CVE-2024-25121: Improper Access Control Persisting File Abstraction Layer Entities via Data Handler in TYPO3
First published: Tue Feb 13 2024(Updated: )
### Problem 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. ### Solution Update to TYPO3 versions 8.7.57 ELTS, 9.5.46 ELTS, 10.4.43 ELTS, 11.5.35 LTS, 12.4.11 LTS, 13.0.1 that fix the problem described. #### ℹ️ Strong security defaults - Manual actions required 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;`. ### Credits Thanks to TYPO3 core & security team member Oliver Hader who reported and fixed the issue. ### References * [TYPO3-CORE-SA-2024-006](https://typo3.org/security/advisory/typo3-core-sa-2024-006)
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/typo3/cms-core | =13.0.0 | 13.0.1 |
| composer/typo3/cms-core | >=12.0.0<=12.4.10 | 12.4.11 |
| composer/typo3/cms-core | >=11.0.0<=11.5.34 | 11.5.35 |
| composer/typo3/cms-core | >=10.0.0<=10.4.42 | 10.4.43 |
| composer/typo3/cms-core | >=9.0.0<=9.5.45 | 9.5.46 |
| composer/typo3/cms-core | >=8.0.0<=8.7.56 | 8.7.57 |
| 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 | =13.0.0 |
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Reference Links
- https://github.com/TYPO3/typo3/security/advisories/GHSA-rj3x-wvc6-5j66
- https://typo3.org/security/advisory/typo3-core-sa-2024-006
- https://github.com/TYPO3/typo3/commit/38f0bf9a61e10365be26eb75bc23a81184dbed07
- https://github.com/TYPO3/typo3/commit/71e652bf84b16fd3592205f61f36750ab03db74c
- https://github.com/TYPO3/typo3/commit/b47b6ddf5a5f3f852c6e43f837360780c12e3c47
- https://github.com/advisories/GHSA-rj3x-wvc6-5j66 (Advisory)
- https://nvd.nist.gov/vuln/detail/CVE-2024-25121
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