CVE-2023-47126: Typo3/cms install Information Disclosure Vulnerability

LOW
Advisory Identifier: GHSA-p2jh-95jg-2w55
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CVSS 3.7
CWE-200
Published
Advisory Summary

CVE-2023-47126 is a LOW (CVSS 3.7) information disclosure vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Typo3/cms install libraries in the Packagist ecosystem. The issue involves information disclosure in typo3/cms-install tool. Remediation is available by upgrading affected packages to version 12.4.8.

CVE-2023-47126 at a Glance

CVE Identifier CVE-2023-47126
GHSA Identifier GHSA-p2jh-95jg-2w55
Severity LOW
CVSS v3.1 Base Score 3.7
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Typo3/cms install
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 3.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-47126

To remediate this vulnerability, upgrade all affected Typo3/cms install 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-install fixed: 12.4.8 
Upgrade typo3/cms-install to 12.4.8
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-install

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-47126, inspect your project dependencies for Typo3/cms install:

inspect dependencies for typo3/cms-install

Analyze the terminal output to locate any version of Typo3/cms install in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 12.4.8), 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 CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Typo3/cms install, 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

> ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C` (3.5) ### Problem The login screen of the standalone install tool discloses the full path of the transient data directory (e.g. _/var/www/html/var/transient/_). This applies to composer-based scenarios only - “classic” non-composer installations are not affected. ### Solution Update to TYPO3 version 12.4.8 that fixes the problem described above. ### Credits Thanks to Markus Klein who reported and fixed the issue. ### References * [TYPO3-CORE-SA-2023-005](https://typo3.org/security/advisory/typo3-core-sa-2023-005)

CVE-2023-47126 Affected Typo3/cms install Versions

1 component(s)
Fixed Versions:
12.4.8
Product / Package Ecosystem Affected Versions Fixed Version
typo3/cms-install
 Packagist
≥ 12.2.0
< 12.4.8
12.4.8

References

GitHub Advisory / Wiki ADVISORY
https://github.com/TYPO3/typo3/security/advisories/GHSA-p2jh-95jg-2w55
NVD — CVE-2023-47126 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-47126
Security Fix Commit FIX COMMIT
https://github.com/TYPO3/typo3/commit/1a735dac01ec7b337ed0d80c738caa8967dea423
Typo3/cms install Source Repository REPOSITORY
https://github.com/TYPO3/typo3
Typo3/cms install Security Information SECURITY
https://typo3.org/security/advisory/typo3-core-sa-2023-005

Frequently Asked Questions

What is CVE-2023-47126?
CVE-2023-47126 is a security vulnerability in Typo3/cms install involving Information Disclosure in typo3/cms-install tool under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Typo3/cms install versions are affected?
Affected versions include releases prior to 12.4.8 across affected packages: typo3/cms-install.
What version fixes CVE-2023-47126?
Upgrading to 12.4.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is typo3/cms-install affected?
Yes, typo3/cms-install is affected in releases prior to 12.4.8. Upgrade your dependency to 12.4.8 or later.
What is the CVSS score of CVE-2023-47126?
CVE-2023-47126 has a CVSS v3.1 base score of 3.7 (LOW) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2023-47126?
CVE-2023-47126 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Packagist dependencies for CVE-2023-47126?
Run the dependency tree command: 'inspect dependencies for typo3/cms-install'. 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-p2jh-95jg-2w55",
  "modified" : "2023-11-14T21:37:14Z",
  "published" : "2023-11-14T20:34:26Z",
  "aliases" : [ "CVE-2023-47126" ],
  "summary" : "Information Disclosure in typo3/cms-install tool",
  "details" : "> ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C` (3.5)\n\n### Problem\nThe login screen of the standalone install tool discloses the full path of the transient data directory (e.g. _/var/www/html/var/transient/_). This applies to composer-based scenarios only - “classic” non-composer installations are not affected.\n\n### Solution\nUpdate to TYPO3 version 12.4.8 that fixes the problem described above.\n\n### Credits\nThanks to Markus Klein who reported and fixed the issue.\n\n### References\n* [TYPO3-CORE-SA-2023-005](https://typo3.org/security/advisory/typo3-core-sa-2023-005)\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "typo3/cms-install"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "12.2.0"
      }, {
        "fixed" : "12.4.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/typo3/security/advisories/GHSA-p2jh-95jg-2w55"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-47126"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/TYPO3/typo3/commit/1a735dac01ec7b337ed0d80c738caa8967dea423"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/TYPO3/typo3"
  }, {
    "type" : "WEB",
    "url" : "https://typo3.org/security/advisory/typo3-core-sa-2023-005"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-11-14T20:34:26Z",
    "nvd_published_at" : "2023-11-14T20:15:08Z"
  }
}