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Summary of Changes
Hello @wlgns12370, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request focuses on modifying the authorization requirements for file upload operations. Specifically, it disables the need for authentication and role-based access for the file upload endpoint, making it publicly accessible.
Highlights
- Authorization Removal: The
@PreAuthorizeannotation, which previously enforced authentication and a 'USER' role for the file upload (/api/v1/s3) endpoint, has been removed from theuploadmethod inFileController.java. - Whitelist Update: The
/api/v1/s3endpoint has been added to the globalWhitelist.javaenum, ensuring that requests to this path bypass general security filters.
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Code Review
This pull request disables authorization for the file upload endpoint, introducing a critical security vulnerability by making the endpoint public and unauthenticated. The review highlights this risk, explaining potential DoS attacks and malicious file hosting, with recommendations to secure the application.
| SWAGGER_UI("/api/v1/swagger-ui", WhitelistMethod.ALL), | ||
| VIRTUAL_ACCOUNT("/api/v1/virtual-account", WhitelistMethod.ALL), | ||
| ADMISSION_TICKET("/api/v1/admission-ticket", WhitelistMethod.ALL), | ||
| FILE("/api/v1/s3", WhitelistMethod.ALL), |
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Whitelisting the S3 upload endpoint /api/v1/s3 allows requests to bypass token-based authentication filters. In combination with the removal of @PreAuthorize in FileController, this makes the file upload functionality completely public.
This poses a critical security risk. Please see my comment on FileController.java for a detailed explanation of the vulnerabilities and recommended actions. This line should be removed to ensure all API requests go through the standard authentication and authorization process.
| @@ -23,7 +22,6 @@ public class FileController { | |||
| private final S3Service s3Service; | |||
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| @PostMapping | |||
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Removing the @PreAuthorize annotation makes this file upload endpoint public and unauthenticated, introducing a critical security vulnerability. I've suggested re-adding it to secure the endpoint.
An unauthenticated user can now perform the following malicious actions:
- Denial of Service (DoS): Upload an unlimited number of files to your S3 bucket, which can lead to significant financial costs and service disruption.
- Malicious File Upload: Upload harmful content like malware, viruses, or phishing pages.
- Arbitrary Folder Upload: The
folderNamerequest parameter allows an attacker to choose the destination folder. Based on theFolderenum, they can upload toPUBLICfolders likeEVENT,FAQ, andNOTICE. This would allow them to host malicious content that appears to be from your service, as it would be served from your S3 bucket.
| @PostMapping | |
| @PreAuthorize("isAuthenticated() and hasRole('USER')") |
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