GHSA-F8X6-M9F5-FFP8

Vulnerability from github – Published: 2022-01-06 21:08 – Updated: 2024-04-22 19:10
VLAI
Summary
Unrestricted Upload of File with Dangerous Type in unisharp/laravel-filemanager
Details

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.

Severity
6.7 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "unisharp/laravel-filemanager"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.6.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-23814"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-434"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-01-04T18:05:21Z",
    "nvd_published_at": "2021-12-17T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "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.\n\nAn attacker may be able to reproduce the following steps:\n- Install a package with a web Laravel application.\n- Navigate to the Upload window\n- Upload an image file, then capture the request\n- Edit the request contents with a malicious file (webshell)\n- Enter the path of file uploaded on URL\n- Remote Code Execution\n\n**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).",
  "id": "GHSA-f8x6-m9f5-ffp8",
  "modified": "2024-04-22T19:10:22Z",
  "published": "2022-01-06T21:08:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23814"
    },
    {
      "type": "WEB",
      "url": "https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975"
    },
    {
      "type": "WEB",
      "url": "https://github.com/UniSharp/laravel-filemanager/commit/bd84899ce65a7f193e676dd8444e424fa50f64fa"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/UniSharp/laravel-filemanager"
    },
    {
      "type": "WEB",
      "url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php#L26"
    },
    {
      "type": "WEB",
      "url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26"
    },
    {
      "type": "WEB",
      "url": "https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Unrestricted Upload of File with Dangerous Type in unisharp/laravel-filemanager"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.