PT-2023-26569 · Npm · Import-In-The-Middle

Stephengroat-Dd

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Published

2023-08-07

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Updated

2023-08-11

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CVE-2023-38704

CVSS v3.1

8.1

High

VectorAV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:L
Name of the Vulnerable Software and Affected Versions import-in-the-middle versions prior to 1.4.2
Description The import-in-the-middle loader works by generating a wrapper module on the fly, using the module specifier to load the original module and add some wrapping code. This allows for remote code execution in cases where an application passes user-supplied input directly to the import() function.
Recommendations For versions prior to 1.4.2, update to version 1.4.2 to resolve the issue. As a temporary workaround, do not pass any user-supplied input to import(). Instead, verify it against a set of allowed values. If using import-in-the-middle and support for EcmaScript Modules is not needed, ensure that none of the following options are set: --loader=import-in-the-middle/hook.mjs or --loader import-in-the-middle/hook.mjs, either via command-line or the NODE OPTIONS environment variable.

Exploit

Fix

RCE

Weakness Enumeration

Related Identifiers

CVE-2023-38704
GHSA-5R27-RW8R-7967

Affected Products

Import-In-The-Middle