Description
Stirling-PDF 3.0.0 through 3.2.0 contains an authorization bypass vulnerability that allows authenticated users to access other users' stored files by pointing a processing folder at the server storage directory. Attackers can create a folder via POST /api/v1/processing-folders targeting storage/<victimUserId>, list files, and run pipelines to read, modify, or destroy victims' files.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Stirling-Tools | Stirling-PDF | 3.0.0 – ≤ 3.2.0 | — |
References
- https://github.com/abraxas/stirling-storage-folder-idor exploit technical-description
- https://abraxaslabs.tech/research/stirling-storage-folder-idor technical-description
- https://abraxaslabs.tech/research/stirling-pdf-3.2.0-leftovers technical-description
- https://github.com/Stirling-Tools/Stirling-PDF/blob/v3.2.0/app/proprietary/src/main/java/stirling/software/proprietary/policy/config/FolderAccessGuard.java technical-description
- https://github.com/Stirling-Tools/Stirling-PDF/blob/v3.2.0/app/proprietary/src/main/java/stirling/software/proprietary/policy/controller/ProcessingFolderController.java technical-description
- VulnCheck Advisory: Stirling-PDF 3.0.0 through 3.2.0 Authorization Bypass via Processing Folders third-party-advisory