GHSA-x4rj-f7m6-42c3: Typo3/cms core Authentication Bypass Vulnerability

HIGH
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CVSS 7.5
CWE-287
Published
Advisory Summary

GHSA-x4rj-f7m6-42c3 is a HIGH (CVSS 7.5) authentication bypass vulnerability (CWE-287: Improper Authentication) affecting Typo3/cms core libraries in the Packagist ecosystem. The issue involves typo3 cms authentication bypass vulnerability. Remediation is available by upgrading affected packages to version 8.7.17, 9.3.2, 7.6.30.

GHSA-x4rj-f7m6-42c3 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-x4rj-f7m6-42c3
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-287: Improper Authentication
Affected Product Typo3/cms core
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.5

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:N/I:H/A:N).

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 None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix GHSA-x4rj-f7m6-42c3

To remediate this vulnerability, upgrade all affected Typo3/cms core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

typo3/cms-core fixed: 8.7.17 
Upgrade typo3/cms-core to 8.7.17
typo3/cms-core fixed: 9.3.2 
Upgrade typo3/cms-core to 9.3.2
typo3/cms-core fixed: 7.6.30 
Upgrade typo3/cms-core to 7.6.30
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 typo3/cms-core

How to Check if You Are Affected

To determine whether your application is affected by GHSA-x4rj-f7m6-42c3, inspect your project dependencies for Typo3/cms core:

inspect dependencies for typo3/cms-core

Analyze the terminal output to locate any version of Typo3/cms core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 8.7.17), 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-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Typo3/cms core, 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

It has been discovered that TYPO3’s Salted Password system extension (which is a mandatory system component) is vulnerable to Authentication Bypass when using hashing methods which are related by PHP class inheritance. In standard TYPO3 core distributions stored passwords using the blowfish hashing algorithm can be overridden when using MD5 as the default hashing algorithm by just knowing a valid username. Per default the Portable PHP hashing algorithm (PHPass) is used which is not vulnerable.

GHSA-x4rj-f7m6-42c3 Affected Typo3/cms core Versions

3 component(s)
Fixed Versions:
8.7.179.3.27.6.30
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-core
 Packagist
≥ 8.0.0
< 8.7.17
8.7.17
typo3/cms-core
 Packagist
≥ 9.0.0
< 9.3.2
9.3.2
typo3/cms-core
 Packagist
≥ 7.0.0
< 7.6.30
7.6.30

References

Typo3/cms core Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-07-12-1.yaml
Typo3/cms core Source Repository REPOSITORY
https://github.com/TYPO3-CMS/core
Typo3/cms core Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2018-001

Frequently Asked Questions

What is GHSA-x4rj-f7m6-42c3?
GHSA-x4rj-f7m6-42c3 is a security vulnerability in Typo3/cms core involving TYPO3 CMS Authentication Bypass vulnerability under CWE-287: Improper Authentication.
Which Typo3/cms core versions are affected?
Affected versions include releases prior to 8.7.17, 9.3.2, 7.6.30 across affected packages: typo3/cms-core.
What version fixes GHSA-x4rj-f7m6-42c3?
Upgrading to 8.7.17, 9.3.2, 7.6.30 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/cms-core affected?
Yes, typo3/cms-core is affected in releases prior to 8.7.17, 9.3.2, 7.6.30. Upgrade your dependency to 8.7.17, 9.3.2, 7.6.30 or later.
What is the CVSS score of GHSA-x4rj-f7m6-42c3?
GHSA-x4rj-f7m6-42c3 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with GHSA-x4rj-f7m6-42c3?
GHSA-x4rj-f7m6-42c3 is classified under CWE-287: Improper Authentication (When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.).
How can I check Packagist dependencies for GHSA-x4rj-f7m6-42c3?
Run the dependency tree command: 'inspect dependencies for typo3/cms-core'. 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-x4rj-f7m6-42c3",
  "modified" : "2024-05-30T13:49:16Z",
  "published" : "2024-05-30T13:49:16Z",
  "aliases" : [ ],
  "summary" : "TYPO3 CMS Authentication Bypass vulnerability",
  "details" : "It has been discovered that TYPO3’s Salted Password system extension (which is a mandatory system component) is vulnerable to Authentication Bypass when using hashing methods which are related by PHP class inheritance. In standard TYPO3 core distributions stored passwords using the blowfish hashing algorithm can be overridden when using MD5 as the default hashing algorithm by just knowing a valid username. Per default the Portable PHP hashing algorithm (PHPass) is used which is not vulnerable.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "8.0.0"
      }, {
        "fixed" : "8.7.17"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.3.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
        "fixed" : "7.6.30"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/2018-07-12-1.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3-CMS/core"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2018-001"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-30T13:49:16Z",
    "nvd_published_at" : null
  }
}