Fallback Storage Vulnerability in TYPO3 Allows File Name and Content Retrieval
CVE-2024-25121

7.1HIGH

Key Information:

Vendor

Typo3

Status
Typo3
Vendor
CVE Published:
13 February 2024

What is CVE-2024-25121?

TYPO3, a popular open-source PHP-based web content management system, has a vulnerability involving the File Abstraction Layer (FAL). In affected versions, utilizing the DataHandler, attackers can exploit this issue to gain unauthorized access to files in the fallback storage. This storage, referred to as 'zero-storage', serves as a compatibility layer for files that are outside correctly configured file storages and within the public web root directory. Exploitation requires an existing valid backend user account, making it critical for users to update to the latest secure versions. Updates to TYPO3 ensure that access to 'sys_file' entities is restricted by default and that 'sys_file_reference' and 'sys_file_metadata' cannot reference fallback storage files without explicit permission.

Affected Version(s)

typo3 >= 13.0.0, < 13.0.1 < 13.0.0, 13.0.1

typo3 >= 12.0.0, < 12.4.11 < 12.0.0, 12.4.11

typo3 >= 11.0.0, < 11.5.35 < 11.0.0, 11.5.35

References

https://github.com/TYPO3/typo3/security/advisories/GHSA-r...
x_refsource_CONFIRM
https://typo3.org/security/advisory/typo3-core-sa-2024-006
x_refsource_MISC

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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