GHSA-f5rr-9r84-wwqf: Typo3/cms Typo3 Broken Access Control Vulnerability

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Advisory Summary

GHSA-f5rr-9r84-wwqf is a MODERATE typo3 broken access control vulnerability (General Security Weakness) affecting Typo3/cms libraries in the Packagist ecosystem. The issue involves typo3 broken access control in import module. Remediation is available by upgrading affected packages to version 9.5.8.

GHSA-f5rr-9r84-wwqf at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-f5rr-9r84-wwqf
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Typo3/cms
Package Ecosystem Packagist
Published Date
Last Updated

How to Fix GHSA-f5rr-9r84-wwqf

To remediate this vulnerability, upgrade all affected Typo3/cms 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 fixed: 9.5.8 
Upgrade typo3/cms to 9.5.8
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

How to Check if You Are Affected

To determine whether your application is affected by GHSA-f5rr-9r84-wwqf, inspect your project dependencies for Typo3/cms:

inspect dependencies for typo3/cms

Analyze the terminal output to locate any version of Typo3/cms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.5.8), 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 General Security Weakness. In Typo3/cms, 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 the Import/Export module is susceptible to broken access control. Regular backend users have access to import functionality which usually only is available to admin users or users having User TSconfig setting options.impexp.enableImportForNonAdminUser explicitly enabled. Database content to be imported however was correctly checked against users’ permissions and not affected. However it was possible to upload files by-passing restrictions of the file abstraction layer (FAL) - however this did not affect executable files which have been correctly secured by fileDenyPattern. Currently the only known vulnerability is to directly inject *.form.yaml files which could be used to trigger the vulnerability of TYPO3-CORE-SA-2018-003 (privilege escalation & SQL injection) - which requires the Form Framework (ext:form) being available on an according website. CVSSv3 scoring is based on this scenario. A valid backend user account is needed in order to exploit this vulnerability.

GHSA-f5rr-9r84-wwqf Affected Typo3/cms Versions

1 component(s)
Fixed Versions:
9.5.8
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms
 Packagist
≥ 9.0.0
< 9.5.8
9.5.8

References

Typo3/cms Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2019-06-25-7.yaml
Typo3/cms Source Repository REPOSITORY
https://github.com/TYPO3/typo3
Typo3/cms Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2019-017

Frequently Asked Questions

What is GHSA-f5rr-9r84-wwqf?
GHSA-f5rr-9r84-wwqf is a security vulnerability in Typo3/cms involving Typo3 Broken Access Control in Import Module under General Security Weakness.
Which Typo3/cms versions are affected?
Affected versions include releases prior to 9.5.8 across affected packages: typo3/cms.
What version fixes GHSA-f5rr-9r84-wwqf?
Upgrading to 9.5.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/cms affected?
Yes, typo3/cms is affected in releases prior to 9.5.8. Upgrade your dependency to 9.5.8 or later.
What CWE is associated with GHSA-f5rr-9r84-wwqf?
GHSA-f5rr-9r84-wwqf is classified under General Security Weakness.
How can I check Packagist dependencies for GHSA-f5rr-9r84-wwqf?
Run the dependency tree command: 'inspect dependencies for typo3/cms'. 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-f5rr-9r84-wwqf",
  "modified" : "2024-06-05T17:22:52Z",
  "published" : "2024-06-05T17:22:52Z",
  "aliases" : [ ],
  "summary" : "Typo3 Broken Access Control in Import Module",
  "details" : "It has been discovered that the Import/Export module is susceptible to broken access control. Regular backend users have access to import functionality which usually only is available to admin users or users having User TSconfig setting options.impexp.enableImportForNonAdminUser explicitly enabled.\n\nDatabase content to be imported however was correctly checked against users’ permissions and not affected. However it was possible to upload files by-passing restrictions of the file abstraction layer (FAL) - however this did not affect executable files which have been correctly secured by fileDenyPattern.\n\nCurrently the only known vulnerability is to directly inject *.form.yaml files which could be used to trigger the vulnerability of TYPO3-CORE-SA-2018-003 (privilege escalation & SQL injection) - which requires the Form Framework (ext:form) being available on an according website. CVSSv3 scoring is based on this scenario.\n\nA valid backend user account is needed in order to exploit this vulnerability.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.0.0"
      }, {
        "fixed" : "9.5.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2019-06-25-7.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3/typo3"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2019-017"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-06-05T17:22:52Z",
    "nvd_published_at" : null
  }
}