Vulnerabilities in pkg:npm/jison

PACKAGE
Advisory Identifier: GHSA-vr9x-mm65-2438
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Advisory Summary

CVE-2020-8178 is a HIGH command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Jison libraries in the npm ecosystem. The issue involves command injection in jison. Remediation is available in the latest vendor maintenance releases.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:npm/jison

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:npm/jison. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-vr9x-mm65-2438 CVE-2020-8178 HIGH Command Injection in jison

CVE-2020-8178 at a Glance

CVE Identifier CVE-2020-8178
GHSA Identifier GHSA-vr9x-mm65-2438
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 Jison
Package Ecosystem npm
Published Date
Last Updated

How to Fix CVE-2020-8178

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

jison fixed: Latest secure release 
npm install jison@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 jison

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2020-8178, inspect your project dependencies using npm:

npm ls jison

Analyze the terminal output to locate any version of Jison 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 jison 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 Jison, 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

**Withdrawn:** This vulnerability is not present in the released npm package. Rather the vulnerable code is part of the repo, but not part of the package. See linked hackerone report for more details. Insufficient input validation in npm package `jison` <= 0.4.18 may lead to OS command injection attacks.

CVE-2020-8178 Affected Jison Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
jison
npm/jison
npm
≤ 0.4.18

References

NVD — CVE-2020-8178 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8178
hackerone.com/reports/690010 WEB
https://hackerone.com/reports/690010

Frequently Asked Questions

What is CVE-2020-8178?
CVE-2020-8178 is a security vulnerability in Jison involving Command Injection in jison under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Jison versions are affected?
Affected versions include releases prior to current release patches across affected packages: jison.
What version fixes CVE-2020-8178?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is jison affected?
Yes, jison is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with CVE-2020-8178?
CVE-2020-8178 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-2020-8178?
Run the dependency tree command: 'npm ls jison'. 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-vr9x-mm65-2438",
  "modified" : "2020-10-19T18:55:38Z",
  "published" : "2020-10-08T21:38:51Z",
  "withdrawn" : "2020-10-19T18:55:38Z",
  "aliases" : [ "CVE-2020-8178" ],
  "summary" : "Command Injection in jison",
  "details" : "**Withdrawn:** This vulnerability is not present in the released npm package.  Rather the vulnerable code is\npart of the repo, but not part of the package. See linked hackerone report for more details.\n\nInsufficient input validation in npm package `jison` <= 0.4.18 may lead to OS command injection attacks.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "jison"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "0.4.18"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-8178"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/690010"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-10-08T21:36:44Z",
    "nvd_published_at" : null
  }
}