CVE-2020-8129: Script manager Code Injection Vulnerability

HIGH
Advisory Identifier: GHSA-rhwf-hqpr-q8g2
Share
CVSS 9.8
CWE-94
Published
Advisory Summary

CVE-2020-8129 is a HIGH (CVSS 9.8) code injection vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Script manager libraries in the npm ecosystem. The issue involves code injection in script-manager. Remediation is available by upgrading affected packages to version 0.9.0.

CVE-2020-8129 at a Glance

CVE Identifier CVE-2020-8129
GHSA Identifier GHSA-rhwf-hqpr-q8g2
Severity HIGH
CVSS v3.1 Base Score 9.8
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Script manager
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-2020-8129

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

script-manager fixed: 0.9.0 
npm install script-manager@0.9.0
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 script-manager

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-8129, inspect your project dependencies using npm:

npm ls script-manager

Analyze the terminal output to locate any version of Script manager in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.9.0), your application is affected.

Note: The npm ls script-manager 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-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Script manager, 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

An unintended require vulnerability in script-manager npm package version 0.8.6 and earlier may allow attackers to execute arbitrary code.

CVE-2020-8129 Affected Script manager Versions

1 component(s)
Fixed Versions:
0.9.0
Product / Package Ecosystem Affected Versions Fixed Version
script-manager
npm/script-manager
npm
< 0.9.0
0.9.0

References

NVD — CVE-2020-8129 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8129
hackerone.com/reports/660563 WEB
https://hackerone.com/reports/660563

Frequently Asked Questions

What is CVE-2020-8129?
CVE-2020-8129 is a security vulnerability in Script manager involving Code Injection in script-manager under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Script manager versions are affected?
Affected versions include releases prior to 0.9.0 across affected packages: script-manager.
What version fixes CVE-2020-8129?
Upgrading to 0.9.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is script-manager affected?
Yes, script-manager is affected in releases prior to 0.9.0. Upgrade your dependency to 0.9.0 or later.
What is the CVSS score of CVE-2020-8129?
CVE-2020-8129 has a CVSS v3.1 base score of 9.8 (HIGH) 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-2020-8129?
CVE-2020-8129 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check npm dependencies for CVE-2020-8129?
Run the dependency tree command: 'npm ls script-manager'. 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-rhwf-hqpr-q8g2",
  "modified" : "2021-04-07T19:36:21Z",
  "published" : "2021-04-13T15:24:38Z",
  "aliases" : [ "CVE-2020-8129" ],
  "summary" : "Code Injection in script-manager",
  "details" : "An unintended require vulnerability in script-manager npm package version 0.8.6 and earlier may allow attackers to execute arbitrary code.",
  "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" : "script-manager"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.9.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.8.6"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-8129"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/660563"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-94" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-04-07T19:36:21Z",
    "nvd_published_at" : "2020-02-14T22:15:00Z"
  }
}