CVE-2024-25121: typo3 Information Disclosure — Fix

Description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions of TYPO3 entities of the File Abstraction Layer (FAL) could be persisted directly via `DataHandler`. This allowed attackers to reference files in the fallback storage directly and retrieve their file names and contents. The fallback storage ("zero-storage") is used as a backward compatibility layer for files located outside properly configured file storages and within the public web root directory. Exploiting this vulnerability requires a valid backend user account. Users are advised to update to TYPO3 version 8.7.57 ELTS, 9.5.46 ELTS, 10.4.43 ELTS, 11.5.35 LTS, 12.4.11 LTS, or 13.0.1 which fix the problem described. When persisting entities of the File Abstraction Layer directly via DataHandler, `sys_file` entities are now denied by default, and `sys_file_reference` & `sys_file_metadata` entities are not permitted to reference files in the fallback storage anymore. When importing data from secure origins, this must be explicitly enabled in the corresponding DataHandler instance by using `$dataHandler->isImporting = true;`.

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CVSS v3.1 Score

7.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Weakness Type (CWE)

CWE-200 CWE-200

CWE-284 CWE-284

Affected Products

Vendor	Product	Versions
typo3	typo3	8.0.0 — 8.7.57
typo3	typo3	9.0.0 — 9.5.46
typo3	typo3	10.0.0 — 10.4.43
typo3	typo3	11.0.0 — 11.5.35
typo3	typo3	12.0.0 — 12.4.11
typo3	typo3	All

References

Advisories & Patches

https://typo3.org/security/advisory/typo3-core-sa-2024-006 https://typo3.org/security/advisory/typo3-core-sa-2024-006

Other References

https://github.com/TYPO3/typo3/security/advisories/GHSA-rj3x-wvc6-5j66 https://github.com/TYPO3/typo3/security/advisories/GHSA-rj3x-wvc6-5j66

Frequently Asked Questions

What is CVE-2024-25121? +

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions of TYPO3 entities of the File Abstraction Layer (FAL) could be persisted directly via `DataHandler`. This allowed attackers to reference files in the fallback storage directly and retrieve their file names and contents. The fallback storage ("zero-storage") is used as a backward compatibility layer for files located outside properly configured file storages and within the public web root directory. Exploiting this vulnerability requires a valid backend user account. Users are advised to update to TYPO3 version 8.7.57 ELTS, 9.5.46 ELTS, 10.4.43 ELTS, 11.5.35 LTS, 12.4.11 LTS, or 13.0.1 which fix the problem described. When persisting entities of the File Abstraction Layer directly via DataHandler, `sys_file` entities are now denied by default, and `sys_file_reference` & `sys_file_metadata` entities are not permitted to reference files in the fallback storage anymore. When importing data from secure origins, this must be explicitly enabled in the corresponding DataHandler instance by using `$dataHandler->isImporting = true;`. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2024-25121? +

CVE-2024-25121 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-25121? +

CVE-2024-25121 affects products from typo3, specifically: typo3. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-25121? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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