CVE-2021-34084: S3 uploader OS Command Injection Vulnerability

HIGH
Advisory Identifier: GHSA-gwp3-f7mr-qpfv
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CWE-78
Published
Advisory Summary

CVE-2021-34084 is a HIGH os command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting S3 uploader libraries in the npm ecosystem. The issue involves os command injection in s3-uploader. Remediation is available in the latest vendor maintenance releases.

CVE-2021-34084 at a Glance

CVE Identifier CVE-2021-34084
GHSA Identifier GHSA-gwp3-f7mr-qpfv
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product S3 uploader
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2021-34084

To remediate this vulnerability, upgrade all affected S3 uploader dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

s3-uploader fixed: Latest secure release 
npm install s3-uploader@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls s3-uploader

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-34084, inspect your project dependencies using npm:

npm ls s3-uploader

Analyze the terminal output to locate any version of S3 uploader in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls s3-uploader command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection'), where the product constructs all or part of an os command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended os command when it is sent to a downstream component. In S3 uploader, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

OS command injection vulnerability in Turistforeningen node-s3-uploader through 2.0.3 for Node.js allows attackers to execute arbitrary commands via the metadata() function.

CVE-2021-34084 Affected S3 uploader Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
s3-uploader
npm/s3-uploader
npm
≤ 2.0.3

References

NVD — CVE-2021-34084 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34084
advisory.checkmarx.net/advisory/cx-2021-47... WEB
https://advisory.checkmarx.net/advisory/CX-2021-4776
S3 uploader Source Repository REPOSITORY
https://github.com/Turistforeningen/node-s3-uploader

Frequently Asked Questions

What is CVE-2021-34084?
CVE-2021-34084 is a security vulnerability in S3 uploader involving OS Command Injection in s3-uploader under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which S3 uploader versions are affected?
Affected versions include releases prior to current release patches across affected packages: s3-uploader.
What version fixes CVE-2021-34084?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is s3-uploader affected?
Yes, s3-uploader is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with CVE-2021-34084?
CVE-2021-34084 is classified under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') (The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.).
How can I check npm dependencies for CVE-2021-34084?
Run the dependency tree command: 'npm ls s3-uploader'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-gwp3-f7mr-qpfv",
  "modified" : "2022-06-03T22:21:32Z",
  "published" : "2022-06-03T00:00:59Z",
  "aliases" : [ "CVE-2021-34084" ],
  "summary" : "OS Command Injection in s3-uploader",
  "details" : "OS command injection vulnerability in Turistforeningen node-s3-uploader through 2.0.3 for Node.js allows attackers to execute arbitrary commands via the metadata() function.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "s3-uploader"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.0.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-34084"
  }, {
    "type" : "WEB",
    "url" : "https://advisory.checkmarx.net/advisory/CX-2021-4776"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Turistforeningen/node-s3-uploader"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-03T22:21:32Z",
    "nvd_published_at" : "2022-06-02T14:15:00Z"
  }
}