Unable to fetch commit details from the provided Codeberg URL (https://codeberg.org/sjbr/sr-feuser-register/commit/be44f61a475371c36b2035cbb523b56f5e34267d) or a GitHub mirror. The TYPO3 security advisory (TYPO3-EXT-SA-2025-008) describes the vulnerability as 'Remote Code Execution via unsafe deserialization' where 'The extension allows the exchange of a serialized file object representation of a previously uploaded file without proper validation. This enables an attacker to inject arbitrary serialized PHP objects, which may be deserialized on the server side...'. Without access to the specific code changes in the patch, it's impossible to identify the exact vulnerable functions, their file paths, or provide patch evidence. The vulnerable functions would be those responsible for handling and deserializing these file object representations within the 'sr_feuser_register' extension. To identify them, analysis of the code changes between the vulnerable versions (e.g., 12.4.8) and the patched version (12.5.0) would be required.
The primary challenge in this analysis is the inability to directly fetch and inspect the commit diff that patches the vulnerability. The provided Codeberg link (https://codeberg.org/sjbr/sr-feuser-register/commit/be44f61a475371c36b2035cbb523b56f5e34267d) was inaccessible, and attempts to find a mirror on GitHub also failed.
Therefore, the analysis relies heavily on the textual description of the vulnerability provided in the TYPO3 security advisory (TYPO3-EXT-SA-2025-008).
Here's the reasoning process:
Understand the Vulnerability Type: The core issue is "Remote Code Execution via unsafe deserialization." This immediately tells us that the vulnerability lies in a part of the code that deserializes data, and this data can be controlled by an attacker.
Identify the Attack Vector: The advisory states: "The extension allows the exchange of a serialized file object representation of a previously uploaded file without proper validation. This enables an attacker to inject arbitrary serialized PHP objects, which may be deserialized on the server side..."
Locate Potential Code Areas (Conceptual): Based on the above, the vulnerable code must be in a part of the sr_feuser_register extension that:
unserialize()) on this input.Infer Function Characteristics (Speculative): While the exact function names are unknown without the patch, we can infer their purpose:
Acknowledge Limitations: Without the commit diff, it's impossible to:
Formulate the Output:
vulnerable_functions array must be empty, as per the instructions ("Return Empty if Uncertain - Don't hallucinate").reasoning section explains why the functions couldn't be identified (lack of commit access) and what the general nature of the vulnerable functions would be based on the advisory.If the commit be44f61a475371c36b2035cbb523b56f5e34267d were accessible, the process would have been:
get_commit_infos.diff for each modified file.unserialize() with a safer alternative, or changes in how input to unserialize() is handled).| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| sjbr/sr-feuser-register | composer | >= 5.1.0, < 12.5.0 | 12.5.0 |