GHSA-65j7-66p7-9xgf: Font scrubber Malicious Package Vulnerability

CRITICAL
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CVSS 9.8
CWE-506
Published
Advisory Summary

GHSA-65j7-66p7-9xgf is a CRITICAL (CVSS 9.8) malicious package vulnerability (CWE-506: Embedded Malicious Code) affecting Font scrubber libraries in the npm ecosystem. The issue involves malicious package in font-scrubber. Remediation is available in the latest vendor maintenance releases.

GHSA-65j7-66p7-9xgf at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-65j7-66p7-9xgf
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-506: Embedded Malicious Code
Affected Product Font scrubber
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 GHSA-65j7-66p7-9xgf

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

font-scrubber fixed: Latest secure release 
npm install font-scrubber@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 font-scrubber

How to Check if You Are Affected

To determine whether your Node.js application is affected by GHSA-65j7-66p7-9xgf, inspect your project dependencies using npm:

npm ls font-scrubber

Analyze the terminal output to locate any version of Font scrubber 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 font-scrubber 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-506: Embedded Malicious Code, where the product contains code that appears to be malicious in nature. In Font scrubber, 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

Version 1.2.2 of `font-scrubber` contains malicious code as a postinstall script. The package attempts to upload sensitive files from the system to a remote server. The files include configuration files, command history logs, SSH keys and /etc/passwd. ## Recommendation Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

GHSA-65j7-66p7-9xgf Affected Font scrubber Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
font-scrubber
npm/font-scrubber
npm

References

www.npmjs.com/advisories/919 WEB
https://www.npmjs.com/advisories/919

Frequently Asked Questions

What is GHSA-65j7-66p7-9xgf?
GHSA-65j7-66p7-9xgf is a security vulnerability in Font scrubber involving Malicious Package in font-scrubber under CWE-506: Embedded Malicious Code.
Which Font scrubber versions are affected?
Affected versions include releases prior to current release patches across affected packages: font-scrubber.
What version fixes GHSA-65j7-66p7-9xgf?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is font-scrubber affected?
Yes, font-scrubber is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of GHSA-65j7-66p7-9xgf?
GHSA-65j7-66p7-9xgf 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 GHSA-65j7-66p7-9xgf?
GHSA-65j7-66p7-9xgf is classified under CWE-506: Embedded Malicious Code (The product contains code that appears to be malicious in nature.).
How can I check npm dependencies for GHSA-65j7-66p7-9xgf?
Run the dependency tree command: 'npm ls font-scrubber'. 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-65j7-66p7-9xgf",
  "modified" : "2021-09-30T21:59:50Z",
  "published" : "2020-09-02T21:51:55Z",
  "aliases" : [ ],
  "summary" : "Malicious Package in font-scrubber",
  "details" : "Version 1.2.2 of `font-scrubber` contains malicious code as a postinstall script. The package attempts to upload sensitive files from the system to a remote server. The files include configuration files, command history logs, SSH keys and /etc/passwd.\n\n\n## Recommendation\n\nAny computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer.\n\nThe package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.",
  "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" : "font-scrubber"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://www.npmjs.com/advisories/919"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-506" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-08-31T18:40:34Z",
    "nvd_published_at" : null
  }
}