CVE-2021-43996: Facade/ignition Incorrect Access Control Vulnerability

CRITICAL
Advisory Identifier: GHSA-vhrp-8qx4-vr6c
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CVSS 9.8
CWE-284
Published
Advisory Summary

CVE-2021-43996 is a CRITICAL (CVSS 9.8) incorrect access control vulnerability (CWE-284: Improper Access Control) affecting Facade/ignition libraries in the Packagist ecosystem. The issue involves incorrect access control in ignition. Remediation is available by upgrading affected packages to version 1.16.15, 2.0.6.

CVE-2021-43996 at a Glance

CVE Identifier CVE-2021-43996
GHSA Identifier GHSA-vhrp-8qx4-vr6c
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-284: Improper Access Control
Affected Product Facade/ignition
Package Ecosystem Packagist
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-2021-43996

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

facade/ignition fixed: 1.16.15 
Upgrade facade/ignition to 1.16.15
facade/ignition fixed: 2.0.6 
Upgrade facade/ignition to 2.0.6
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for facade/ignition

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-43996, inspect your project dependencies for Facade/ignition:

inspect dependencies for facade/ignition

Analyze the terminal output to locate any version of Facade/ignition in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.16.15), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-284: Improper Access Control, where the product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. In Facade/ignition, 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

The Ignition component before 1.16.15, and 2.0.x before 2.0.6, for Laravel has a "fix variable names" feature that can lead to incorrect access control.

CVE-2021-43996 Affected Facade/ignition Versions

2 component(s)
Fixed Versions:
1.16.152.0.6
Product / Package Ecosystem Affected Versions Fixed Version
facade/ignition
 Packagist
< 1.16.15
1.16.15
facade/ignition
 Packagist
≥ 2.0.0
< 2.0.6
2.0.6

References

NVD — CVE-2021-43996 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43996
Facade/ignition Source Repository REPOSITORY
https://github.com/facade/ignition/pull/285
Facade/ignition Source Repository REPOSITORY
https://github.com/facade/ignition
Facade/ignition Source Repository REPOSITORY
https://github.com/facade/ignition/compare/1.16.14...1.16.15
Facade/ignition Source Repository REPOSITORY
https://github.com/facade/ignition/compare/2.0.5...2.0.6

Frequently Asked Questions

What is CVE-2021-43996?
CVE-2021-43996 is a security vulnerability in Facade/ignition involving Incorrect Access Control in Ignition under CWE-284: Improper Access Control.
Which Facade/ignition versions are affected?
Affected versions include releases prior to 1.16.15, 2.0.6 across affected packages: facade/ignition.
What version fixes CVE-2021-43996?
Upgrading to 1.16.15, 2.0.6 (or the latest patched release for your respective branch) resolves the vulnerability.
Is facade/ignition affected?
Yes, facade/ignition is affected in releases prior to 1.16.15, 2.0.6. Upgrade your dependency to 1.16.15, 2.0.6 or later.
What is the CVSS score of CVE-2021-43996?
CVE-2021-43996 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-2021-43996?
CVE-2021-43996 is classified under CWE-284: Improper Access Control (The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.).
How can I check Packagist dependencies for CVE-2021-43996?
Run the dependency tree command: 'inspect dependencies for facade/ignition'. 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-vhrp-8qx4-vr6c",
  "modified" : "2023-08-08T19:59:04Z",
  "published" : "2021-11-19T20:18:20Z",
  "aliases" : [ "CVE-2021-43996" ],
  "summary" : "Incorrect Access Control in Ignition",
  "details" : "The Ignition component before 1.16.15, and 2.0.x before 2.0.6, for Laravel has a \"fix variable names\" feature that can lead to incorrect access control.",
  "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" : "Packagist",
      "name" : "facade/ignition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.16.15"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "facade/ignition"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.0.6"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-43996"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/facade/ignition/pull/285"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/facade/ignition"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/facade/ignition/compare/1.16.14...1.16.15"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/facade/ignition/compare/2.0.5...2.0.6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-284" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-11-18T21:07:26Z",
    "nvd_published_at" : "2021-11-17T20:15:00Z"
  }
}