Improper Access Control Persisting File Abstraction Layer Entities via Data Handler in TYPO3
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 13.0.1, 12.4.11, 11.5.35, 10.4.43, 9.5.46, and 1 more
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
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;`.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- TYPO3 typo3
From 13.0.0 · fixed in 13.0.1; From 12.0.0 · fixed in 12.4.11; From 11.0.0 · fixed in 11.5.35; From 10.0.0 · fixed in 10.4.43; From 9.0.0 · fixed in 9.5.46; From 8.0.0 · fixed in 8.7.57
- typo3/cms-corePackagist
From 8.0.0 · fixed in 8.7.57
- typo3/cms-corePackagist
From 9.0.0 · fixed in 9.5.46
- typo3/cms-corePackagist
From 10.0.0 · fixed in 10.4.43
- typo3/cms-corePackagist
From 11.0.0 · fixed in 11.5.35
- typo3/cms-corePackagist
From 12.0.0 · fixed in 12.4.11
- typo3/cms-corePackagist
From 13.0.0 · fixed in 13.0.1