CVE-2020-5299: Improper Neutralization of Special Elements used in a Command ('Command Injection')
(updated )
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).
References
- packetstormsecurity.com/files/158730/October-CMS-Build-465-XSS-File-Read-File-Deletion-CSV-Injection.html
- seclists.org/fulldisclosure/2020/Aug/2
- github.com/advisories/GHSA-4rhm-m2fp-hx7q
- github.com/octobercms/library/commit/c84bf03f506052c848f2fddc05f24be631427a1a
- github.com/octobercms/october/commit/802d8c8e09a2b342649393edb6d3ceb958851484
- github.com/octobercms/october/security/advisories/GHSA-4rhm-m2fp-hx7q
- nvd.nist.gov/vuln/detail/CVE-2020-5299
Code Behaviors & Features
Detect and mitigate CVE-2020-5299 with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →