CVE-2018-3785: Git dummy commit Command Injection Vulnerability

CRITICAL
Advisory Identifier: GHSA-h3c2-x77c-7pvr
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CVSS 9.8
CWE-78
Published
Advisory Summary

CVE-2018-3785 is a CRITICAL (CVSS 9.8) command injection vulnerability (CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')) affecting Git dummy commit libraries in the npm ecosystem. The issue involves command injection in git-dummy-commit. Remediation is available in the latest vendor maintenance releases.

CVE-2018-3785 at a Glance

CVE Identifier CVE-2018-3785
GHSA Identifier GHSA-h3c2-x77c-7pvr
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 Git dummy commit
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-2018-3785

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

git-dummy-commit fixed: Latest secure release 
npm install git-dummy-commit@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 git-dummy-commit

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2018-3785, inspect your project dependencies using npm:

npm ls git-dummy-commit

Analyze the terminal output to locate any version of Git dummy commit 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 git-dummy-commit 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 Git dummy commit, 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

A command injection in git-dummy-commit v1.3.0 allows os level commands to be executed due to an unescaped parameter.

CVE-2018-3785 Affected Git dummy commit Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
git-dummy-commit
npm/git-dummy-commit
npm
≤ 1.3.0

References

NVD — CVE-2018-3785 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-3785
hackerone.com/reports/341710 WEB
https://hackerone.com/reports/341710
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-h3c2-x77c-7pvr

Frequently Asked Questions

What is CVE-2018-3785?
CVE-2018-3785 is a security vulnerability in Git dummy commit involving Command Injection in git-dummy-commit under CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection').
Which Git dummy commit versions are affected?
Affected versions include releases prior to current release patches across affected packages: git-dummy-commit.
What version fixes CVE-2018-3785?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is git-dummy-commit affected?
Yes, git-dummy-commit is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2018-3785?
CVE-2018-3785 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-2018-3785?
CVE-2018-3785 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-2018-3785?
Run the dependency tree command: 'npm ls git-dummy-commit'. 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-h3c2-x77c-7pvr",
  "modified" : "2023-02-03T20:44:46Z",
  "published" : "2018-08-21T17:03:33Z",
  "aliases" : [ "CVE-2018-3785" ],
  "summary" : "Command Injection in git-dummy-commit",
  "details" : "A command injection in git-dummy-commit v1.3.0 allows os level commands to be executed due to an unescaped parameter.",
  "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" : "git-dummy-commit"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.3.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-3785"
  }, {
    "type" : "WEB",
    "url" : "https://hackerone.com/reports/341710"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-h3c2-x77c-7pvr"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-78" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:38:34Z",
    "nvd_published_at" : "2018-08-17T13:29:00Z"
  }
}