CVE-2021-34082: Proctree OS Command Injection Vulnerability

HIGH
Advisory Identifier: GHSA-cv76-rv4h-4mqc
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CWE-78
Published
Advisory Summary

CVE-2021-34082 is a HIGH os command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Proctree libraries in the npm ecosystem. The issue involves os command injection in proctree. Remediation is available in the latest vendor maintenance releases.

CVE-2021-34082 at a Glance

CVE Identifier CVE-2021-34082
GHSA Identifier GHSA-cv76-rv4h-4mqc
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 Proctree
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2021-34082

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

proctree fixed: Latest secure release 
npm install proctree@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 proctree

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2021-34082, inspect your project dependencies using npm:

npm ls proctree

Analyze the terminal output to locate any version of Proctree 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 proctree 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 Proctree, 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 allenhwkim proctree through 0.1.1 and commit 0ac10ae575459457838f14e21d5996f2fa5c7593 for Node.js, allows attackers to execute arbitrary commands via the fix function.

CVE-2021-34082 Affected Proctree Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
proctree
npm/proctree
npm
≤ 0.1.1

References

NVD — CVE-2021-34082 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34082
advisory.checkmarx.net/advisory/cx-2021-47... WEB
https://advisory.checkmarx.net/advisory/CX-2021-4783
Proctree Source Repository REPOSITORY
https://github.com/allenhwkim/proctree
Proctree Source Repository REPOSITORY
https://github.com/allenhwkim/proctree/blob/master/index.js#L46

Frequently Asked Questions

What is CVE-2021-34082?
CVE-2021-34082 is a security vulnerability in Proctree involving OS Command Injection in proctree under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Proctree versions are affected?
Affected versions include releases prior to current release patches across affected packages: proctree.
What version fixes CVE-2021-34082?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is proctree affected?
Yes, proctree is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with CVE-2021-34082?
CVE-2021-34082 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-2021-34082?
Run the dependency tree command: 'npm ls proctree'. 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-cv76-rv4h-4mqc",
  "modified" : "2022-06-03T22:24:14Z",
  "published" : "2022-06-03T00:00:59Z",
  "aliases" : [ "CVE-2021-34082" ],
  "summary" : "OS Command Injection in proctree",
  "details" : "OS Command Injection vulnerability in allenhwkim proctree through 0.1.1 and commit 0ac10ae575459457838f14e21d5996f2fa5c7593 for Node.js, allows attackers to execute arbitrary commands via the fix function.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "proctree"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-34082"
  }, {
    "type" : "WEB",
    "url" : "https://advisory.checkmarx.net/advisory/CX-2021-4783"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/allenhwkim/proctree"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/allenhwkim/proctree/blob/master/index.js#L46"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-03T22:24:14Z",
    "nvd_published_at" : "2022-06-02T14:15:00Z"
  }
}