Headline
GHSA-5r27-rw8r-7967: Unsanitized user controlled input in module generation
Impact
The import-in-the-middle loader works by generating a wrapper module on the fly. The wrapper uses the module specifier to load the original module and add some wrapping code. It allows for remote code execution in cases where an application passes user-supplied input directly to an import() function.
Patches
This vulnerability has been patched in import-in-the-middle version 1.4.2
Workarounds
- Do not pass any user-supplied input to
import(). Instead, verify it against a set of allowed values. - If using
import-in-the-middleand support for EcmaScript Modules is not needed, ensure that none of the following options are set (either via command-line or theNODE_OPTIONSenvironment variable):
--loader=import-in-the-middle/hook.mjs
--loader import-in-the-middle/hook.mjs
References
If you have any questions or comments about this advisory, email us at [email protected]
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2023-38704
Unsanitized user controlled input in module generation
Package
npm import-in-the-middle (npm)
Affected versions
<= 1.4.1
Impact
The import-in-the-middle loader works by generating a wrapper module on the fly. The wrapper uses the module specifier to load the original module and add some wrapping code. It allows for remote code execution in cases where an application passes user-supplied input directly to an import() function.
Patches
This vulnerability has been patched in import-in-the-middle version 1.4.2
Workarounds
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 (either via command-line or the NODE_OPTIONS environment variable):
–loader=import-in-the-middle/hook.mjs –loader import-in-the-middle/hook.mjs
References
If you have any questions or comments about this advisory, email us at [email protected]
References
- GHSA-5r27-rw8r-7967
- https://nvd.nist.gov/vuln/detail/CVE-2023-38704
- DataDog/import-in-the-middle@2531cdd
Published to the GitHub Advisory Database
Aug 8, 2023
Related news
`import-in-the-middle` is a module loading interceptor specifically for ESM modules. Prior to version 1.4.2, the `import-in-the-middle` loader works by generating a wrapper module on the fly. The wrapper uses the module specifier to load the original module and add some wrapping code. It allows for remote code execution in cases where an application passes user-supplied input directly to an `import()` function. This vulnerability has been patched in `import-in-the-middle` version 1.4.2. Some workarounds are available. 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 certain options are set, either via command-line or the `NODE_OPTIONS` environment variable.