CVE-2021-23814
Unrestricted Upload of File with Dangerous Type in unisharp/laravel-filemanager
Impact
This affects the package unisharp/laravel-filemanager prior to version 2.6.2. The `upload()` function does not sufficiently validate the file type when uploading. An attacker may be able to reproduce the following steps: - Install a package with a web Laravel application. - Navigate to the Upload window - Upload an image file, then capture the request - Edit the request contents with a malicious file (webshell) - Enter the path of file uploaded on URL - Remote Code Execution **Note: Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in the [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | unisharp/laravel-filemanager | < 2.6.2 | 2.6.2 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Unisharp | Laravel-Filemanager | from 0.0.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26
- https://github.com/UniSharp/laravel-filemanager/issues/1113
- https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1
- https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2
- https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
- https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975
- https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
- https://github.com/advisories/GHSA-f8x6-m9f5-ffp8
- https://nvd.nist.gov/vuln/detail/CVE-2021-23814
- https://github.com/UniSharp/laravel-filemanager/commit/bd84899ce65a7f193e676dd8444e424fa50f64fa
- https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php#L26