Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1mOHg2LW05ZjUtZmZwOM0c3g

Unrestricted Upload of File with Dangerous Type in unisharp/laravel-filemanager

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.

Permalink: https://github.com/advisories/GHSA-f8x6-m9f5-ffp8
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1mOHg2LW05ZjUtZmZwOM0c3g
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 3 years ago
Updated: 7 months ago

CVSS Score: 6.7
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L

Identifiers: GHSA-f8x6-m9f5-ffp8, CVE-2021-23814
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-23814
• https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
• https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975
• https://github.com/UniSharp/laravel-filemanager/commit/bd84899ce65a7f193e676dd8444e424fa50f64fa
• https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php#L26
• https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26
• https://github.com/advisories/GHSA-f8x6-m9f5-ffp8

Repository: https://github.com/UniSharp/laravel-filemanager
Blast Radius: 22.8

Affected Packages