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Advisories

vm2 before 3.11.6 Process-wide State Exposure via os and dns

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severity
critical
date
Affecting

  • vm2 >= 0, < 3.11.6

CWE
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CVSS
10.0
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L
Credit
offset
Description
vm2 before 3.11.6 fails to restrict access to os and dns builtins under the builtin: ['*'] configuration, allowing sandbox code to read host process identity and network topology. Attackers can invoke dns.setServers() to hijack the host process DNS resolver globally, redirecting all subsequent host DNS queries through an attacker-controlled resolver.

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