CVE-2021-23814
Last modified
CVE-2021-23814 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. This affects versions of the package unisharp/laravel-filemanager before 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: 1. EPSS estimates a 1.82% chance of exploitation in the next 30 days.
Description
This affects versions of the package unisharp/laravel-filemanager before 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: 1. Install a package with a web Laravel application. 2. Navigate to the Upload window 3. Upload an image file, then capture the request 4. Edit the request contents with a malicious file (webshell) 5. 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 [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Unisharp | Laravel-Filemanager | >= 0.0.0 |
References
- https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26Broken Link, Third Party Advisory
- https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26Broken Link, Third Party Advisory
- https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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