CVE-2020-7634: Heroku addonpool OS Command Injection Vulnerability

CRITICAL
Advisory Identifier: GHSA-3q9x-w53p-jg53
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CVSS 9.8
CWE-78
Published
Advisory Summary

CVE-2020-7634 is a CRITICAL (CVSS 9.8) os command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Heroku addonpool libraries in the npm ecosystem. The issue involves os command injection in heroku-addonpool. Remediation is available by upgrading affected packages to version 0.1.16.

CVE-2020-7634 at a Glance

CVE Identifier CVE-2020-7634
GHSA Identifier GHSA-3q9x-w53p-jg53
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Affected Product Heroku addonpool
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2020-7634

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

heroku-addonpool fixed: 0.1.16 
npm install heroku-addonpool@0.1.16
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 heroku-addonpool

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-7634, inspect your project dependencies using npm:

npm ls heroku-addonpool

Analyze the terminal output to locate any version of Heroku addonpool in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.1.16), your application is affected.

Note: The npm ls heroku-addonpool 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 Heroku addonpool, 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

heroku-addonpool through 0.1.15 is vulnerable to Command Injection. The second parameter of the exported function `HerokuAddonPool(id, app, opt)` can be controlled by users without any sanitization. **PoC** ```js var Root = require("heroku-addonpool"); var root = Root("sss", "& touch JHU", {}); root.setup(); ```

CVE-2020-7634 Affected Heroku addonpool Versions

1 component(s)
Fixed Versions:
0.1.16
Product / Package Ecosystem Affected Versions Fixed Version
heroku-addonpool
npm/heroku-addonpool
npm
< 0.1.16
0.1.16

References

NVD — CVE-2020-7634 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7634
Security Fix Commit FIX COMMIT
https://github.com/nodef/heroku-addonpool/commit/b1a5b316473ac92d783f3d54ee048d54082da38d
Heroku addonpool Source Repository REPOSITORY
https://github.com/nodef/heroku-addonpool/blob/master/index.js
snyk.io/vuln/snyk-js-heroku... WEB
https://snyk.io/vuln/SNYK-JS-HEROKUADDONPOOL-564428

Frequently Asked Questions

What is CVE-2020-7634?
CVE-2020-7634 is a security vulnerability in Heroku addonpool involving OS Command Injection in heroku-addonpool under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Heroku addonpool versions are affected?
Affected versions include releases prior to 0.1.16 across affected packages: heroku-addonpool.
What version fixes CVE-2020-7634?
Upgrading to 0.1.16 (or the latest patched release for your respective branch) resolves the vulnerability.
Is heroku-addonpool affected?
Yes, heroku-addonpool is affected in releases prior to 0.1.16. Upgrade your dependency to 0.1.16 or later.
What is the CVSS score of CVE-2020-7634?
CVE-2020-7634 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2020-7634?
CVE-2020-7634 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-2020-7634?
Run the dependency tree command: 'npm ls heroku-addonpool'. 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-3q9x-w53p-jg53",
  "modified" : "2023-09-13T21:57:41Z",
  "published" : "2021-12-09T19:52:03Z",
  "aliases" : [ "CVE-2020-7634" ],
  "summary" : "OS Command Injection in heroku-addonpool",
  "details" : "heroku-addonpool through 0.1.15 is vulnerable to Command Injection. The second parameter of the exported function `HerokuAddonPool(id, app, opt)` can be controlled by users without any sanitization.\n\n**PoC**\n```js\nvar Root = require(\"heroku-addonpool\");\nvar root = Root(\"sss\", \"& touch JHU\", {});\nroot.setup();\n```",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "heroku-addonpool"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.16"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-7634"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nodef/heroku-addonpool/commit/b1a5b316473ac92d783f3d54ee048d54082da38d"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nodef/heroku-addonpool/blob/master/index.js"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JS-HEROKUADDONPOOL-564428"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-05-24T22:14:43Z",
    "nvd_published_at" : "2020-04-06T13:15:00Z"
  }
}