Potential CSV Injection vector in OctoberCMS
Vulnerability Description
In OctoberCMS (october/october composer package) versions from 1.0.319 and before 1.0.466, any users with the ability to modify any data that could eventually be exported as a CSV file from the `ImportExportController` could potentially introduce a CSV injection into the data to cause the generated CSV export file to be malicious. This requires attackers to achieve the following before a successful attack can be completed: 1. Have found a vulnerability in the victims spreadsheet software of choice. 2. Control data that would potentially be exported through the `ImportExportController` by a theoretical victim. 3. Convince the victim to export above data as a CSV and run it in vulnerable spreadsheet software while also bypassing any sanity checks by said software. Issue has been patched in Build 466 (v1.0.466).
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-5299
Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/octobercms/october/security/advisories/GHSA-4rhm-m2fp-hx7q
- https://github.com/octobercms/library/commit/c84bf03f506052c848f2fddc05f24be631427a1a
- https://github.com/octobercms/october/commit/802d8c8e09a2b342649393edb6d3ceb958851484
- http://packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.html
- http://seclists.org/fulldisclosure/2020/Aug/2
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