CVE-2021-39135
Summary
| CVE | CVE-2021-39135 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-08-31 17:15:00 UTC |
| Updated | 2023-11-07 03:37:00 UTC |
| Description | `@npmcli/arborist`, the library that calculates dependency trees and manages the node_modules folder hierarchy for the npm command line interface, aims to guarantee that package dependency contracts will be met, and the extraction of package contents will always be performed into the expected folder. This is accomplished by extracting package contents into a project's `node_modules` folder. If the `node_modules` folder of the root project or any of its dependencies is somehow replaced with a symbolic link, it could allow Arborist to write package dependencies to any arbitrary location on the file system. Note that symbolic links contained within package artifact contents are filtered out, so another means of creating a `node_modules` symbolic link would have to be employed. 1. A `preinstall` script could replace `node_modules` with a symlink. (This is prevented by using `--ignore-scripts`.) 2. An attacker could supply the target with a git repository, instructing them to run `npm install --ignore-scripts` in the root. This may be successful, because `npm install --ignore-scripts` is typically not capable of making changes outside of the project directory, so it may be deemed safe. This is patched in @npmcli/arborist 2.8.2 which is included in npm v7.20.7 and above. For more information including workarounds please see the referenced GHSA-gmw6-94gg-2rc2. |
Risk And Classification
Problem Types: CWE-61
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| @npmcli/arborist - npm | www.npmjs.com | ||
| Oracle Critical Patch Update Advisory - October 2021 | MISC | www.oracle.com | |
| cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf | CONFIRM | cert-portal.siemens.com | |
| UNIX Symbolic Link (Symlink) Following in @npmcli/arborist · Advisory · npm/arborist · GitHub | CONFIRM | github.com | |
| @npmcli/arborist - npm | MISC | www.npmjs.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 183402 Debian Security Update for npm (CVE-2021-39135)
- 296065 Oracle Solaris 11.4 Support Repository Update (SRU) 39.107.1 Missing (CPUOCT2021)
- 375828 Node.js Multiple Vulnerabilities (August 2021)
- 500445 Alpine Linux Security Update for nodejs
- 501454 Alpine Linux Security Update for nodejs
- 504208 Alpine Linux Security Update for nodejs
- 690030 Free Berkeley Software Distribution (FreeBSD) Security Update for node.js (7062bce0-1b17-11ec-9d9d-0022489ad614)
- 751457 OpenSUSE Security Update for nodejs12 (openSUSE-SU-2021:3940-1)
- 751475 OpenSUSE Security Update for nodejs14 (openSUSE-SU-2021:3964-1)
- 751509 OpenSUSE Security Update for nodejs12 (openSUSE-SU-2021:1574-1)
- 751518 OpenSUSE Security Update for nodejs14 (openSUSE-SU-2021:1552-1)
- 980371 Nodejs (npm) Security Update for @npmcli/arborist2 (GHSA-gmw6-94gg-2rc2)