workarounds
None.
References
PoC - https://gist.github.com/leesh3288/381b230b04936dd4d74aaf90cc8bb244
For more information
If you have any questions or comments about this advisory:
Thanks to Xion (SeungHyun Lee) of KAIST Hacking Lab for disclosing this vulnerability.